branches/zip: Merge branches/fast-index-creation -r1413.

Fix some bugs.  The tests innodb and innodb-index fail, but that might
be due to an old MySQL source tree being used.

data/data0data.c

@@ -383,6 +383,7 @@ dfield_print_also_hex(
 	const byte*	data;
 	ulint		len;
 	ulint		mtype;
+	ulint		prtype;
 	ulint		i;
 	ibool		print_also_hex;
 
@@ -396,6 +397,7 @@ dfield_print_also_hex(
 	}
 
 	mtype = dtype_get_mtype(dfield_get_type(dfield));
+	prtype = dtype_get_prtype(dfield_get_type(dfield));
 
 	if ((mtype == DATA_CHAR) || (mtype == DATA_VARCHAR)) {
 
@@ -403,12 +405,15 @@ dfield_print_also_hex(
 
 		for (i = 0; i < len; i++) {
 			int c = *data++;
+
 			if (!isprint(c)) {
 				print_also_hex = TRUE;
-				c = ' ';
-			}
+
+				fprintf(stderr, "\\x%02x", (unsigned char) c);
+			} else {
 				putc(c, stderr);
 			}
+		}
 
 		if (!print_also_hex) {
 
@@ -422,13 +427,122 @@ dfield_print_also_hex(
 		for (i = 0; i < len; i++) {
 			fprintf(stderr, "%02lx", (ulint)*data);
 
+			data++;
+		}
+	} else if (mtype == DATA_BINARY) {
+		data = dfield_get_data(dfield);
+		fputs(" Hex: ",stderr);
+
+		for (i = 0; i < len; i++) {
+			fprintf(stderr, "%02lx", (ulint)*data);
 			data++;
 		}
 	} else if (mtype == DATA_INT) {
-		ut_a(len == 4); /* only works for 32-bit integers */
-		fprintf(stderr, "%d", (int)mach_read_from_4(data));
+		dulint big_val;
+
+		if (len == 1) {
+			ulint	val;
+
+			val = (ulint)mach_read_from_1(data);
+
+			if (!(prtype & DATA_UNSIGNED)) {
+				val &= ~0x80;
+				fprintf(stderr, "%ld", (long) val);
 			} else {
-		ut_error;
+				fprintf(stderr, "%lu", (ulong) val);
+			}
+
+		} else if (len == 2) {
+			ulint	val;
+
+			val = (ulint)mach_read_from_2(data);
+
+			if (!(prtype & DATA_UNSIGNED)) {
+				val &= ~0x8000;
+				fprintf(stderr, "%ld", (long) val);
+			} else {
+				fprintf(stderr, "%lu", (ulong) val);
+			}
+
+		} else if (len == 3) {
+			ulint	val;
+
+			val = (ulint)mach_read_from_3(data);
+
+			if (!(prtype & DATA_UNSIGNED)) {
+				val &= ~0x800000;
+				fprintf(stderr, "%ld", (long) val);
+			} else {
+				fprintf(stderr, "%lu", (ulong) val);
+			}
+
+		} else if (len == 4) {
+			ulint	val;
+
+			val = (ulint)mach_read_from_4(data);
+
+			if (!(prtype & DATA_UNSIGNED)) {
+				val &= ~0x80000000;
+				fprintf(stderr, "%ld", (long) val);
+			} else {
+				fprintf(stderr, "%lu", (ulong) val);
+			}
+
+		} else if (len == 6) {
+			big_val = (dulint)mach_read_from_6(data);
+			fprintf(stderr, "{%lu %lu}",
+				ut_dulint_get_high(big_val),
+				ut_dulint_get_low(big_val));
+		} else if (len == 7) {
+			big_val = (dulint)mach_read_from_7(data);
+			fprintf(stderr, "{%lu %lu}",
+				ut_dulint_get_high(big_val),
+				ut_dulint_get_low(big_val));
+		} else if (len == 8) {
+			big_val = (dulint)mach_read_from_8(data);
+			fprintf(stderr, "{%lu %lu}",
+				ut_dulint_get_high(big_val),
+				ut_dulint_get_low(big_val));
+		} else {
+			fputs(" Hex: ",stderr);
+
+			for (i = 0; i < len; i++) {
+				fprintf(stderr, "%02lx", (ulint)*data);
+				data++;
+			}
+		}
+	} else if (mtype == DATA_SYS) {
+		dulint	id;
+
+		if (prtype & DATA_TRX_ID) {
+			id = mach_read_from_6(data);
+
+			fprintf(stderr, "trx_id {%lu %lu}",
+				ut_dulint_get_high(id), ut_dulint_get_low(id));
+		} else if (prtype & DATA_ROLL_PTR) {
+			id = mach_read_from_7(data);
+
+			fprintf(stderr, "roll_ptr {%lu %lu}",
+				ut_dulint_get_high(id), ut_dulint_get_low(id));
+		} else if (prtype & DATA_ROW_ID) {
+			id = mach_read_from_6(data);
+
+			fprintf(stderr, "row_id {%lu %lu}",
+				ut_dulint_get_high(id), ut_dulint_get_low(id));
+		} else {
+			id = mach_dulint_read_compressed(data);
+
+			fprintf(stderr, "mix_id {%lu %lu}",
+				ut_dulint_get_high(id), ut_dulint_get_low(id));
+		}
+
+	} else {
+		fputs(" Hex: ",stderr);
+
+		for (i = 0; i < len; i++) {
+			fprintf(stderr, "%02lx", (ulint)*data);
+			data++;
+		}
 	}
 }
 

dict/dict0crea.c

@@ -540,7 +540,11 @@ dict_build_index_def_step(
 	ut_ad((UT_LIST_GET_LEN(table->indexes) > 0)
 	      || dict_index_is_clust(index));
 
+	/* For fast index creation we have already allocated an index id
+	for this index so that we could write an UNDO log record for it.*/
+	if (ut_dulint_is_zero(index->id)) {
 		index->id = dict_hdr_get_new_id(DICT_HDR_INDEX_ID);
+	}
 
 	/* Inherit the space id from the table; we store all indexes of a
 	table in the same tablespace */
@@ -552,6 +556,9 @@ dict_build_index_def_step(
 
 	ins_node_set_new_row(node->ind_def, row);
 
+	/* Note that the index was created by this transaction. */
+	index->trx_id = trx->id;
+
 	return(DB_SUCCESS);
 }
 

dict/dict0dict.c

@@ -26,6 +26,7 @@ Created 1/8/1996 Heikki Tuuri
 #include "pars0sym.h"
 #include "que0que.h"
 #include "rem0cmp.h"
+#include "row0merge.h"
 #ifndef UNIV_HOTBACKUP
 # include "m_ctype.h" /* my_isspace() */
 #endif /* !UNIV_HOTBACKUP */
@@ -366,19 +367,6 @@ dict_table_get_next_index_noninline(
 	return(dict_table_get_next_index(index));
 }
 
-/**************************************************************************
-Returns an index object. */
-
-dict_index_t*
-dict_table_get_index_noninline(
-/*===========================*/
-				/* out: index, NULL if does not exist */
-	dict_table_t*	table,	/* in: table */
-	const char*	name)	/* in: index name */
-{
-	return(dict_table_get_index(table, name));
-}
-
 /**************************************************************************
 Returns a column's name. */
 
@@ -539,6 +527,33 @@ dict_table_autoinc_update(
 	mutex_exit(&(table->autoinc_mutex));
 }
 
+/**************************************************************************
+Looks for an index with the given table and index id.
+NOTE that we do not reserve the dictionary mutex. */
+dict_index_t*
+dict_index_get_on_id_low(
+/*=====================*/
+				/* out: index or NULL if not found from cache */
+	dict_table_t*	table,	/* in: table */
+	dulint		id)	/* in: index id */
+{
+	dict_index_t*	index;
+
+	index = dict_table_get_first_index(table);
+
+	while (index) {
+		if (0 == ut_dulint_cmp(id, index->id)) {
+			/* Found */
+
+			return(index);
+		}
+
+		index = dict_table_get_next_index(index);
+	}
+
+	return(NULL);
+}
+
 /************************************************************************
 Looks for column n in an index. */
 
@@ -1358,20 +1373,6 @@ dict_index_add_to_cache(
 	ut_ad(index->magic_n == DICT_INDEX_MAGIC_N);
 
 	ut_ad(mem_heap_validate(index->heap));
-
-#ifdef UNIV_DEBUG
-	{
-		dict_index_t*	index2;
-		index2 = UT_LIST_GET_FIRST(table->indexes);
-
-		while (index2 != NULL) {
-			ut_ad(ut_strcmp(index->name, index2->name) != 0);
-
-			index2 = UT_LIST_GET_NEXT(indexes, index2);
-		}
-	}
-#endif /* UNIV_DEBUG */
-
 	ut_a(!dict_index_is_clust(index)
 	     || UT_LIST_GET_LEN(table->indexes) == 0);
 
@@ -1412,7 +1413,10 @@ dict_index_add_to_cache(
 		dict_index_get_nth_field(new_index, i)->col->ord_part = 1;
 	}
 
-	new_index->page = (unsigned int) page_no;
+	new_index->stat_index_size = 1;
+	new_index->stat_n_leaf_pages = 1;
+
+	new_index->page = page_no;
 	rw_lock_create(&new_index->lock, SYNC_INDEX_TREE);
 
 	if (!UNIV_UNLIKELY(new_index->type & DICT_UNIVERSAL)) {
@@ -1497,7 +1501,7 @@ dict_index_find_cols(
 		/* It is an error not to find a matching column. */
 		ut_error;
 
-	found:
+found:
 		;
 	}
 }
@@ -1873,18 +1877,92 @@ dict_index_build_internal_non_clust(
 Checks if a table is referenced by foreign keys. */
 
 ibool
-dict_table_referenced_by_foreign_key(
-/*=================================*/
-				/* out: TRUE if table is referenced by a
-				foreign key */
-	dict_table_t*	table)	/* in: InnoDB table */
+dict_table_is_referenced_by_foreign_key(
+/*====================================*/
+					/* out: TRUE if table is referenced
+					by a foreign key */
+	const dict_table_t*	table)	/* in: InnoDB table */
 {
-	if (UT_LIST_GET_LEN(table->referenced_list) > 0) {
+	return(UT_LIST_GET_LEN(table->referenced_list) > 0);
+}
 
-		return(TRUE);
+/*************************************************************************
+Check if the index is referenced by a foreign key, if TRUE return foreign
+else return NULL */
+
+dict_foreign_t*
+dict_table_get_referenced_constraint(
+/*=================================*/
+				/* out: pointer to foreign key struct if index
+				is defined for foreign key, otherwise NULL */
+	dict_table_t*	table,	/* in: InnoDB table */
+	dict_index_t*	index)	/* in: InnoDB index */
+{
+	dict_foreign_t*	foreign  = NULL;
+
+	ut_ad(index && table);
+
+	/* If the referenced list is empty, nothing to do */
+
+	if (UT_LIST_GET_LEN(table->referenced_list) == 0) {
+
+		return(NULL);
 	}
 
-	return(FALSE);
+	foreign = UT_LIST_GET_FIRST(table->referenced_list);
+
+	while (foreign) {
+		if (foreign->referenced_index == index
+		    || foreign->referenced_index == index) {
+
+			return(foreign);
+		}
+
+		foreign = UT_LIST_GET_NEXT(referenced_list, foreign);
+	}
+
+	return(NULL);
+}
+
+/*************************************************************************
+Checks if a index is defined for a foreign key constraint. Index is a part
+of a foreign key constraint if the index is referenced by foreign key
+or index is a foreign key index. */
+
+dict_foreign_t*
+dict_table_get_foreign_constraint(
+/*==============================*/
+				/* out: pointer to foreign key struct if index
+				is defined for foreign key, otherwise NULL */
+	dict_table_t*	table,	/* in: InnoDB table */
+	dict_index_t*	index)	/* in: InnoDB index */
+{
+	dict_foreign_t*	foreign  = NULL;
+
+	ut_ad(index && table);
+
+	/* If list empty then nothgin to do */
+
+	if (UT_LIST_GET_LEN(table->foreign_list) == 0) {
+
+		return(NULL);
+	}
+
+	/* Check whether this index is defined for a foreign key */
+
+	foreign = UT_LIST_GET_FIRST(table->foreign_list);
+
+	while (foreign) {
+		if (foreign->foreign_index == index
+		    || foreign->referenced_index == index) {
+
+			return(foreign);
+		}
+
+		foreign = UT_LIST_GET_NEXT(foreign_list, foreign);
+	}
+
+	return(NULL);
 }
 
 /*************************************************************************
@@ -1967,7 +2045,8 @@ dict_foreign_find(
 
 /*************************************************************************
 Tries to find an index whose first fields are the columns in the array,
-in the same order. */
+in the same order and is not marked for deletion and is not the same
+as types_idx. */
 static
 dict_index_t*
 dict_foreign_find_index(
@@ -1986,16 +2065,23 @@ dict_foreign_find_index(
 				be declared NOT NULL */
 {
 	dict_index_t*	index;
-	dict_field_t*	field;
-	const char*	col_name;
-	ulint		i;
 
 	index = dict_table_get_first_index(table);
 
 	while (index != NULL) {
-		if (dict_index_get_n_fields(index) >= n_cols) {
+		/* Ignore matches that refer to the same instance
+		or the index is to be dropped */
+		if (index->to_be_dropped || types_idx == index) {
+
+			goto next_rec;
+
+		} else if (dict_index_get_n_fields(index) >= n_cols) {
+			ulint		i;
 
 			for (i = 0; i < n_cols; i++) {
+				dict_field_t*	field;
+				const char*	col_name;
+
 				field = dict_index_get_nth_field(index, i);
 
 				col_name = dict_table_get_col_name(
@@ -2036,12 +2122,73 @@ dict_foreign_find_index(
 			}
 		}
 
+next_rec:
 		index = dict_table_get_next_index(index);
 	}
 
 	return(NULL);
 }
 
+/*************************************************************************
+Tries to find an index whose fields match exactly, in the same order. If
+more than one index is found then return the index with the higher id.*/
+static
+dict_index_t*
+dict_find_index_by_max_id(
+/*======================*/
+				/* out: matching index, NULL if not found */
+	dict_table_t*	table,	/* in: table */
+	const char*	name,	/* in: the index name to find */
+	const char**	columns,/* in: array of column names */
+	ulint		n_cols)	/* in: number of columns */
+{
+	dict_index_t*	index;
+	dict_index_t*	found;
+
+	found = NULL;
+	index = dict_table_get_first_index(table);
+
+	while (index != NULL) {
+		if (ut_strcmp(index->name, name) == 0
+		    && dict_index_get_n_ordering_defined_by_user(index)
+		    == n_cols) {
+
+			ulint		i;
+
+			for (i = 0; i < n_cols; i++) {
+				dict_field_t*	field;
+				const char*	col_name;
+
+				field = dict_index_get_nth_field(index, i);
+
+				col_name = dict_table_get_col_name(
+					table, dict_col_get_no(field->col));
+
+				if (0 != innobase_strcasecmp(
+					    columns[i], col_name)) {
+
+					break;
+				}
+			}
+
+			if (i == n_cols) {
+				/* We found a matching index, select
+				the index with the higher id*/
+
+				if (!found
+				    || ut_dulint_cmp(index->id, found->id) > 0) {
+
+					found = index;
+				}
+			}
+		}
+
+		index = dict_table_get_next_index(index);
+	}
+
+	return(found);
+}
+
 /**************************************************************************
 Report an error in a foreign key definition. */
 static
@@ -4013,6 +4160,7 @@ dict_index_print_low(
 {
 	ib_longlong	n_vals;
 	ulint		i;
+	const char*	type_string;
 
 	ut_ad(mutex_own(&(dict_sys->mutex)));
 
@@ -4023,6 +4171,14 @@ dict_index_print_low(
 		n_vals = index->stat_n_diff_key_vals[1];
 	}
 
+	if (index->type & DICT_CLUSTERED) {
+		type_string = "clustered index";
+	} else if (index->type & DICT_UNIQUE) {
+		type_string = "unique index";
+	} else {
+		type_string = "secondary index";
+	}
+
 	fprintf(stderr,
 		"  INDEX: name %s, id %lu %lu, fields %lu/%lu,"
 		" uniq %lu, type %lu\n"
@@ -4261,6 +4417,7 @@ dict_print_info_on_foreign_keys(
 
 /************************************************************************
 Displays the names of the index and the table. */
+
 void
 dict_index_name_print(
 /*==================*/
@@ -4273,3 +4430,417 @@ dict_index_name_print(
 	fputs(" of table ", file);
 	ut_print_name(file, trx, TRUE, index->table_name);
 }
+
+/**************************************************************************
+Get index by name */
+
+dict_index_t*
+dict_table_get_index_on_name(
+/*=========================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	const char*	name)	/* in: name of the index to find */
+{
+	dict_index_t*	index;
+
+	index = dict_table_get_first_index(table);
+
+	while (index != NULL) {
+		if (ut_strcmp(index->name, name) == 0) {
+
+			return(index);
+		}
+
+		index = dict_table_get_next_index(index);
+	}
+
+	return(NULL);
+
+}
+
+/**************************************************************************
+Find and index that is equivalent to the one passed in. */
+
+dict_index_t*
+dict_table_find_equivalent_index(
+/*=============================*/
+	dict_table_t*	table,  /* in/out: table */
+	dict_index_t*	index)	/* in: index to match */
+{
+	ulint		i;
+	const char**	column_names;
+	dict_index_t*	equiv_index;
+
+	if (UT_LIST_GET_LEN(table->foreign_list) == 0) {
+
+		return(NULL);
+	}
+
+	column_names = mem_alloc(index->n_fields * sizeof *column_names);
+
+	/* Convert the column names to the format & type accepted by the find
+	index function */
+	for (i = 0; i < index->n_fields; i++) {
+		column_names[i] = index->fields[i].name;
+	}
+
+	equiv_index = dict_foreign_find_index(
+		table, (const char**)column_names, index->n_fields,
+		index, TRUE, FALSE);
+
+	mem_free(column_names);
+
+	return(equiv_index);
+}
+
+/**************************************************************************
+Replace the index passed in with another equivalent index in the tables
+foreign key list. */
+
+void
+dict_table_replace_index_in_foreign_list(
+/*=====================================*/
+	dict_table_t*	table,  /* in/out: table */
+	dict_index_t*	index)	/* in: index to be replaced */
+{
+	dict_index_t*	new_index;
+
+	new_index = dict_table_find_equivalent_index(table, index);
+
+	/* If match found */
+	if (new_index) {
+		dict_foreign_t*	foreign;
+
+		ut_a(new_index != index);
+
+		foreign = UT_LIST_GET_FIRST(table->foreign_list);
+
+		/* If the list is not empty then this should hold */
+		ut_a(foreign);
+
+		/* Iterate over the foreign index list and replace the index
+		passed in with the new index */
+		while (foreign) {
+
+			if (foreign->foreign_index == index) {
+				foreign->foreign_index = new_index;
+			}
+
+			foreign = UT_LIST_GET_NEXT(foreign_list, foreign);
+		}
+	}
+}
+
+/**************************************************************************
+In case there is more than one index with the same name return the index
+with the min(id). */
+
+dict_index_t*
+dict_table_get_index_on_name_and_min_id(
+/*=====================================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	const char*	name)	/* in: name of the index to find */
+{
+	dict_index_t*	index;
+	dict_index_t*	min_index; /* Index with matching name and min(id) */
+
+	min_index = NULL;
+	index = dict_table_get_first_index(table);
+
+	while (index != NULL) {
+		if (ut_strcmp(index->name, name) == 0) {
+			if (!min_index
+			    || ut_dulint_cmp(index->id, min_index->id) < 0) {
+
+				min_index = index;
+			}
+		}
+
+		index = dict_table_get_next_index(index);
+	}
+
+	return(min_index);
+
+}
+
+/**************************************************************************
+Returns an index object by matching on the name and column names and
+if more than one index matches return the index with the max id */
+
+dict_index_t*
+dict_table_get_index_by_max_id(
+/*===========================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	const char*	name,	/* in: index name to find*/
+	const char**	column_names, /* in: column names to match */
+	ulint		n_cols)	/* in: number of columns */
+{
+	/* Find an exact match with the passed in index */
+	return(dict_find_index_by_max_id(table, name, column_names, n_cols));
+}
+
+/**************************************************************************
+Check for duplicate index entries in a table [using the index name] */
+#ifdef UNIV_DEBUG
+
+void
+dict_table_check_for_dup_indexes(
+/*=============================*/
+	dict_table_t*	table)	/* in: Check for dup indexes in this table */
+{
+	/* Check for duplicates, ignoring indexes that are marked
+	as to be dropped */
+
+	dict_index_t*	index1;
+	dict_index_t*	index2;
+
+	/* The primary index _must_ exist */
+	ut_a(UT_LIST_GET_LEN(table->indexes) > 0);
+
+	index1 = UT_LIST_GET_FIRST(table->indexes);
+	index2 = UT_LIST_GET_NEXT(indexes, index1);
+
+	while (index1 && index2) {
+
+		while (index2) {
+
+			if (!index2->to_be_dropped) {
+				ut_ad(ut_strcmp(index1->name, index2->name));
+			}
+
+			index2 = UT_LIST_GET_NEXT(indexes, index2);
+		}
+
+		index1 = UT_LIST_GET_NEXT(indexes, index1);
+		index2 = UT_LIST_GET_NEXT(indexes, index1);
+	}
+}
+#endif /* UNIV_DEBUG */
+
+/**************************************************************************
+Create an undo list for the trx.*/
+
+void
+dict_undo_create_list(
+/*==================*/
+	trx_t*		trx)		/* out: dict_undo_t list */
+{
+	ut_a(!trx->dict_undo_list);
+
+	trx->dict_undo_list = mem_alloc(sizeof(*trx->dict_undo_list));
+
+	UT_LIST_INIT(*trx->dict_undo_list);
+}
+
+/**************************************************************************
+Create an dict_undo_t element and append to the undo list of the trx.*/
+
+dict_undo_t*
+dict_undo_create_element(
+/*=====================*/		/* out: dict_undo_t element*/
+	trx_t*		trx)		/* in: create & add elem to this trx */
+{
+	dict_undo_t*	dict_undo;
+
+	ut_a(trx->dict_undo_list);
+
+	dict_undo = mem_alloc(sizeof(*dict_undo));
+	memset(dict_undo, '\0', sizeof(*dict_undo));
+
+	UT_LIST_ADD_LAST(node, *trx->dict_undo_list, dict_undo);
+
+	return(dict_undo);
+}
+
+/**************************************************************************
+Free all the nodes on the undo list and free list.*/
+
+void
+dict_undo_free_list(
+/*================*/
+	trx_t*		trx)
+{
+	dict_undo_t*	dict_undo;
+
+	ut_a(trx->dict_undo_list);
+
+	dict_undo = UT_LIST_GET_FIRST(*trx->dict_undo_list);
+
+	while (dict_undo) {
+
+		UT_LIST_REMOVE(node, *trx->dict_undo_list, dict_undo);
+
+		mem_free(dict_undo);
+
+		dict_undo = UT_LIST_GET_FIRST(*trx->dict_undo_list);
+	}
+
+	mem_free(trx->dict_undo_list);
+
+	trx->dict_undo_list = NULL;
+}
+
+/**************************************************************************
+Create an undo list for the trx.*/
+
+void
+dict_redo_create_list(
+/*==================*/
+	trx_t*		trx)		/* out: dict_undo_t list */
+{
+	ut_a(!trx->dict_redo_list);
+
+	trx->dict_redo_list = mem_alloc(sizeof(*trx->dict_redo_list));
+
+	UT_LIST_INIT(*trx->dict_redo_list);
+}
+
+/**************************************************************************
+Create an dict_undo_t element and append to the undo list of the trx.*/
+
+dict_redo_t*
+dict_redo_create_element(
+/*=====================*/		/* out: dict_undo_t element*/
+	trx_t*		trx)		/* in: create & add elem to this trx */
+{
+	dict_redo_t*	dict_redo;
+
+	ut_a(trx->dict_redo_list);
+
+	dict_redo = mem_alloc(sizeof(*dict_redo));
+	memset(dict_redo, '\0', sizeof(*dict_redo));
+
+	UT_LIST_ADD_LAST(node, *trx->dict_redo_list, dict_redo);
+
+	return(dict_redo);
+}
+
+/**************************************************************************
+Free all the nodes on the undo list and free list.*/
+
+void
+dict_redo_free_list(
+/*================*/
+	trx_t*		trx)
+{
+	dict_redo_t*	dict_redo;
+
+	ut_a(trx->dict_redo_list);
+
+	dict_redo = UT_LIST_GET_FIRST(*trx->dict_redo_list);
+
+	while (dict_redo) {
+
+		UT_LIST_REMOVE(node, *trx->dict_redo_list, dict_redo);
+
+		mem_free(dict_redo);
+
+		dict_redo = UT_LIST_GET_FIRST(*trx->dict_redo_list);
+	}
+
+	mem_free(trx->dict_redo_list);
+
+	trx->dict_redo_list = NULL;
+}
+
+/**************************************************************************
+Get the index by name from the transaction's REDO list.*/
+
+dict_index_t*
+dict_redo_get_index_on_name(
+/*========================*/
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	table,		/* in: table the index belongs to */
+	const char*	name)		/* in: index name */
+{
+	dict_redo_t*	dict_redo;
+
+	ut_a(trx->dict_redo_list);
+
+	dict_redo = UT_LIST_GET_FIRST(*trx->dict_redo_list);
+
+	while (dict_redo) {
+
+		if (dict_redo->index->table == table
+		    && ut_strcmp(dict_redo->index->name, name) == 0) {
+
+			return(dict_redo->index);
+		}
+
+		dict_redo = UT_LIST_GET_NEXT(node, dict_redo);
+	}
+
+	return(NULL);
+}
+
+/**************************************************************************
+Remove the index from the transaction's REDO list.*/
+
+void
+dict_redo_remove_index(
+/*===================*/
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index)		/* in: index to remove */
+{
+	dict_redo_t*	dict_redo;
+
+	ut_a(trx->dict_redo_list);
+
+	dict_redo = UT_LIST_GET_FIRST(*trx->dict_redo_list);
+
+	while (dict_redo) {
+
+		if (dict_redo->index == index) {
+			UT_LIST_REMOVE(node, *trx->dict_redo_list, dict_redo);
+
+			break;
+		}
+
+		dict_redo = UT_LIST_GET_NEXT(node, dict_redo);
+	}
+
+}
+
+/**************************************************************************
+Add the indexes to SYS_INDEX.*/
+
+ulint
+dict_rename_indexes(
+/*================*/
+	trx_t*		trx,		/* in: transaction */
+	ibool		commit_flag)	/* in: UNUSED */
+{
+	dict_redo_t*	dict_redo;
+	ulint		err = DB_SUCCESS;
+
+	ut_a(trx->dict_redo_list);
+	ut_a(commit_flag);
+
+	dict_redo = UT_LIST_GET_FIRST(*trx->dict_redo_list);
+
+	while (dict_redo && err == DB_SUCCESS) {
+		dict_index_t*	index;
+
+		index = dict_redo->index;
+
+		ut_a(index->table);
+		ut_a(!ut_dulint_is_zero(index->id));
+		ut_a(index->space == index->table->space);
+#ifdef UNIV_DEBUG
+		fprintf(stderr, "Renaming index: %s\n", index->name);
+#endif /* UNIV_DEBUG */
+
+		err = row_merge_rename_index(trx, index->table, index);
+
+		dict_redo = UT_LIST_GET_NEXT(node, dict_redo);
+	}
+
+	/* We free the list anyway - even if there is an error of some sort,
+	let the UNDO code handle the errors.*/
+	dict_redo_free_list(trx);
+
+	return(err);
+}
+

dict/dict0load.c

@@ -476,32 +476,12 @@ dict_load_columns(
 	mtr_commit(&mtr);
 }
 
-/************************************************************************
-Report that an index field or index for a table has been delete marked. */
-static
-void
-dict_load_report_deleted_index(
-/*===========================*/
-	const char*	name,	/* in: table name */
-	ulint		field)	/* in: index field, or ULINT_UNDEFINED */
-{
-	fprintf(stderr, "InnoDB: Error: data dictionary entry"
-		" for table %s is corrupt!\n", name);
-	if (field != ULINT_UNDEFINED) {
-		fprintf(stderr,
-			"InnoDB: Index field %lu is delete marked.\n", field);
-	} else {
-		fputs("InnoDB: An index is delete marked.\n", stderr);
-	}
-}
-
 /************************************************************************
 Loads definitions for index fields. */
 static
 void
 dict_load_fields(
 /*=============*/
-	dict_table_t*	table,	/* in: table */
 	dict_index_t*	index,	/* in: index whose fields to load */
 	mem_heap_t*	heap)	/* in: memory heap for temporary storage */
 {
@@ -543,13 +523,18 @@ dict_load_fields(
 		rec = btr_pcur_get_rec(&pcur);
 
 		ut_a(btr_pcur_is_on_user_rec(&pcur, &mtr));
+
+		/* There could be delete marked records in SYS_FIELDS
+		because SYS_FIELDS.INDEX_ID can be updated
+		by ALTER TABLE ADD INDEX. */
+
 		if (rec_get_deleted_flag(rec, 0)) {
-			dict_load_report_deleted_index(table->name, i);
+
+			goto next_rec;
 		}
 
 		field = rec_get_nth_field_old(rec, 0, &len);
 		ut_ad(len == 8);
-		ut_a(ut_memcmp(buf, field, len) == 0);
 
 		field = rec_get_nth_field_old(rec, 1, &len);
 		ut_a(len == 4);
@@ -584,6 +569,7 @@ dict_load_fields(
 							  (char*) field, len),
 					 prefix_len);
 
+next_rec:
 		btr_pcur_move_to_next_user_rec(&pcur, &mtr);
 	}
 
@@ -662,16 +648,9 @@ dict_load_indexes(
 
 		if (ut_memcmp(buf, field, len) != 0) {
 			break;
-		}
-
-		if (rec_get_deleted_flag(rec, 0)) {
-			dict_load_report_deleted_index(table->name,
-						       ULINT_UNDEFINED);
-
-			btr_pcur_close(&pcur);
-			mtr_commit(&mtr);
-
-			return(FALSE);
+		} else if (rec_get_deleted_flag(rec, 0)) {
+			/* Skip delete marked records */
+			goto next_rec;
 		}
 
 		field = rec_get_nth_field_old(rec, 1, &len);
@@ -714,12 +693,15 @@ dict_load_indexes(
 		if ((type & DICT_CLUSTERED) == 0
 		    && NULL == dict_table_get_first_index(table)) {
 
+			if (*table->name != TEMP_TABLE_PREFIX) {
+
 				fprintf(stderr,
-				"InnoDB: Error: trying to load index %s"
-				" for table %s\n"
+					"InnoDB: Error: trying to"
+					" load index %s for table %s\n"
 					"InnoDB: but the first index"
 					" is not clustered!\n",
 					name_buf, table->name);
+			}
 
 			btr_pcur_close(&pcur);
 			mtr_commit(&mtr);
@@ -741,10 +723,11 @@ dict_load_indexes(
 						      space, type, n_fields);
 			index->id = id;
 
-			dict_load_fields(table, index, heap);
+			dict_load_fields(index, heap);
 			dict_index_add_to_cache(table, index, page_no);
 		}
 
+next_rec:
 		btr_pcur_move_to_next_user_rec(&pcur, &mtr);
 	}
 

dict/dict0mem.c

@@ -62,6 +62,7 @@ dict_mem_table_create(
 	table->n_foreign_key_checks_running = 0;
 
 	table->cached = FALSE;
+	table->to_be_dropped = 0;
 
 	table->cols = mem_heap_alloc(heap, (n_cols + DATA_N_SYS_COLS)
 				     * sizeof(dict_col_t));
@@ -75,6 +76,7 @@ dict_mem_table_create(
 	UT_LIST_INIT(table->locks);
 	UT_LIST_INIT(table->foreign_list);
 	UT_LIST_INIT(table->referenced_list);
+	UT_LIST_INIT(table->prebuilts);
 
 #ifdef UNIV_DEBUG
 	table->does_not_fit_in_memory = FALSE;
@@ -236,6 +238,7 @@ dict_mem_index_create(
 	heap = mem_heap_create(DICT_HEAP_SIZE);
 	index = mem_heap_alloc(heap, sizeof(dict_index_t));
 
+	index->id = ut_dulint_create(0, 0);
 	index->heap = heap;
 
 	index->type = type;
@@ -253,6 +256,8 @@ dict_mem_index_create(
 	index->stat_n_diff_key_vals = NULL;
 
 	index->cached = FALSE;
+	index->to_be_dropped = FALSE;
+	index->trx_id = ut_dulint_create(0, 0);
 	memset(&index->lock, 0, sizeof index->lock);
 #ifdef UNIV_DEBUG
 	index->magic_n = DICT_INDEX_MAGIC_N;

handler/ha_innodb.h

@@ -85,13 +85,9 @@ class ha_innobase: public handler
 	const char *index_type(uint key_number) { return "BTREE"; }
 	const char** bas_ext() const;
 	ulonglong table_flags() const { return int_table_flags; }
-	ulong index_flags(uint idx, uint part, bool all_parts) const
-	{
-	  return (HA_READ_NEXT |
-		  HA_READ_PREV |
-		  HA_READ_ORDER |
-		  HA_READ_RANGE |
-		  HA_KEYREAD_ONLY);
+	ulong index_flags(uint idx, uint part, bool all_parts) const {
+		return(HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER
+		       | HA_READ_RANGE | HA_KEYREAD_ONLY);
 	}
 	uint max_supported_keys()	   const { return MAX_KEY; }
 				/* An InnoDB page must store >= 2 keys;
@@ -117,6 +113,7 @@ class ha_innobase: public handler
 	void try_semi_consistent_read(bool yes);
 	void unlock_row();
 
+	bool is_index_available(uint index);
 	int index_init(uint index, bool sorted);
 	int index_end();
 	int index_read(byte * buf, const byte * key,
@@ -185,6 +182,10 @@ class ha_innobase: public handler
 	static ulonglong get_mysql_bin_log_pos();
 	bool primary_key_is_clustered() { return true; }
 	int cmp_ref(const byte *ref1, const byte *ref2);
+	int add_index(TABLE *table_arg, KEY *key_info, uint num_of_keys);
+	int prepare_drop_index(TABLE *table_arg, uint *key_num,
+			       uint num_of_keys);
+	int final_drop_index(TABLE *table_arg);
 	bool check_if_incompatible_data(HA_CREATE_INFO *info,
 					uint table_changes);
 };

include/data0data.ic

@@ -279,8 +279,13 @@ dtuple_create(
 		ulint	i;
 
 		for (i = 0; i < n_fields; i++) {
-			(tuple->fields + i)->data = &data_error;
-			dfield_get_type(tuple->fields + i)->mtype = DATA_ERROR;
+			dfield_t*       field;
+
+			field = dtuple_get_nth_field(tuple, i);
+
+			dfield_set_len(field, UNIV_SQL_NULL);
+			field->data = &data_error;
+			dfield_get_type(field)->mtype = DATA_ERROR;
 		}
 	}
 #endif

include/db0err.h

@@ -62,6 +62,9 @@ Created 5/24/1996 Heikki Tuuri
 					activated by the operation would
 					lead to a duplicate key in some
 					table */
+#define	DB_CANNOT_DROP_FOREIGN_INDEX 47 /* we cannot drop an index because
+					it is needed on foreign key 
+					constraint */
 
 /* The following are partial failure codes */
 #define DB_FAIL			1000

include/dict0dict.h

@@ -53,6 +53,15 @@ dict_remove_db_name(
 				/* out: table name */
 	const char*	name);	/* in: table name in the form
 				dbname '/' tablename */
+/**************************************************************************
+Returns a table object based on table id. */
+
+dict_table_t*
+dict_table_get_on_id(
+/*=================*/
+                                /* out: table, NULL if does not exist */
+        dulint  table_id,       /* in: table id */
+        trx_t*  trx);           /* in: transaction handle */
 /************************************************************************
 Decrements the count of open MySQL handles to a table. */
 
@@ -248,6 +257,14 @@ dict_table_rename_in_cache(
 					to preserve the original table name
 					in constraints which reference it */
 /**************************************************************************
+Removes an index from the dictionary cache. */
+
+void
+dict_index_remove_from_cache(
+/*=========================*/
+	dict_table_t*	table,	/* in: table */
+	dict_index_t*	index);	/* in, own: index */
+/**************************************************************************
 Change the id of a table object in the dictionary cache. This is used in
 DISCARD TABLESPACE. */
 
@@ -270,14 +287,34 @@ dict_foreign_add_to_cache(
 	ibool		check_charsets);/* in: TRUE=check charset
 					compatibility */
 /*************************************************************************
+Check if the index is referenced by a foreign key, if TRUE return the
+matching instance NULL otherwise. */
+
+dict_foreign_t*
+dict_table_get_referenced_constraint(
+/*=================================*/
+				/* out: pointer to foreign key struct if index
+				is defined for foreign key, otherwise NULL */
+	dict_table_t*	table,	/* in: InnoDB table */
+	dict_index_t*	index);	/* in: InnoDB index */
+/*************************************************************************
 Checks if a table is referenced by foreign keys. */
 
 ibool
-dict_table_referenced_by_foreign_key(
-/*=================================*/
-				/* out: TRUE if table is referenced by a
-				foreign key */
-	dict_table_t*	table);	/* in: InnoDB table */
+dict_table_is_referenced_by_foreign_key(
+/*====================================*/
+					/* out: TRUE if table is referenced
+					by a foreign key */
+	const dict_table_t*	table);	/* in: InnoDB table */
+/**************************************************************************
+Replace the index in the foreign key list that matches this index's
+definition with an equivalent index. */
+
+void
+dict_table_replace_index_in_foreign_list(
+/*=====================================*/
+	dict_table_t*	table,  /* in/out: table */
+	dict_index_t*	index);	/* in: index to be replaced */
 /**************************************************************************
 Determines whether a string starts with the specified keyword. */
 
@@ -290,6 +327,18 @@ dict_str_starts_with_keyword(
 	const char*	str,		/* in: string to scan for keyword */
 	const char*	keyword);	/* in: keyword to look for */
 /*************************************************************************
+Checks if a index is defined for a foreign key constraint. Index is a part
+of a foreign key constraint if the index is referenced by foreign key
+or index is a foreign key index */
+
+dict_foreign_t*
+dict_table_get_foreign_constraint(
+/*==============================*/
+				/* out: pointer to foreign key struct if index
+				is defined for foreign key, otherwise NULL */
+	dict_table_t*	table,	/* in: InnoDB table */
+	dict_index_t*	index);	/* in: InnoDB index */
+/*************************************************************************
 Scans a table create SQL string and adds to the data dictionary
 the foreign key constraints declared in the string. This function
 should be called after the indexes for a table have been created.
@@ -350,24 +399,18 @@ dict_table_get(
 					/* in: whether to increment the open
 					handle count on the table */
 /**************************************************************************
-Returns a table object based on table id. */
+Returns a index object, based on table and index id, and memoryfixes it. */
 
-dict_table_t*
-dict_table_get_on_id(
-/*=================*/
-				/* out: table, NULL if does not exist */
-	dulint	table_id,	/* in: table id */
-	trx_t*	trx);		/* in: transaction handle */
-/**************************************************************************
-Returns a table object based on table id. */
-UNIV_INLINE
-dict_table_t*
-dict_table_get_on_id_low(
+dict_index_t*
+dict_index_get_on_id_low(
 /*=====================*/
-				/* out: table, NULL if does not exist */
-	dulint	table_id);	/* in: table id */
+					/* out: index, NULL if does not
+					exist */
+	dict_table_t*	table,		/* in: table */
+	dulint		index_id);	/* in: index id */
 /**************************************************************************
 Checks if a table is in the dictionary cache. */
+
 UNIV_INLINE
 dict_table_t*
 dict_table_check_if_in_cache_low(
@@ -384,6 +427,14 @@ dict_table_get_low(
 					/* out: table, NULL if not found */
 	const char*	table_name);	/* in: table name */
 /**************************************************************************
+Returns a table object based on table id. */
+UNIV_INLINE
+dict_table_t*
+dict_table_get_on_id_low(
+/*=====================*/
+				/* out: table, NULL if does not exist */
+	dulint	table_id);	/* in: table id */
+/**************************************************************************
 A noninlined version of dict_table_get_low. */
 
 dict_table_t*
@@ -392,23 +443,17 @@ dict_table_get_low_noninlined(
 					/* out: table, NULL if not found */
 	const char*	table_name);	/* in: table name */
 /**************************************************************************
-Returns an index object. */
-UNIV_INLINE
-dict_index_t*
-dict_table_get_index(
-/*=================*/
-				/* out: index, NULL if does not exist */
-	dict_table_t*	table,	/* in: table */
-	const char*	name);	/* in: index name */
-/**************************************************************************
-Returns an index object. */
+Returns an index object by matching on the name and column names and if
+more than index is found return the index with the higher id.*/
 
 dict_index_t*
-dict_table_get_index_noninline(
+dict_table_get_index_by_max_id(
 /*===========================*/
 				/* out: index, NULL if does not exist */
 	dict_table_t*	table,	/* in: table */
-	const char*	name);	/* in: index name */
+	const char*	name,	/* in: index name to find*/
+	const char**	column_names, /* in: column names to match */
+	ulint		n_cols);/* in: number of columns */
 /**************************************************************************
 Returns a column's name. */
 
@@ -855,6 +900,14 @@ dict_index_check_search_tuple(
 				/* out: TRUE if ok */
 	dict_index_t*	index,	/* in: index */
 	const dtuple_t*	tuple);	/* in: tuple used in a search */
+/**************************************************************************
+Check for duplicate index entries in a table [using the index name] */
+
+void
+dict_table_check_for_dup_indexes(
+/*=============================*/
+	dict_table_t*	table);	/* in: Check for dup indexes in this table */
+
 #endif /* UNIV_DEBUG */
 /**************************************************************************
 Builds a node pointer out of a physical record and a page number. */
@@ -1012,6 +1065,118 @@ dict_scan_to(
 				/* out: scanned up to this */
 	const char*	ptr,	/* in: scan from */
 	const char*	string);/* in: look for this */
+/*************************************************************************
+Removes an index from the cache */
+
+void
+dict_index_remove_from_cache(
+/*=========================*/
+	dict_table_t*	table,	/* in: table */
+	dict_index_t*	index);	/* in, own: index */
+/**************************************************************************
+Get index by name */
+
+dict_index_t*
+dict_table_get_index_on_name(
+/*=========================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	const char*	name);	/* in: name of the index to find */
+/**************************************************************************
+Find and index that is equivalent to the one passed in and is not marked
+for deletion. */
+
+dict_index_t*
+dict_table_find_equivalent_index(
+/*=============================*/
+	dict_table_t*	table,  /* in/out: table */
+	dict_index_t*	index);	/* in: index to match */
+/**************************************************************************
+Find and return an index in the table that matches the index id.*/
+
+dict_index_t*
+dict_table_get_index_on_id_noninline(
+/*=================================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	dulint		index_id);/* in: table id */
+/**************************************************************************
+In case there is more than one index with the same name return the index
+with the min(id). */
+
+dict_index_t*
+dict_table_get_index_on_name_and_min_id(
+/*====================================*/
+				/* out: index, NULL if does not exist */
+	dict_table_t*	table,	/* in: table */
+	const char*	name);	/* in: name of the index to find */
+/**************************************************************************
+Create and return an undo list. */
+
+void
+dict_undo_create_list(
+/*==================*/
+	trx_t*		trx);	/* in: create undo list for this trx.*/
+/**************************************************************************
+Create element of the undo list and append to the passed in list. */
+
+dict_undo_t*
+dict_undo_create_element(
+/*=====================*/	/* out: dict_undo_t element*/
+	trx_t*		trx);	/* in: create & add elem to this trx.*/
+/**************************************************************************
+Free all the nodes on the undo list and free list.*/
+
+void
+dict_undo_free_list(
+/*================*/
+	trx_t*		trx);	/* in: free this trx's undo list */
+/**************************************************************************
+Create and return a redo list. */
+
+void
+dict_redo_create_list(
+/*==================*/
+	trx_t*		trx);	/* in: create redo list for this trx.*/
+/**************************************************************************
+Create element of the redo list and append to the passed in transaction. */
+
+dict_redo_t*
+dict_redo_create_element(
+/*=====================*/	/* out: dict_redo_t element*/
+	trx_t*		trx);	/* in: create & add elem to this trx.*/
+/**************************************************************************
+Free all the nodes on the redo list and free list.*/
+
+void
+dict_redo_free_list(
+/*================*/
+	trx_t*		trx);	/* in: free this trx's redo list */
+/**************************************************************************
+Add the indexes to SYS_INDEX.*/
+
+ulint
+dict_rename_indexes(
+/*================*/
+	trx_t*		trx,/* in: transaction */
+	ibool		commit_flag); /* in: ignored for now */
+/**************************************************************************
+Remove the index from the transaction's REDO list.*/
+
+void
+dict_redo_remove_index(
+/*===================*/
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index);		/* in: index to remove */
+/**************************************************************************
+Get the index by name from the transaction's REDO list.*/
+
+dict_index_t*
+dict_redo_get_index_on_name(
+/*========================*/
+	trx_t*		trx,	/* in: transaction */
+	dict_table_t*	table,	/* in: the table the index belongs to */
+	const char*	name);	/* in: index name */
 /* Buffers for storing detailed information about the latest foreign key
 and unique key errors */
 extern FILE*	dict_foreign_err_file;
@@ -1050,6 +1215,10 @@ struct dict_sys_struct{
 	dict_table_t*	sys_fields;	/* SYS_FIELDS table */
 };
 
+#define	TEMP_TABLE_PREFIX	'/'	/* Table name prefix for temporary
+					internal tables. Used in fast index
+					creation etc. */
+
 #ifndef UNIV_NONINL
 #include "dict0dict.ic"
 #endif

include/dict0dict.ic

@@ -647,28 +647,3 @@ dict_table_get_on_id_low(
 	return(table);
 }
 
-/**************************************************************************
-Returns an index object. */
-UNIV_INLINE
-dict_index_t*
-dict_table_get_index(
-/*=================*/
-				/* out: index, NULL if does not exist */
-	dict_table_t*	table,	/* in: table */
-	const char*	name)	/* in: index name */
-{
-	dict_index_t*	index	= NULL;
-
-	index = dict_table_get_first_index(table);
-
-	while (index != NULL) {
-		if (ut_strcmp(name, index->name) == 0) {
-
-			break;
-		}
-
-		index = dict_table_get_next_index(index);
-	}
-
-	return(index);
-}

include/dict0load.h

@@ -13,6 +13,7 @@ Created 4/24/1996 Heikki Tuuri
 #include "univ.i"
 #include "dict0types.h"
 #include "ut0byte.h"
+#include "mem0mem.h"
 
 /************************************************************************
 In a crash recovery we already have all the tablespace objects created.

include/dict0mem.h

@@ -24,6 +24,7 @@ Created 1/8/1996 Heikki Tuuri
 #include "lock0types.h"
 #include "hash0hash.h"
 #include "que0types.h"
+#include "row0types.h"
 
 /* Type flags of an index: OR'ing of the flags is allowed to define a
 combination of types */
@@ -32,6 +33,7 @@ combination of types */
 #define	DICT_UNIVERSAL	4	/* index which can contain records from any
 				other index */
 #define	DICT_IBUF 	8	/* insert buffer tree */
+#define DICT_NOT_READY  16	/* this index is being build */
 
 /* Types for a table object */
 #define DICT_TABLE_ORDINARY		1
@@ -185,7 +187,7 @@ struct dict_index_struct{
 	dulint		id;	/* id of the index */
 	mem_heap_t*	heap;	/* memory heap */
 	ulint		type;	/* index type */
-	const char*	name;	/* index name */
+	char*		name;	/* index name */
 	const char*	table_name; /* table name */
 	dict_table_t*	table;	/* back pointer to table */
 	unsigned	space:32;
@@ -207,6 +209,10 @@ struct dict_index_struct{
 	unsigned	n_nullable:10;/* number of nullable fields */
 	unsigned	cached:1;/* TRUE if the index object is in the
 				dictionary cache */
+	unsigned	to_be_dropped:1;
+				/* TRUE if this index is marked to be
+				dropped in ha_innobase::prepare_drop_index(),
+				otherwise FALSE */
 	dict_field_t*	fields;	/* array of field descriptions */
 	UT_LIST_NODE_T(dict_index_t)
 			indexes;/* list of indexes of the table */
@@ -224,6 +230,9 @@ struct dict_index_struct{
 				index tree */
 	rw_lock_t	lock;	/* read-write lock protecting the upper levels
 				of the index tree */
+	dulint		trx_id; /* id of the transaction that created this
+				index. It can be zero which implies that
+				it was created on database startup.*/
 #ifdef UNIV_DEBUG
 	ulint		magic_n;/* magic number */
 # define DICT_INDEX_MAGIC_N	76789786
@@ -290,6 +299,14 @@ struct dict_table_struct{
 				innodb_file_per_table is defined in my.cnf;
 				in Unix this is usually /tmp/..., in Windows
 				\temp\... */
+	unsigned	version_number:32;
+				/* version number of this table definition.
+				Version number is 0 when table is created.
+				Every schema change implemented without
+				creating a new table and copying rows from
+				the old table to new table will increase this
+				number. For example adding or removing index,
+				adding or removing a column. */
 	unsigned	space:32;
 				/* space where the clustered index of the
 				table is placed */
@@ -303,6 +320,8 @@ struct dict_table_struct{
 				calls DISCARD TABLESPACE on this
 				table, and reset to FALSE in IMPORT
 				TABLESPACE */
+	unsigned	to_be_dropped:1; /* if set then this table will
+				dropped when n_mysql_handles_opened is 0 */
 	unsigned	cached:1;/* TRUE if the table object has been added
 				to the dictionary cache */
 	unsigned	flags:8;/* DICT_TF_COMPACT, ... */
@@ -406,6 +425,10 @@ struct dict_table_struct{
 				SELECT MAX(auto inc column) */
 	ib_longlong	autoinc;/* autoinc counter value to give to the
 				next inserted row */
+	/*----------------------*/
+	UT_LIST_BASE_NODE_T(row_prebuilt_t) prebuilts;
+				/* base node for the prebuilts defined
+				for the table */
 #ifdef UNIV_DEBUG
 	ulint		magic_n;/* magic number */
 # define DICT_TABLE_MAGIC_N	76333786

include/dict0types.h

@@ -9,6 +9,8 @@ Created 1/8/1996 Heikki Tuuri
 #ifndef dict0types_h
 #define dict0types_h
 
+#include "ut0list.h"
+
 typedef struct dict_sys_struct		dict_sys_t;
 typedef struct dict_col_struct		dict_col_t;
 typedef struct dict_field_struct	dict_field_t;
@@ -24,4 +26,48 @@ typedef dict_table_t			dict_cluster_t;
 typedef struct ind_node_struct		ind_node_t;
 typedef struct tab_node_struct		tab_node_t;
 
+/* Data types for dict_undo */
+union dict_undo_data_union {
+
+	dict_index_t*	index;		/* The index to be dropped */
+
+	struct	{
+	dict_table_t*	old_table;	/* All fields are required only for*/
+	dict_table_t*	tmp_table;	/*RENAME, for CREATE and DROP we */
+	dict_table_t*	new_table;	/*use only old_table */
+	}		table;
+};
+
+typedef union dict_undo_data_union dict_undo_data_t;
+
+/* During recovery these are the operations that need to be undone */
+struct dict_undo_struct {
+	ulint		op_type;	/* Discriminator one of :
+					TRX_UNDO_INDEX_CREATE_REC,
+					TRX_UNDO_TABLE_DROP_REC,
+					TRX_UNDO_TABLE_CREATE_REC,
+					TRX_UNDO_TABLE_RENAME_REC.*/
+	dict_undo_data_t
+			data;		/* Data required for UNDO */
+
+	UT_LIST_NODE_T(struct dict_undo_struct)
+			node;		/* UNDO list node */
+};
+
+typedef	struct dict_undo_struct		dict_undo_t;
+typedef UT_LIST_BASE_NODE_T(dict_undo_t) dict_undo_list_t;
+
+/* TODO: Currently this data structure is a place holder for indexes
+created by a transaction.* The REDO is a misnomer*/
+struct dict_redo_struct {
+	ulint		op_type;	/* Discriminator one of :
+					TRX_UNDO_INDEX_CREATE_REC.*/
+	dict_index_t*	index;		/* The index created.*/
+
+	UT_LIST_NODE_T(struct dict_redo_struct)
+			node;		/* REDO list node */
+};
+
+typedef	struct dict_redo_struct		dict_redo_t;
+typedef UT_LIST_BASE_NODE_T(dict_redo_t) dict_redo_list_t;
 #endif

include/mem0mem.h

@@ -73,6 +73,12 @@ heap creation. */
 Use this macro instead of the corresponding function! Macro for memory
 heap creation. */
 
+#define mem_heap_create_noninline(N)	mem_heap_create_func_noninline(\
+		(N), MEM_HEAP_DYNAMIC, __FILE__, __LINE__)
+/******************************************************************
+Use this macro instead of the corresponding function! Macro for memory
+heap creation. */
+
 #define mem_heap_create_in_buffer(N)	mem_heap_create_func(\
 		(N), MEM_HEAP_BUFFER, __FILE__, __LINE__)
 /******************************************************************
@@ -89,6 +95,12 @@ heap freeing. */
 
 #define mem_heap_free(heap) mem_heap_free_func(\
 					  (heap), __FILE__, __LINE__)
+/******************************************************************
+Use this macro instead of the corresponding function! Macro for memory
+heap freeing. */
+
+#define mem_heap_free_noninline(heap) mem_heap_free_func_noninline(\
+					  (heap), __FILE__, __LINE__)
 /*********************************************************************
 NOTE: Use the corresponding macros instead of this function. Creates a
 memory heap. For debugging purposes, takes also the file name and line as
@@ -118,6 +130,37 @@ mem_heap_free_func(
 	mem_heap_t*	heap,		/* in, own: heap to be freed */
 	const char*	file_name,	/* in: file name where freed */
 	ulint		line);		/* in: line where freed */
+/*********************************************************************
+NOTE: Use the corresponding macros instead of this function. Creates a
+memory heap. For debugging purposes, takes also the file name and line as
+arguments. */
+
+mem_heap_t*
+mem_heap_create_func_noninline(
+/*===========================*/
+					/* out, own: memory heap, NULL if
+					did not succeed (only possible for
+					MEM_HEAP_BTR_SEARCH type heaps)*/
+	ulint		n,		/* in: desired start block size,
+					this means that a single user buffer
+					of size n will fit in the block,
+					0 creates a default size block;
+					if init_block is not NULL, n tells
+					its size in bytes */
+	ulint		type,		/* in: heap type */
+	const char*	file_name,	/* in: file name where created */
+	ulint		line);		/* in: line where created */
+/*********************************************************************
+NOTE: Use the corresponding macro instead of this function. Frees the space
+occupied by a memory heap. In the debug version erases the heap memory
+blocks. */
+
+void
+mem_heap_free_func_noninline(
+/*=========================*/
+	mem_heap_t*	heap,		/* in, own: heap to be freed */
+	const char*	file_name,	/* in: file name where freed */
+	ulint		line);		/* in: line where freed */
 /*******************************************************************
 Allocates n bytes of memory from a memory heap. */
 UNIV_INLINE
@@ -131,6 +174,19 @@ mem_heap_alloc(
 	ulint		n);	/* in: number of bytes; if the heap is allowed
 				to grow into the buffer pool, this must be
 				<= MEM_MAX_ALLOC_IN_BUF */
+/*******************************************************************
+Allocates n bytes of memory from a memory heap. */
+
+void*
+mem_heap_alloc_noninline(
+/*=====================*/
+				/* out: allocated storage, NULL if did not
+				succeed (only possible for
+				MEM_HEAP_BTR_SEARCH type heaps) */
+	mem_heap_t*	heap,	/* in: memory heap */
+	ulint		n);	/* in: number of bytes; if the heap is allowed
+				to grow into the buffer pool, this must be
+				<= MEM_MAX_ALLOC_IN_BUF */
 /*********************************************************************
 Returns a pointer to the heap top. */
 UNIV_INLINE
@@ -193,6 +249,12 @@ Macro for memory buffer allocation */
 
 #define mem_alloc_noninline(N)	  mem_alloc_func_noninline(\
 					  (N), __FILE__, __LINE__)
+/******************************************************************
+Use this macro instead of the corresponding function!
+Macro for memory buffer allocation */
+
+#define mem_free_noninline(N)    mem_free_func_noninline(\
+					  (N), __FILE__, __LINE__)
 /*******************************************************************
 NOTE: Use the corresponding macro instead of this function.
 Allocates a single buffer of memory from the dynamic memory of
@@ -238,6 +300,18 @@ mem_free_func(
 	const char*	file_name,	/* in: file name where created */
 	ulint		line		/* in: line where created */
 );
+/*******************************************************************
+NOTE: Use the corresponding macro instead of this function.
+Frees a single buffer of storage from
+the dynamic memory of C compiler. Similar to free of C. */
+
+void
+mem_free_func_noninline(
+/*====================*/
+	void*		ptr,		/* in, own: buffer to be freed */
+	const char*	file_name,	/* in: file name where created */
+	ulint		line		/* in: line where created */
+);
 
 /**************************************************************************
 Duplicates a NUL-terminated string. */

include/os0file.h

@@ -729,4 +729,15 @@ os_file_get_status(
 	os_file_stat_t* stat_info);	/* information of a file in a
 					directory */
 
+#if !defined(UNIV_HOTBACKUP) && !defined(__NETWARE__)
+/*************************************************************************
+Creates a temporary file that will be deleted on close.
+This function is defined in ha_innodb.cc. */
+
+int
+innobase_mysql_tmpfile(void);
+/*========================*/
+			/* out: temporary file descriptor, or < 0 on error */
+#endif /* !UNIV_HOTBACKUP && !__NETWARE__ */
+
 #endif

include/row0ins.h

@@ -93,6 +93,13 @@ row_ins_step(
 /*=========*/
 				/* out: query thread to run next or NULL */
 	que_thr_t*	thr);	/* in: query thread */
+/***************************************************************
+Creates an entry template for each index of a table. */
+
+void
+ins_node_create_entry_list(
+/*=======================*/
+	ins_node_t*	node);	/* in: row insert node */
 
 /* Insert node structure */
 
@@ -112,6 +119,11 @@ struct ins_node_struct{
 				this should be reset to NULL */
 	UT_LIST_BASE_NODE_T(dtuple_t)
 			entry_list;/* list of entries, one for each index */
+	ulint		table_version_number;
+				/* entry_list is created for this version
+				of the table. If this version is not same
+				as table->version_number, entry_list must
+				be re-created. */
 	byte*		row_id_buf;/* buffer for the row id sys field in row */
 	dulint		trx_id;	/* trx id or the last trx which executed the
 				node */

include/row0merge.h

@@ -0,0 +1,305 @@
+/******************************************************
+Index build routines using a merge sort
+
+(c) 2005 Innobase Oy
+
+Created 13/06/2005 Jan Lindstrom
+*******************************************************/
+
+#ifndef row0merge_h
+#define row0merge_h
+
+#include "univ.i"
+#include "data0data.h"
+#include "dict0types.h"
+#include "trx0types.h"
+#include "que0types.h"
+#include "mtr0mtr.h"
+#include "rem0types.h"
+#include "rem0rec.h"
+#include "read0types.h"
+#include "btr0types.h"
+#include "row0mysql.h"
+
+/* Block size for I/O operations in merge sort */
+
+#define MERGE_BLOCK_SIZE	1048576	/* 1M */
+
+/* Intentional free space on every block */
+#define MERGE_BLOCK_SAFETY_MARGIN	128
+
+/* Enable faster index creation debug code */
+/* #define UNIV_DEBUG_INDEX_CREATE		1 */
+
+/* This block header structure is used to create linked list of the
+blocks to the disk. Every block contains one header.*/
+
+struct merge_block_header_struct {
+	ulint	n_records;		/* Number of records in the block. */
+	dulint  offset;			/* Offset of this block in the disk. */
+	dulint	next;			/* Offset to next block in the disk. */
+};
+
+typedef struct merge_block_header_struct merge_block_header_t;
+
+/* This block structure is used to hold index records in the disk
+and the memory */
+
+struct merge_block_struct {
+	merge_block_header_t	header;	/* Block header information */
+	char			data[MERGE_BLOCK_SIZE - sizeof(merge_block_header_t)];/* Data area i.e. heap */
+};
+
+typedef struct merge_block_struct merge_block_t;
+
+/* Records are stored in the memory for main memory linked list
+to this structure */
+
+struct merge_rec_struct {
+	struct merge_rec_struct *next;	/* Pointer to next record
+					in the list */
+	rec_t*		rec;		/* Record */
+};
+
+typedef struct merge_rec_struct merge_rec_t;
+
+/* This structure is head element for main memory linked list
+used for main memory linked list merge sort */
+
+struct merge_rec_list_struct {
+	merge_rec_t*	head;		/* Pointer to head of the
+					list */
+	merge_rec_t*	tail;		/* Pointer to tail of the
+					list */
+	ulint		n_records;	/* Number of records in
+					the list */
+	ulint		total_size;	/* Total size of all records in
+					the list */
+	mem_heap_t*	heap;		/* Heap where memory for this
+					list is allocated */
+};
+
+typedef struct merge_rec_list_struct merge_rec_list_t;
+
+/* Information about temporary files used in merge sort are stored
+to this structure */
+
+struct merge_file_struct {
+	os_file_t	file;			/* File descriptor */
+	dulint		offset;			/* File offset */
+	ulint		num_of_blocks;		/* Number of blocks */
+};
+
+typedef struct merge_file_struct merge_file_t;
+
+/* This structure holds parameters to thread which does a
+disk based merge sort and inserts index records */
+
+struct merge_thread_struct {
+	dict_index_t*	index;		/* in: Index to be created */
+	row_prebuilt_t*	prebuilt;	/* in: Prebuilt */
+	trx_t*		trx;		/* in: trx */
+	os_file_t	file;		/* in: File handle */
+	int		error;		/* out: error code or 0 */
+};
+
+typedef struct merge_thread_struct merge_thread_t;
+
+/* This structure holds index field definitions */
+
+struct merge_index_field_struct {
+	ulint	col_type;	/* Column type */
+	ulint	prefix_len;	/* Prefix len */
+	char*	field_name;	/* Field name */
+};
+
+typedef struct merge_index_field_struct merge_index_field_t;
+
+/* This structure holds index definitions */
+
+struct merge_index_def_struct {
+	ulint	n_fields;		/* Number of fields in index */
+	ulint	ind_type;		/* 0, DICT_UNIQUE or DICT_CLUSTERED */
+	char*	name;			/* Index name */
+	merge_index_field_t** fields;	/* Field definitions */
+};
+
+typedef struct merge_index_def_struct merge_index_def_t;
+
+/************************************************************************
+Reads clustered index of the table and create temporary files
+containing index entries for indexes to be built. */
+
+ulint
+row_merge_read_clustered_index(
+/*===========================*/
+					/* out: DB_SUCCESS if successfull,
+					or ERROR code */
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	table,		/* in: table where index is created */
+	dict_index_t**	index,		/* in: indexes to be created */
+	merge_file_t**	files,		/* in: Files where to write index
+					entries */
+	ulint		num_of_idx);	/* in: number of indexes to be
+					created */
+/************************************************************************
+Read sorted file containing index data tuples and insert these data
+data tuples to the index */
+
+ulint
+row_merge_insert_index_tuples(
+/*==========================*/
+					/* out: 0 or error number */
+	trx_t*		trx, 		/* in: transaction */
+	dict_index_t*	index,		/* in: index */
+	dict_table_t*	table,		/* in: table */
+	os_file_t	file,		/* in: file handle */
+	dulint		offset);	/* in: offset where to start
+					reading */
+/*****************************************************************
+Merge sort for linked list in the disk. */
+
+dulint
+row_merge_sort_linked_list_in_disk(
+/*===============================*/
+					/* out: offset to first block in
+					the list or ut_dulint_max in
+					case of error */
+	dict_index_t*	index,		/* in: index to be created */
+	os_file_t	file,		/* in: File handle */
+	int*		error);		/* out: 0 or error */
+
+/*************************************************************************
+Allocate and initialize memory for a merge file structure */
+
+merge_file_t*
+row_merge_create_file_structure(
+/*============================*/
+					/* out: pointer to merge file
+					structure */
+	mem_heap_t*	heap);		/* in: heap where merge file structure
+					is allocated */
+/*************************************************************************
+A thread which merge sorts given file and inserts sorted records to
+the index. */
+
+#ifndef __WIN__
+void *
+#else
+ulint
+#endif
+row_merge_sort_and_insert_thread(
+/*=============================*/
+				/* out: a dummy parameter */
+	void*	arg);		/* in: parameters */
+
+
+/*************************************************************************
+Remove a index from system tables */
+
+ulint
+row_merge_remove_index(
+/*===================*/
+				/* out: error code or DB_SUCCESS */
+	dict_index_t*	index,	/* in: index to be removed */
+	dict_table_t*	table,	/* in: table */
+	trx_t*		trx);	/* in: transaction handle */
+
+/*************************************************************************
+Print definition of a table in the dictionary */
+
+void
+row_merge_print_table(
+/*==================*/
+	dict_table_t*	table);	/* in: table */
+/*************************************************************************
+Mark all prebuilts using the table obsolete. These prebuilts are
+rebuilded later. */
+
+void
+row_merge_mark_prebuilt_obsolete(
+/*=============================*/
+
+	trx_t*		trx,		/* in: trx */
+	dict_table_t*	table);		/* in: table */
+/*************************************************************************
+Create a temporary table using a definition of the old table. You must
+lock data dictionary before calling this function. */
+
+dict_table_t*
+row_merge_create_temporary_table(
+/*=============================*/
+					/* out: new temporary table
+					definition */
+	const char*	table_name,	/* in: new table name */
+	dict_table_t*	table,		/* in: old table definition */
+	trx_t*		trx,		/* in: trx */
+	ulint*		error);		/* in:out/ error code or DB_SUCCESS */
+/*************************************************************************
+Update all prebuilts for this table */
+
+void
+row_merge_prebuilts_update(
+/*=======================*/
+
+	trx_t*		trx,		/* in: trx */
+	dict_table_t*	old_table);	/* in: old table */
+/*************************************************************************
+Create a temporary table using a definition of the old table. You must
+lock data dictionary before calling this function. */
+
+dict_table_t*
+row_merge_create_temporary_table(
+/*=============================*/
+					/* out: new temporary table
+					definition */
+	const char*	table_name,	/* in: new table name */
+	dict_table_t*	table,		/* in: old table definition */
+	trx_t*		trx,		/* in: trx */
+	ulint*		error);		/* in:out/ error code or DB_SUCCESS */
+/*************************************************************************
+Rename the indexes in the dicitionary. */
+
+ulint
+row_merge_rename_index(
+/*===================*/
+					/* out: DB_SUCCESS if all OK */
+	trx_t*		trx,		/* in: Transaction */
+	dict_table_t*	table,		/* in: Table for index */
+	dict_index_t*	index);		/* in: Index to rename */
+/*************************************************************************
+Create the index and load in to the dicitionary. */
+
+ulint
+row_merge_create_index(
+/*===================*/
+					/* out: DB_SUCCESS if all OK */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t**	index,		/* out: the instance of the index */
+	dict_table_t*	table,		/* in: the index is on this table */
+	const merge_index_def_t*	/* in: the index definition */
+			index_def);
+/*************************************************************************
+Check if a transaction can use an index.*/
+
+ibool
+row_merge_is_index_usable(
+/*======================*/
+					/* out: TRUE if index can be used by
+					the transaction else FALSE*/
+	const trx_t*	trx,		/* in: transaction */
+	const dict_index_t*		/* in: index to check */
+			index);
+/*************************************************************************
+If there are views that refer to the old table name then we "attach" to
+the new instance of the table else we drop it immediately.*/
+
+ulint
+row_merge_drop_table(
+/*=================*/
+					/* out: DB_SUCCESS if all OK else
+					error code.*/
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	table);		/* in: table instance to drop */
+#endif /* row0merge.h */
+

include/row0mysql.h

@@ -21,7 +21,7 @@ Created 9/17/2000 Heikki Tuuri
 
 extern ibool row_rollback_on_timeout;
 
-typedef struct row_prebuilt_struct row_prebuilt_t;
+/* typedef struct row_prebuilt_struct row_prebuilt_t; */
 
 /***********************************************************************
 Frees the blob heap in prebuilt when no longer needed. */
@@ -153,6 +153,14 @@ row_update_prebuilt_trx(
 	row_prebuilt_t*	prebuilt,	/* in: prebuilt struct in MySQL
 					handle */
 	trx_t*		trx);		/* in: transaction handle */
+/************************************************************************
+Update a prebuilt struct for a MySQL table handle. */
+
+void
+row_update_prebuilt(
+/*================*/
+	row_prebuilt_t*	prebuilt,	/* in: Innobase table handle */
+	dict_table_t*   table);		/* in: table */
 /*************************************************************************
 Unlocks an AUTO_INC type lock possibly reserved by trx. */
 
@@ -188,6 +196,16 @@ row_lock_table_for_mysql(
 					prebuilt->select_lock_type */
 	ulint		mode);		/* in: lock mode of table
 					(ignored if table==NULL) */
+/*************************************************************************
+Sets a table lock on the table. */
+
+int
+row_lock_table_for_merge(
+/*=====================*/
+					/* out: error code or DB_SUCCESS */
+	trx_t*		trx,		/* in: lock table for this trx */
+	dict_table_t*	table,		/* in: table to lock */
+	ulint		mode);		/* in: lock mode of table */
 
 /*************************************************************************
 Does an insert for MySQL. */
@@ -413,6 +431,19 @@ row_drop_table_for_mysql(
 	ibool		drop_db);/* in: TRUE=dropping whole database */
 
 /*************************************************************************
+Drops a table for MySQL. If the name of the dropped table ends to
+characters INNODB_MONITOR, then this also stops printing of monitor
+output by the master thread. But does not commit the transaction, this
+is required for UNDOing dictionary records during recovery.*/
+
+int
+row_drop_table_for_mysql_no_commit(
+/*===============================*/
+				/* out: error code or DB_SUCCESS */
+	const char*	name,	/* in: table name */
+	trx_t*		trx,	/* in: transaction handle */
+	ibool		drop_db);/* in: TRUE=dropping whole database */
+/*************************************************************************
 Discards the tablespace of a table which stored in an .ibd file. Discarding
 means that this function deletes the .ibd file and assigns a new table id for
 the table. Also the flag table->ibd_file_missing is set TRUE. */
@@ -451,7 +482,8 @@ row_rename_table_for_mysql(
 					/* out: error code or DB_SUCCESS */
 	const char*	old_name,	/* in: old table name */
 	const char*	new_name,	/* in: new table name */
-	trx_t*		trx);		/* in: transaction handle */
+	trx_t*		trx,		/* in: transaction handle */
+	ibool		commit);	/* in: if TRUE then commit trx */
 /*************************************************************************
 Checks a table for corruption. */
 
@@ -462,7 +494,93 @@ row_check_table_for_mysql(
 	row_prebuilt_t*	prebuilt);	/* in: prebuilt struct in MySQL
 					handle */
 #endif /* !UNIV_HOTBACKUP */
+/*************************************************************************
+Build new indexes to a table by reading a cluster index,
+creating a temporary file containing index entries, merge sorting
+these index entries and inserting sorted index entries to indexes. */
 
+ulint
+row_build_index_for_mysql(
+/*====================*/
+					/* out: 0 or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	old_table,	/* in: Table where rows are
+					read from */
+	dict_table_t*	new_table,	/* in: Table where indexes are
+					created. Note that old_table ==
+					new_table if we are creating a
+					secondary keys. */
+	dict_index_t**	index,		/* in: Indexes to be created */
+	ibool		new_primary,	/* in: new primary key
+					i.e. clustered index will be build
+					for this table */
+	ulint		num_of_keys);	/* in: Number of indexes to be
+					created */
+/*************************************************************************
+Create query graph for a index creation */
+
+ulint
+row_create_index_graph_for_mysql(
+/*=============================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: trx */
+	dict_table_t*	table,		/* in: table */
+	dict_index_t*	index);		/* in: index */
+/*************************************************************************
+Remove those indexes which were created before a error happened in
+the index build */
+
+ulint
+row_remove_indexes_for_mysql(
+/*=========================*/
+					/* out: 0 or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	table,		/* in: Table where index is created */
+	dict_index_t**	index,		/* in: Indexes to be created */
+	ulint		num_created);	/* in: Number of indexes created
+					before error and now must be removed */
+/***************************************************************************
+Writes information to an undo log about dictionary operation, create_table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_create_table_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	const char*	table_name);	/* in: table name created. */
+/***************************************************************************
+Writes information to an undo log about dictionary operation, rename_table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_create_index_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index);		/* in: index created. */
+/***************************************************************************
+Writes information to an undo log about dictionary operation, rename_table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_rename_table_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	const char*	from_table_name,/* in: rename from table name. */
+	const char*	to_table_name,	/* in: rename to table table. */
+	const char*	tmp_table_name);/* in: intermediate table name */
+/***************************************************************************
+Writes information to an undo log about dictionary operation, drop table. 
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_drop_table_dict_operation(
+/*======================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: query thread */
+	const char*	table_name);	/* in: table name dropped */
 /* A struct describing a place for an individual column in the MySQL
 row format which is presented to the table handler in ha_innobase.
 This template struct is used to speed up row transformations between
@@ -512,16 +630,18 @@ struct mysql_row_templ_struct {
 
 #define ROW_PREBUILT_ALLOCATED	78540783
 #define ROW_PREBUILT_FREED	26423527
+#define ROW_PREBUILT_OBSOLETE	12367541
 
 /* A struct for (sometimes lazily) prebuilt structures in an Innobase table
 handle used within MySQL; these are used to save CPU time. */
 
 struct row_prebuilt_struct {
 	ulint		magic_n;	/* this magic number is set to
-					ROW_PREBUILT_ALLOCATED when created
-					and to ROW_PREBUILT_FREED when the
-					struct has been freed; used in
-					debugging */
+					ROW_PREBUILT_ALLOCATED when created,
+					or ROW_PREBUILT_FREED when the
+					struct has been freed or
+					ROW_PREBUILT_OBSOLETE when struct
+					needs a rebuilt */
 	dict_table_t*	table;		/* Innobase table handle */
 	trx_t*		trx;		/* current transaction handle */
 	ibool		sql_stat_start;	/* TRUE when we start processing of
@@ -668,10 +788,12 @@ struct row_prebuilt_struct {
 					fetched row in fetch_cache */
 	ulint		n_fetch_cached;	/* number of not yet fetched rows
 					in fetch_cache */
-	mem_heap_t*	blob_heap;	/* in SELECTS BLOB fie lds are copied
+	mem_heap_t*	blob_heap;	/* in SELECTS BLOB fields are copied
 					to this heap */
 	mem_heap_t*	old_vers_heap;	/* memory heap where a previous
 					version is built in consistent read */
+	UT_LIST_NODE_T(row_prebuilt_t)	prebuilts;
+					/* list node of table->prebuilts */
 	ulint		magic_n2;	/* this should be the same as
 					magic_n */
 };

include/row0row.h

@@ -52,15 +52,16 @@ row_get_rec_roll_ptr(
 	dict_index_t*	index,	/* in: clustered index */
 	const ulint*	offsets);/* in: rec_get_offsets(rec, index) */
 /*********************************************************************
-When an insert to a table is performed, this function builds the entry which
-has to be inserted to an index on the table. */
+When an insert or purge to a table is performed, this function builds
+the entry to be inserted into or purged from an index on the table. */
 
 dtuple_t*
 row_build_index_entry(
 /*==================*/
-				/* out: index entry which should be inserted */
-	const dtuple_t*	row,	/* in: row which should be inserted to the
-				table */
+				/* out: index entry which should be
+				inserted or purged */
+	const dtuple_t*	row,	/* in: row which should be
+				inserted or purged */
 	row_ext_t*	ext,	/* in: externally stored column prefixes,
 				or NULL */
 	dict_index_t*	index,	/* in: index on the table */

include/row0types.h

@@ -36,4 +36,6 @@ typedef	struct purge_node_struct purge_node_t;
 
 typedef struct row_ext_struct row_ext_t;
 
+typedef struct row_prebuilt_struct row_prebuilt_t;
+
 #endif

include/row0uins.h

@@ -28,6 +28,15 @@ row_undo_ins(
 				/* out: DB_SUCCESS */
 	undo_node_t*	node);	/* in: row undo node */
 
+/***************************************************************
+Parses the rec_type undo record. */
+
+byte*
+row_undo_ins_parse_rec_type_and_table_id(
+/*=====================================*/
+					/* out: ptr to next field to parse */
+	undo_node_t*	node,		/* in: row undo node */
+	dulint*		table_id);	/* out: table id */
 
 #ifndef UNIV_NONINL
 #include "row0uins.ic"

include/row0undo.h

@@ -51,6 +51,24 @@ row_undo_step(
 /*==========*/
 				/* out: query thread to run next or NULL */
 	que_thr_t*	thr);	/* in: query thread */
+/***************************************************************
+Build the dict undo list*/
+
+ulint
+row_undo_build_dict_undo_list(
+/*==========================*/
+				/* out: DB_SUCCESS or error code */
+	undo_node_t*	node);	/* in: row undo node */
+
+/***************************************************************
+Undo or redo a dictionary change */
+
+ulint
+row_undo_dictionary(
+/*================*/
+				/* out: DB_SUCCESS or error code */
+	trx_t*		trx,	/* in: the transaction */
+	dict_undo_t*	dict_undo); /* in: dict op to undo */
 
 /* A single query thread will try to perform the undo for all successive
 versions of a clustered index record, if the transaction has modified it
@@ -78,6 +96,20 @@ struct undo_node_struct{
 	dulint		undo_no;/* undo number of the record */
 	ulint		rec_type;/* undo log record type: TRX_UNDO_INSERT_REC,
 				... */
+	ulint		rec_sub_type; /* undo log record subtype:
+				used when rec_type is
+				TRX_UNDO_DICTIONARY_REC or 0*/
+	char*		new_table_name;/* table name in
+				TRX_UNDO_TABLE_CREATE_REC or
+				TRX_UNDO_TABLE_RENAME_REC or
+				TRX_UNDO_TABLE_DROP_REC or NULL */
+	char*		old_table_name;/* old table name in
+				TRX_UNDO_TABLE_RENAME_REC or NULL */
+	char*		tmp_table_name; /* intermediate table name used
+				during rename & drop operation in
+				ha_innobase::add_index().*/
+	dulint		index_id;/* index id in TRX_UNDO_INDEX_CREATE_REC
+				or ut_dulint_zero */
 	dulint		new_roll_ptr; /* roll ptr to restore to clustered index
 				record */
 	dulint		new_trx_id; /* trx id to restore to clustered index

include/trx0rec.h

@@ -60,6 +60,17 @@ trx_undo_rec_get_undo_no(
 /*=====================*/
 					/* out: undo no */
 	trx_undo_rec_t*	undo_rec);	/* in: undo log record */
+/**************************************************************************
+ * Returns the start of the undo record data area. */
+
+UNIV_INLINE
+byte*
+trx_undo_rec_get_ptr(
+/*==================*/
+					/* out: compiler info */
+	trx_undo_rec_t* undo_rec,       /* in: undo log record */
+	dulint          undo_no);        /* in: undo no read from node */
+
 /**************************************************************************
 Reads from an undo log record the general parameters. */
 
@@ -201,6 +212,31 @@ trx_undo_report_row_operation(
 					inserted undo log record,
 					ut_dulint_zero if BTR_NO_UNDO_LOG
 					flag was specified */
+/***************************************************************************
+Writes information to an undo log about dictionary operation e.g.
+rename_table, create_table, create_index, drop table. This information
+is used in a rollback of the transaction. */
+
+ulint
+trx_undo_report_dict_operation(
+/*===========================*/
+					/* out: DB_SUCCESS or error code */
+	ulint		op_type,	/* in: TRX_UNDO_TABLE_CREATE_OP,
+					TRX_UNDO_TABLE_RENAME_OP,
+					TRX_UNDO_TABLE_DROP_OP, or
+					TRX_UNDO_INDEX_CREATE_OP */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index,		/* in:
+					if TRX_UNDO_INDEX_CREATE_OP
+					index to be created*/
+	const char*	table_name,	/* in: table name or NULL, used in
+					create table, rename table and
+					drop table*/
+	const char*	old_table_name,	/* in: old table name or NULL.
+					used in rename table */
+	const char*	tmp_table_name,	/* in: the intermediate name used */
+	dulint*		roll_ptr);	/* out: rollback pointer to the
+					inserted undo log record */
 /**********************************************************************
 Copies an undo record to heap. This function can be called if we know that
 the undo log record exists. */
@@ -279,6 +315,7 @@ trx_undo_parse_erase_page_end(
 /* Types of an undo log record: these have to be smaller than 16, as the
 compilation info multiplied by 16 is ORed to this value in an undo log
 record */
+
 #define	TRX_UNDO_INSERT_REC	11	/* fresh insert into clustered index */
 #define	TRX_UNDO_UPD_EXIST_REC	12	/* update of a non-delete-marked
 					record */
@@ -287,6 +324,9 @@ record */
 					fields of the record can change */
 #define	TRX_UNDO_DEL_MARK_REC	14	/* delete marking of a record; fields
 					do not change */
+#define	TRX_UNDO_DICTIONARY_REC 15	/* dictionary operation, detailed
+					operation type can be found from
+					undo log records subtype */
 #define	TRX_UNDO_CMPL_INFO_MULT	16	/* compilation info is multiplied by
 					this and ORed to the type above */
 #define	TRX_UNDO_UPD_EXTERN	128	/* This bit can be ORed to type_cmpl
@@ -294,9 +334,21 @@ record */
 					storage fields: used by purge to
 					free the external storage */
 
-/* Operation type flags used in trx_undo_report_row_operation */
+/* Operation type flags used in trx_undo_report_row_operation
+and trx_undo_report_dict_operation */
 #define	TRX_UNDO_INSERT_OP		1
 #define	TRX_UNDO_MODIFY_OP		2
+#define	TRX_UNDO_INDEX_CREATE_OP	3	/* alter table add index */
+#define	TRX_UNDO_TABLE_CREATE_OP	4	/* create table */
+#define	TRX_UNDO_TABLE_RENAME_OP	5	/* rename table */
+#define	TRX_UNDO_TABLE_DROP_OP		6	/* drop table */
+
+/* Subtypes for dictionary operation */
+#define	TRX_UNDO_NULL_REC		0	/* No subtype */
+#define	TRX_UNDO_INDEX_CREATE_REC	1	/* index create record */
+#define	TRX_UNDO_TABLE_CREATE_REC	2	/* table create record */
+#define	TRX_UNDO_TABLE_RENAME_REC	3	/* table rename record */
+#define	TRX_UNDO_TABLE_DROP_REC		4	/* table drop record */
 
 #ifndef UNIV_NONINL
 #include "trx0rec.ic"

include/trx0rec.ic

@@ -63,6 +63,20 @@ trx_undo_rec_get_undo_no(
 	return(mach_dulint_read_much_compressed(ptr));
 }
 
+/**************************************************************************
+Returns the start of the undo record data area. */
+UNIV_INLINE
+byte*
+trx_undo_rec_get_ptr(
+/*=================*/
+					/* out: compiler info */
+	trx_undo_rec_t*	undo_rec,	/* in: undo log record */
+	dulint		undo_no)	/* in: undo no read from node */
+{
+	return (((byte*) undo_rec) + 3
+		+ mach_dulint_get_much_compressed_size(undo_no));
+}
+
 /***************************************************************************
 Copies the undo record to the heap. */
 UNIV_INLINE

include/trx0trx.h

@@ -450,8 +450,19 @@ struct trx_struct{
 					table.	This is a hint that the table
 					may need to be dropped in crash
 					recovery. */
-	dulint		table_id;	/* table id if the preceding field is
-					TRUE */
+	dict_undo_list_t*
+			dict_undo_list;	/* List of undo records are created
+					during recovery.*/
+	dict_redo_list_t*
+			dict_redo_list;	/* List of indexes created by this
+					transaction.*/
+	ulint		(*sync_cb)(trx_t*, ibool);
+					/* Transaction synchronization
+					callback, if ibool parameter is TRUE
+					then callback invoked for commit else
+					rollback.*/
+	dulint		table_id;	/* Table to drop iff dict_operation
+					is TRUE.*/
 	/*------------------------------*/
 	int		active_trans;	/* 1 - if a transaction in MySQL
 					is active. 2 - if prepare_commit_mutex
@@ -567,6 +578,9 @@ struct trx_struct{
 	void*		error_info;	/* if the error number indicates a
 					duplicate key error, a pointer to
 					the problematic index is stored here */
+	ulint		error_key_num;	/* if the index creation fails to a
+					duplicate key error, a mysql key
+					number of that index is stored here */
 	sess_t*		sess;		/* session of the trx, NULL if none */
 	ulint		que_state;	/* TRX_QUE_RUNNING, TRX_QUE_LOCK_WAIT,
 					... */

lock/lock0lock.c

@@ -3678,7 +3678,9 @@ lock_table_enqueue_waiting(
 
 	trx = thr_get_trx(thr);
 
-	if (trx->dict_operation) {
+	/* We have little choice here during index merge operations, and so
+	we suppress the printing of the message.*/
+	if (trx->dict_operation && *table->name != TEMP_TABLE_PREFIX) {
 		ut_print_timestamp(stderr);
 		fputs("  InnoDB: Error: a table lock wait happens"
 		      " in a dictionary operation!\n"

mem/mem0mem.c

@@ -101,6 +101,21 @@ mem_alloc_func_noninline(
 	return(mem_alloc_func(n, file_name, line));
 }
 
+/*******************************************************************
+NOTE: Use the corresponding macro instead of this function.
+Frees a single buffer of storage from
+the dynamic memory of C compiler. Similar to free of C. */
+
+void
+mem_free_func_noninline(
+/*====================*/
+	void*		ptr,		/* in, own: buffer to be freed */
+	const char*	file_name,	/* in: file name where created */
+	ulint		line)		/* in: line where created */
+{
+	return(mem_free_func(ptr, file_name, line));
+}
+
 /**************************************************************************
 Duplicates a NUL-terminated string, allocated from a memory heap. */
 
@@ -566,3 +581,60 @@ mem_validate_all_blocks(void)
 	mem_pool_mutex_exit();
 }
 #endif
+
+/*******************************************************************
+Allocates n bytes of memory from a memory heap. */
+
+void*
+mem_heap_alloc_noninline(
+/*=====================*/
+				/* out: allocated storage, NULL if did not
+				succeed (only possible for
+				MEM_HEAP_BTR_SEARCH type heaps) */
+	mem_heap_t*	heap,	/* in: memory heap */
+	ulint		n)	/* in: number of bytes; if the heap is allowed
+				to grow into the buffer pool, this must be
+				<= MEM_MAX_ALLOC_IN_BUF */
+{
+	return (mem_heap_alloc(heap, n));
+}
+
+/*********************************************************************
+NOTE: Use the corresponding macros instead of this function. Creates a
+memory heap. For debugging purposes, takes also the file name and line as
+argument. */
+
+mem_heap_t*
+mem_heap_create_func_noninline(
+/*===========================*/
+					/* out, own: memory heap, NULL if
+					did not succeed (only possible for
+					MEM_HEAP_BTR_SEARCH type heaps)*/
+	ulint		n,		/* in: desired start block size,
+					this means that a single user buffer
+					of size n will fit in the block,
+					0 creates a default size block;
+					if init_block is not NULL, n tells
+					its size in bytes */
+	ulint		type,		/* in: heap type */
+	const char*	file_name,	/* in: file name where created */
+	ulint		line)		/* in: line where created */
+{
+	return(mem_heap_create_func(n, type, file_name, line));
+}
+
+/*********************************************************************
+NOTE: Use the corresponding macro instead of this function. Frees the space
+occupied by a memory heap. In the debug version erases the heap memory
+blocks. */
+
+void
+mem_heap_free_func_noninline(
+/*=========================*/
+	mem_heap_t*	heap,		/* in, own: heap to be freed */
+	const char*	file_name __attribute__((unused)),
+					/* in: file name where freed */
+	ulint		line  __attribute__((unused)))
+{
+	mem_heap_free_func(heap, file_name, line);
+}

mysql-test/innodb-index.result

@@ -0,0 +1,974 @@
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (5,5,'oo','oo'),(4,4,'tr','tr'),(3,4,'ad','ad'),(2,3,'ak','ak');
+commit;
+alter table t1 add index b (b), add index b (b);
+ERROR 42000: Duplicate key name 'b'
+alter table t1 add index (b,b);
+ERROR 42S21: Duplicate column name 'b'
+alter table t1 add index d2 (d);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `d2` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	d2	23	NULL	4	
+select * from t1 order by d;
+a	b	c	d
+3	4	ad	ad
+2	3	ak	ak
+5	5	oo	oo
+4	4	tr	tr
+alter table t1 add unique index (b);
+ERROR 23000: Duplicate entry '0' for key 'b'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `d2` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 add index (b);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `d2` (`d`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 add unique index (c), add index (d);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `c` (`c`),
+  KEY `d2` (`d`),
+  KEY `b` (`b`),
+  KEY `d` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	11	NULL	4	
+select * from t1 order by c;
+a	b	c	d
+3	4	ad	ad
+2	3	ak	ak
+5	5	oo	oo
+4	4	tr	tr
+alter table t1 drop index b, add index (b);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `c` (`c`),
+  KEY `d2` (`d`),
+  KEY `d` (`d`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+insert into t1 values(6,1,'ggg','ggg');
+select * from t1;
+a	b	c	d
+2	3	ak	ak
+3	4	ad	ad
+4	4	tr	tr
+5	5	oo	oo
+6	1	ggg	ggg
+select * from t1 order by b;
+a	b	c	d
+6	1	ggg	ggg
+2	3	ak	ak
+3	4	ad	ad
+4	4	tr	tr
+5	5	oo	oo
+select * from t1 order by c;
+a	b	c	d
+3	4	ad	ad
+2	3	ak	ak
+6	1	ggg	ggg
+5	5	oo	oo
+4	4	tr	tr
+select * from t1 order by d;
+a	b	c	d
+3	4	ad	ad
+2	3	ak	ak
+6	1	ggg	ggg
+5	5	oo	oo
+4	4	tr	tr
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	5	NULL	5	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	11	NULL	5	
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	d2	23	NULL	5	
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `c` (`c`),
+  KEY `d2` (`d`),
+  KEY `d` (`d`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,3,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add index (c(2));
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `c` (`c`(2))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 add unique index (d(10));
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `d` (`d`(10)),
+  KEY `c` (`c`(2))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+insert into t1 values(5,1,'ggg','ggg');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+5	1	ggg	ggg
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+5	1	ggg	ggg
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+5	1	ggg	ggg
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+5	1	ggg	ggg
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `d` (`d`(10)),
+  KEY `c` (`c`(2))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 drop index d;
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+5	1	ggg	ggg
+8	9	fff	fff
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+5	1	ggg	ggg
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+5	1	ggg	ggg
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	3	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+5	1	ggg	ggg
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `c` (`c`(2))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add unique index (b,c);
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	16	NULL	5	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `b` (`b`,`c`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 add index (b,c);
+insert into t1 values(11,11,'kkk','kkk');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	16	NULL	6	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `b` (`b`,`c`),
+  KEY `b_2` (`b`,`c`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+alter table t1 add unique index (c,d);
+insert into t1 values(13,13,'yyy','aaa');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+13	13	yyy	aaa
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+13	13	yyy	aaa
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+13	13	yyy	aaa
+select * from t1 order by d;
+a	b	c	d
+13	13	yyy	aaa
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+11	11	kkk	kkk
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	16	NULL	7	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	34	NULL	7	
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	7	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `b` (`b`,`c`),
+  UNIQUE KEY `c` (`c`,`d`),
+  KEY `b_2` (`b`,`c`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int not null, c int, primary key (a), key (b)) engine = innodb;
+create table t3(a int not null, c int not null, d int, primary key (a), key (c)) engine = innodb;
+create table t4(a int not null, d int not null, e int, primary key (a), key (d)) engine = innodb;
+create table t2(a int not null, b int not null, c int not null, d int not null, e int,
+primary key (a), foreign key (b) references t1(b), foreign key (c) references t3(c),
+foreign key (d) references t4(d)) engine = innodb;
+alter table t1 drop index b;
+ERROR HY000: Cannot drop index 'b': needed in a foreign key constraint
+alter table t3 drop index c;
+ERROR HY000: Cannot drop index 'c': needed in a foreign key constraint
+alter table t4 drop index d;
+ERROR HY000: Cannot drop index 'd': needed in a foreign key constraint
+alter table t2 drop index b;
+ERROR HY000: Cannot drop index 'b': needed in a foreign key constraint
+alter table t2 drop index b, drop index c, drop index d;
+ERROR HY000: Cannot drop index 'b': needed in a foreign key constraint
+set foreign_key_checks=0;
+insert into t1 values (1,1,1);
+insert into t3 values (1,1,1);
+insert into t4 values (1,1,1);
+insert into t2 values (1,1,1,1,1);
+commit;
+alter table t2 drop index b, add index (b);
+show create table t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `a` int(11) NOT NULL,
+  `b` int(11) NOT NULL,
+  `c` int(11) NOT NULL,
+  `d` int(11) NOT NULL,
+  `e` int(11) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `c` (`c`),
+  KEY `d` (`d`),
+  KEY `b` (`b`),
+  CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`b`),
+  CONSTRAINT `t2_ibfk_2` FOREIGN KEY (`c`) REFERENCES `t3` (`c`),
+  CONSTRAINT `t2_ibfk_3` FOREIGN KEY (`d`) REFERENCES `t4` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+set foreign_key_checks=1;
+set foreign_key_checks=0;
+drop table if exists t1,t2,t3,t4;
+set foreign_key_checks=1;
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) 
+engine = innodb default charset=utf8;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add unique index (b);
+ERROR 23000: Duplicate entry '0' for key 'b'
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8
+alter table t1 add index (b);
+insert into t1 values(10,10,'kkk','iii');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	5	NULL	6	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8
+alter table t1 add unique index (c), add index (d);
+insert into t1 values(11,11,'aaa','mmm');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+11	11	aaa	mmm
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+11	11	aaa	mmm
+select * from t1 order by c;
+a	b	c	d
+11	11	aaa	mmm
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	kkk	iii
+11	11	aaa	mmm
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	5	NULL	7	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	31	NULL	7	
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	d	63	NULL	7	
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `c` (`c`),
+  KEY `b` (`b`),
+  KEY `d` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+drop table t1;
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) 
+engine = innodb default charset=ucs2;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add unique index (b);
+ERROR 23000: Duplicate entry '0' for key 'b'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=ucs2
+alter table t1 add index (b);
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by c;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	5	NULL	5	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	Using filesort
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=ucs2
+alter table t1 add unique index (c), add index (d);
+insert into t1 values(10,10,'aaa','kkk');
+select * from t1;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	aaa	kkk
+select * from t1 order by b;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	aaa	kkk
+select * from t1 order by c;
+a	b	c	d
+10	10	aaa	kkk
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+select * from t1 order by d;
+a	b	c	d
+1	1	ab	ab
+2	2	ac	ac
+3	2	ad	ad
+4	4	afe	afe
+8	9	fff	fff
+10	10	aaa	kkk
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	5	NULL	6	
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	21	NULL	6	
+explain select * from t1 order by d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	d	43	NULL	6	
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `c` (`c`),
+  KEY `b` (`b`),
+  KEY `d` (`d`)
+) ENGINE=InnoDB DEFAULT CHARSET=ucs2
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+drop table t1;
+create table t1(a int not null, b int) engine = innodb;
+insert into t1 values (1,1),(1,1),(1,1),(1,1);
+alter table t1 add unique index (a);
+ERROR 23000: Duplicate entry '0' for key 'a'
+alter table t1 add unique index (b);
+ERROR 23000: Duplicate entry '0' for key 'b'
+alter table t1 add unique index (a), add unique index(b);
+ERROR 23000: Duplicate entry '0' for key 'a'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, c int not null,b int, primary key(a), unique key(c), key(b)) engine = innodb;
+alter table t1 drop index c, drop index b;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int, primary key(a)) engine = innodb;
+alter table t1 add index (b);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `b` (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,3,'ac','ac'),(4,4,'afe','afe');
+alter table t1 add unique index (b), add unique index (c), add unique index (d);
+ERROR 23000: Duplicate entry '' for key 'c'
+alter table t1 add unique index (b), add index (d), add unique index (c);
+ERROR 23000: Duplicate entry '' for key 'c'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) DEFAULT NULL,
+  `c` char(10) DEFAULT NULL,
+  `d` varchar(20) DEFAULT NULL,
+  PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+drop table t1;
+create table t1(a int not null, b int not null, c int, primary key (a), key(c)) engine=innodb;
+insert into t1 values (5,1,5),(4,2,4),(3,3,3),(2,4,2),(1,5,1);
+alter table t1 add unique index (b);
+insert into t1 values (10,20,20),(11,19,19),(12,18,18),(13,17,17);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) NOT NULL,
+  `c` int(11) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  UNIQUE KEY `b` (`b`),
+  KEY `c` (`c`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+explain select * from t1 order by c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	c	5	NULL	9	
+explain select * from t1 order by a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	4	NULL	9	
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	4	NULL	9	
+select * from t1 order by a;
+a	b	c
+1	5	1
+2	4	2
+3	3	3
+4	2	4
+5	1	5
+10	20	20
+11	19	19
+12	18	18
+13	17	17
+select * from t1 order by b;
+a	b	c
+5	1	5
+4	2	4
+3	3	3
+2	4	2
+1	5	1
+13	17	17
+12	18	18
+11	19	19
+10	20	20
+select * from t1 order by c;
+a	b	c
+1	5	1
+2	4	2
+3	3	3
+4	2	4
+5	1	5
+13	17	17
+12	18	18
+11	19	19
+10	20	20
+drop table t1;
+create table t1(a int not null, b int not null) engine=innodb;
+insert into t1 values (1,1);
+alter table t1 add primary key(b);
+insert into t1 values (2,2);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` int(11) NOT NULL,
+  PRIMARY KEY (`b`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+select * from t1;
+a	b
+1	1
+2	2
+explain select * from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
+explain select * from t1 order by a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	Using filesort
+explain select * from t1 order by b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	4	NULL	2	
+checksum table t1;
+Table	Checksum
+test.t1	582702641
+drop table t1;
+create table t1(a int not null) engine=innodb;
+insert into t1 values (1);
+alter table t1 add primary key(a);
+insert into t1 values (2);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+commit;
+select * from t1;
+a
+1
+2
+explain select * from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	4	NULL	2	Using index
+explain select * from t1 order by a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	4	NULL	2	Using index
+checksum table t1;
+Table	Checksum
+test.t1	1531596814
+drop table t1;
+create table t1(a int, b blob,c text) engine=innodb default charset = utf8;
+insert into t1 values (1,repeat('jejdkrun87',220),repeat('jejdkrun87',440));
+insert into t1 values (2,repeat('adfd72nh9k',440),repeat('adfd72nh9k',1100));
+checksum table t1;
+Table	Checksum
+test.t1	1121933170
+alter table t1 add primary key (a), add key (b(20));
+checksum table t1;
+Table	Checksum
+test.t1	335046842
+insert into t1 values (3,repeat('adfdpplkeock',440),repeat('adfdpplkeock',1100));
+insert into t1 values (4,repeat('adfdijnmnb78k',440),repeat('adfdijnmnb78k',1100));
+insert into t1 values (5,repeat('adfdijn0loKNHJik',440),repeat('adfdijn0loKNHJik',1100));
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL DEFAULT '0',
+  `b` blob,
+  `c` text,
+  PRIMARY KEY (`a`),
+  KEY `b` (`b`(20))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+explain select * from t1 where b like 'adfd%';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	b	b	23	NULL	2	Using where
+checksum table t1;
+Table	Checksum
+test.t1	1008226368
+drop table t1;

mysql-test/innodb-index.test

@@ -0,0 +1,282 @@
+-- source include/have_innodb.inc
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (5,5,'oo','oo'),(4,4,'tr','tr'),(3,4,'ad','ad'),(2,3,'ak','ak');
+commit;
+--error 1061
+alter table t1 add index b (b), add index b (b);
+--error 1060
+alter table t1 add index (b,b);
+alter table t1 add index d2 (d);
+show create table t1;
+explain select * from t1 order by d;
+select * from t1 order by d;
+--error 1582
+alter table t1 add unique index (b);
+show create table t1;
+alter table t1 add index (b);
+show create table t1;
+alter table t1 add unique index (c), add index (d);
+show create table t1;
+explain select * from t1 order by c;
+select * from t1 order by c;
+alter table t1 drop index b, add index (b);
+show create table t1;
+insert into t1 values(6,1,'ggg','ggg');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,3,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add index (c(2));
+show create table t1;
+alter table t1 add unique index (d(10));
+show create table t1;
+insert into t1 values(5,1,'ggg','ggg');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 drop index d;
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+alter table t1 add unique index (b,c);
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 add index (b,c);
+insert into t1 values(11,11,'kkk','kkk');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 add unique index (c,d);
+insert into t1 values(13,13,'yyy','aaa');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int not null, c int, primary key (a), key (b)) engine = innodb;
+create table t3(a int not null, c int not null, d int, primary key (a), key (c)) engine = innodb;
+create table t4(a int not null, d int not null, e int, primary key (a), key (d)) engine = innodb;
+create table t2(a int not null, b int not null, c int not null, d int not null, e int,
+primary key (a), foreign key (b) references t1(b), foreign key (c) references t3(c),
+foreign key (d) references t4(d)) engine = innodb;
+--error 1542
+alter table t1 drop index b;
+--error 1542
+alter table t3 drop index c;
+--error 1542
+alter table t4 drop index d;
+--error 1542
+alter table t2 drop index b;
+--error 1542
+alter table t2 drop index b, drop index c, drop index d;
+set foreign_key_checks=0;
+insert into t1 values (1,1,1);
+insert into t3 values (1,1,1);
+insert into t4 values (1,1,1);
+insert into t2 values (1,1,1,1,1);
+commit;
+alter table t2 drop index b, add index (b);
+show create table t2;
+set foreign_key_checks=1;
+
+set foreign_key_checks=0;
+--disable_warnings
+drop table if exists t1,t2,t3,t4;
+--enable_warnings
+set foreign_key_checks=1;
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) 
+engine = innodb default charset=utf8;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+--error 1582
+alter table t1 add unique index (b);
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 add index (b);
+insert into t1 values(10,10,'kkk','iii');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 add unique index (c), add index (d);
+insert into t1 values(11,11,'aaa','mmm');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+check table t1;
+drop table t1;
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) 
+engine = innodb default charset=ucs2;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
+commit;
+--error 1582
+alter table t1 add unique index (b);
+show create table t1;
+alter table t1 add index (b);
+insert into t1 values(8,9,'fff','fff');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+alter table t1 add unique index (c), add index (d);
+insert into t1 values(10,10,'aaa','kkk');
+select * from t1;
+select * from t1 order by b;
+select * from t1 order by c;
+select * from t1 order by d;
+explain select * from t1 order by b;
+explain select * from t1 order by c;
+explain select * from t1 order by d;
+show create table t1;
+check table t1;
+drop table t1;
+
+create table t1(a int not null, b int) engine = innodb;
+insert into t1 values (1,1),(1,1),(1,1),(1,1);
+--error 1582
+alter table t1 add unique index (a);
+--error 1582
+alter table t1 add unique index (b);
+--error 1582
+alter table t1 add unique index (a), add unique index(b);
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, c int not null,b int, primary key(a), unique key(c), key(b)) engine = innodb;
+alter table t1 drop index c, drop index b;
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int, primary key(a)) engine = innodb;
+alter table t1 add index (b);
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb;
+insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,3,'ac','ac'),(4,4,'afe','afe');
+--error 1582
+alter table t1 add unique index (b), add unique index (c), add unique index (d);
+--error 1582
+alter table t1 add unique index (b), add index (d), add unique index (c);
+show create table t1;
+drop table t1;
+
+create table t1(a int not null, b int not null, c int, primary key (a), key(c)) engine=innodb;
+insert into t1 values (5,1,5),(4,2,4),(3,3,3),(2,4,2),(1,5,1);
+alter table t1 add unique index (b);
+insert into t1 values (10,20,20),(11,19,19),(12,18,18),(13,17,17);
+show create table t1;
+check table t1;
+explain select * from t1 order by c;
+explain select * from t1 order by a;
+explain select * from t1 order by b;
+select * from t1 order by a;
+select * from t1 order by b;
+select * from t1 order by c;
+drop table t1;
+
+create table t1(a int not null, b int not null) engine=innodb;
+insert into t1 values (1,1);
+alter table t1 add primary key(b);
+insert into t1 values (2,2);
+show create table t1;
+check table t1;
+select * from t1;
+explain select * from t1;
+explain select * from t1 order by a;
+explain select * from t1 order by b;
+checksum table t1;
+drop table t1;
+
+create table t1(a int not null) engine=innodb;
+insert into t1 values (1);
+alter table t1 add primary key(a);
+insert into t1 values (2);
+show create table t1;
+check table t1;
+commit;
+select * from t1;
+explain select * from t1;
+explain select * from t1 order by a;
+checksum table t1;
+drop table t1;
+
+create table t1(a int, b blob,c text) engine=innodb default charset = utf8;
+insert into t1 values (1,repeat('jejdkrun87',220),repeat('jejdkrun87',440));
+insert into t1 values (2,repeat('adfd72nh9k',440),repeat('adfd72nh9k',1100));
+checksum table t1;
+alter table t1 add primary key (a), add key (b(20));
+checksum table t1;
+insert into t1 values (3,repeat('adfdpplkeock',440),repeat('adfdpplkeock',1100));
+insert into t1 values (4,repeat('adfdijnmnb78k',440),repeat('adfdijnmnb78k',1100));
+insert into t1 values (5,repeat('adfdijn0loKNHJik',440),repeat('adfdijn0loKNHJik',1100));
+show create table t1;
+check table t1;
+explain select * from t1 where b like 'adfd%';
+checksum table t1;
+drop table t1;

mysql-test/innodb.test

@@ -1095,7 +1095,7 @@ show create table t2;
 create index id2 on t2 (id);
 show create table t2;
 drop index id2 on t2;
---error 1025,1025
+--error 1540,1540
 drop index id on t2;
 show create table t2;
 drop table t2;

os/os0file.c

@@ -497,17 +497,6 @@ os_io_init_simple(void)
 	}
 }
 
-#if !defined(UNIV_HOTBACKUP) && !defined(__NETWARE__)
-/*************************************************************************
-Creates a temporary file that will be deleted on close.
-This function is defined in ha_innodb.cc. */
-
-int
-innobase_mysql_tmpfile(void);
-/*========================*/
-			/* out: temporary file descriptor, or < 0 on error */
-#endif /* !UNIV_HOTBACKUP && !__NETWARE__ */
-
 /***************************************************************************
 Creates a temporary file.  This function is like tmpfile(3), but
 the temporary file is created in the MySQL temporary directory.

pars/pars0grm.h

@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 1.875d.  */
+/* A Bison parser, made by GNU Bison 2.0.  */
 
 /* Skeleton parser for Yacc-like parsing with Bison,
    Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.

que/que0que.c

@@ -336,6 +336,9 @@ que_fork_start_command(
 
 	fork->last_sel_node = NULL;
 
+	suspended_thr = NULL;
+	completed_thr = NULL;
+
 	/* Choose the query thread to run: usually there is just one thread,
 	but in a parallelized select, which necessarily is non-scrollable,
 	there may be several to choose from */

row/Makefile.am

@@ -17,7 +17,7 @@ include ../include/Makefile.i
 
 noinst_LIBRARIES =	librow.a
 
-librow_a_SOURCES =	row0ext.c\
+librow_a_SOURCES =	row0ext.c row0merge.c\
 			row0ins.c row0mysql.c row0purge.c row0row.c row0sel.c\
 			row0uins.c row0umod.c row0undo.c row0upd.c row0vers.c
 

row/row0ins.c

@@ -103,7 +103,7 @@ ins_node_create(
 
 /***************************************************************
 Creates an entry template for each index of a table. */
-static
+
 void
 ins_node_create_entry_list(
 /*=======================*/

row/row0mysql.c

@@ -25,12 +25,15 @@ Created 9/17/2000 Heikki Tuuri
 #include "dict0boot.h"
 #include "trx0roll.h"
 #include "trx0purge.h"
+#include "trx0rec.h"
+#include "trx0undo.h"
 #include "lock0lock.h"
 #include "rem0cmp.h"
 #include "log0log.h"
 #include "btr0sea.h"
 #include "fil0fil.h"
 #include "ibuf0ibuf.h"
+#include "row0merge.h"
 
 /* A dummy variable used to fool the compiler */
 ibool	row_mysql_identically_false	= FALSE;
@@ -79,6 +82,9 @@ row_mysql_is_system_table(
 }
 #endif /* !UNIV_HOTBACKUP */
 
+static ibool row_add_table_to_background_drop_list(dict_table_t* table);
+/*====================================================================*/
+
 /***********************************************************************
 Delays an INSERT, DELETE or UPDATE operation if the purge is lagging. */
 static
@@ -548,7 +554,6 @@ handle_new_error:
 		      "InnoDB: http://dev.mysql.com/doc/refman/5.1/en/"
 		      "forcing-recovery.html"
 		      " for help.\n", stderr);
-
 	} else {
 		fprintf(stderr, "InnoDB: unknown error code %lu\n",
 			(ulong) err);
@@ -656,9 +661,39 @@ row_create_prebuilt(
 
 	prebuilt->old_vers_heap = NULL;
 
+	UT_LIST_ADD_LAST(prebuilts, table->prebuilts, prebuilt);
+
 	return(prebuilt);
 }
 
+/************************************************************************
+Update a prebuilt struct for a MySQL table handle. */
+
+void
+row_update_prebuilt(
+/*================*/
+	row_prebuilt_t*	prebuilt,	/* in: Innobase table handle */
+	dict_table_t*   table)		/* in: table */
+{
+	dict_index_t*	clust_index;
+
+	ut_ad(prebuilt && prebuilt->heap && table);
+	ut_ad(prebuilt->magic_n == ROW_PREBUILT_OBSOLETE);
+
+	prebuilt->magic_n = ROW_PREBUILT_ALLOCATED;
+	prebuilt->magic_n2 = ROW_PREBUILT_ALLOCATED;
+
+	clust_index = dict_table_get_first_index(table);
+
+	if (!prebuilt->index) {
+		prebuilt->index = clust_index;
+	}
+
+	if (prebuilt->ins_node) {
+		ins_node_create_entry_list(prebuilt->ins_node);
+	}
+}
+
 /************************************************************************
 Free a prebuilt struct for a MySQL table handle. */
 
@@ -669,12 +704,15 @@ row_prebuilt_free(
 {
 	ulint	i;
 
-	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED
-	    || prebuilt->magic_n2 != ROW_PREBUILT_ALLOCATED) {
+	if ((prebuilt->magic_n != ROW_PREBUILT_ALLOCATED
+	     && prebuilt->magic_n != ROW_PREBUILT_OBSOLETE)
+	    || (prebuilt->magic_n2 != ROW_PREBUILT_ALLOCATED
+		&& prebuilt->magic_n != ROW_PREBUILT_OBSOLETE)) {
+
 		fprintf(stderr,
 			"InnoDB: Error: trying to free a corrupt\n"
 			"InnoDB: table handle. Magic n %lu,"
-			" magic n2 %lu, table name",
+			" magic n2 %lu, table name ",
 			(ulong) prebuilt->magic_n,
 			(ulong) prebuilt->magic_n2);
 		ut_print_name(stderr, NULL, TRUE, prebuilt->table->name);
@@ -738,6 +776,35 @@ row_prebuilt_free(
 
 	dict_table_decrement_handle_count(prebuilt->table);
 
+	/* If there were references to this table when a primary index on
+	this table was created then we drop it here since there are no
+	references to it now.*/
+	if (prebuilt->table->to_be_dropped
+	    && prebuilt->table->n_mysql_handles_opened == 0) {
+		ibool	added;
+
+		added = row_add_table_to_background_drop_list(prebuilt->table);
+
+		assert(*prebuilt->table->name == TEMP_TABLE_PREFIX);
+
+		ut_print_timestamp(stderr);
+
+		if (added) {
+			fputs("  InnoDB: Dropping table ", stderr);
+			ut_print_name(stderr, NULL, TRUE,
+				      prebuilt->table->name);
+			putc('\n', stderr);
+		} else {
+			fputs("  InnoDB: Error: failed trying to add ",
+			      stderr);
+			ut_print_name(stderr, NULL, TRUE,
+				      prebuilt->table->name);
+			fputs(" to the background drop list.\n", stderr);
+		}
+	}
+
+	UT_LIST_REMOVE(prebuilts, prebuilt->table->prebuilts, prebuilt);
+
 	mem_heap_free(prebuilt->heap);
 }
 
@@ -767,9 +834,9 @@ row_update_prebuilt_trx(
 	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED) {
 		fprintf(stderr,
 			"InnoDB: Error: trying to use a corrupt\n"
-			"InnoDB: table handle. Magic n %lu, table name",
+			"InnoDB: table handle. Magic n %lu, table name ",
 			(ulong) prebuilt->magic_n);
-		ut_print_name(stderr, NULL, TRUE, prebuilt->table->name);
+		ut_print_name(stderr, trx, TRUE, prebuilt->table->name);
 		putc('\n', stderr);
 
 		mem_analyze_corruption(prebuilt);
@@ -1048,6 +1115,88 @@ run_again:
 	return((int) err);
 }
 
+/*************************************************************************
+Sets a table lock on the table  */
+
+int
+row_lock_table_for_merge(
+/*=====================*/
+					/* out: error code or DB_SUCCESS */
+	trx_t*		trx,		/* in: lock table for this trx */
+	dict_table_t*	table,		/* in: table to lock */
+	ulint		mode)		/* in: lock mode of table */
+{
+	mem_heap_t*	heap;		/* Memory heap */
+	que_thr_t*	thr;
+	ulint		err;
+	sel_node_t*	node;
+
+	ut_ad(trx);
+	ut_ad(trx->mysql_thread_id == os_thread_get_curr_id());
+
+	heap = mem_heap_create(512);
+
+	trx->op_info = "setting table lock for index merge";
+
+	node = sel_node_create(heap);
+	thr = pars_complete_graph_for_exec(node, trx, heap);
+	/* SB: Not sure about this - Ask Heikki */
+	thr->graph->state = QUE_FORK_ACTIVE;
+
+	/* We use the select query graph as the dummy graph needed
+	in the lock module call */
+
+	thr = que_fork_get_first_thr(que_node_get_parent(thr));
+	que_thr_move_to_run_state_for_mysql(thr, trx);
+
+run_again:
+	thr->run_node = thr;
+	thr->prev_node = thr->common.parent;
+
+	err = lock_table(0, table, mode, thr);
+
+	trx->error_state = err;
+
+	if (err != DB_SUCCESS) {
+		que_thr_stop_for_mysql(thr);
+
+		if (err != DB_QUE_THR_SUSPENDED) {
+			ibool	was_lock_wait;
+
+			was_lock_wait = row_mysql_handle_errors(
+				&err, trx, thr, NULL);
+
+			if (was_lock_wait) {
+				goto run_again;
+			}
+
+		} else {
+			que_thr_t*	run_thr;
+			que_node_t*	parent;
+
+			parent = que_node_get_parent(thr);
+			run_thr = que_fork_start_command(parent);
+
+			ut_a(run_thr == thr);
+
+			/* There was a lock wait but the thread was not
+			in a ready to run or running state.*/
+			trx->error_state = DB_LOCK_WAIT;
+
+			goto run_again;
+		}
+
+		trx->op_info = "";
+
+		return((int) err);
+	}
+
+	que_thr_stop_for_mysql_no_error(thr, trx);
+
+	trx->op_info = "";
+
+	return((int) err);
+}
 /*************************************************************************
 Does an insert for MySQL. */
 
@@ -1065,6 +1214,7 @@ row_insert_for_mysql(
 	ibool		was_lock_wait;
 	trx_t*		trx		= prebuilt->trx;
 	ins_node_t*	node		= prebuilt->ins_node;
+	dict_table_t*	table;
 
 	ut_ad(trx);
 	ut_ad(trx->mysql_thread_id == os_thread_get_curr_id());
@@ -1087,13 +1237,13 @@ row_insert_for_mysql(
 		return(DB_ERROR);
 	}
 
-	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED) {
+	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED 
+	    && prebuilt->magic_n != ROW_PREBUILT_OBSOLETE) {
 		fprintf(stderr,
 			"InnoDB: Error: trying to free a corrupt\n"
-			"InnoDB: table handle. Magic n %lu, table name",
+			"InnoDB: table handle. Magic n %lu, table name ",
 			(ulong) prebuilt->magic_n);
-		ut_print_name(stderr, prebuilt->trx, TRUE,
-			      prebuilt->table->name);
+		ut_print_name(stderr, trx, TRUE, prebuilt->table->name);
 		putc('\n', stderr);
 
 		mem_analyze_corruption(prebuilt);
@@ -1101,6 +1251,10 @@ row_insert_for_mysql(
 		ut_error;
 	}
 
+	if (prebuilt->magic_n == ROW_PREBUILT_OBSOLETE) {
+		row_update_prebuilt(prebuilt, prebuilt->table);
+	}
+
 	if (srv_created_new_raw || srv_force_recovery) {
 		fputs("InnoDB: A new raw disk partition was initialized or\n"
 		      "InnoDB: innodb_force_recovery is on: we do not allow\n"
@@ -1122,6 +1276,14 @@ row_insert_for_mysql(
 	if (node == NULL) {
 		row_get_prebuilt_insert_row(prebuilt);
 		node = prebuilt->ins_node;
+	} else {
+		table = dict_table_get(prebuilt->table->name, FALSE);
+
+		if (prebuilt->ins_node->table_version_number !=
+		    table->version_number) {
+			row_get_prebuilt_insert_row(prebuilt);
+			node = prebuilt->ins_node;
+		}
 	}
 
 	row_mysql_convert_row_to_innobase(node->row, prebuilt, mysql_rec);
@@ -1143,6 +1305,10 @@ run_again:
 	thr->run_node = node;
 	thr->prev_node = node;
 
+	if (prebuilt->magic_n == ROW_PREBUILT_OBSOLETE) {
+		row_update_prebuilt(prebuilt, prebuilt->table);
+	}
+
 	row_ins_step(thr);
 
 	err = trx->error_state;
@@ -1325,13 +1491,13 @@ row_update_for_mysql(
 		return(DB_ERROR);
 	}
 
-	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED) {
+	if (prebuilt->magic_n != ROW_PREBUILT_ALLOCATED
+	    && prebuilt->magic_n != ROW_PREBUILT_OBSOLETE) {
 		fprintf(stderr,
 			"InnoDB: Error: trying to free a corrupt\n"
-			"InnoDB: table handle. Magic n %lu, table name",
+			"InnoDB: table handle. Magic n %lu, table name ",
 			(ulong) prebuilt->magic_n);
-		ut_print_name(stderr, prebuilt->trx, TRUE,
-			      prebuilt->table->name);
+		ut_print_name(stderr, trx, TRUE, prebuilt->table->name);
 		putc('\n', stderr);
 
 		mem_analyze_corruption(prebuilt);
@@ -1339,6 +1505,10 @@ row_update_for_mysql(
 		ut_error;
 	}
 
+	if (prebuilt->magic_n == ROW_PREBUILT_OBSOLETE) {
+		row_update_prebuilt(prebuilt, prebuilt->table);
+	}
+
 	if (srv_created_new_raw || srv_force_recovery) {
 		fputs("InnoDB: A new raw disk partition was initialized or\n"
 		      "InnoDB: innodb_force_recovery is on: we do not allow\n"
@@ -1391,6 +1561,10 @@ run_again:
 	thr->run_node = node;
 	thr->prev_node = node;
 
+	if (prebuilt->magic_n == ROW_PREBUILT_OBSOLETE) {
+		row_update_prebuilt(prebuilt, prebuilt->table);
+	}
+
 	row_upd_step(thr);
 
 	err = trx->error_state;
@@ -1749,6 +1923,9 @@ row_create_table_for_mysql(
 	ulint		table_name_len;
 	ulint		err;
 	ulint		i;
+	ibool		retry;
+
+	retry = FALSE;
 
 	ut_ad(trx->mysql_thread_id == os_thread_get_curr_id());
 #ifdef UNIV_SYNC_DEBUG
@@ -1868,6 +2045,7 @@ row_create_table_for_mysql(
 
 	heap = mem_heap_create(512);
 
+retry_create:
 	trx->dict_operation = TRUE;
 
 	node = tab_create_graph_create(table, heap);
@@ -1884,9 +2062,10 @@ row_create_table_for_mysql(
 
 		trx->error_state = DB_SUCCESS;
 
-		trx_general_rollback_for_mysql(trx, FALSE, NULL);
 
 		if (err == DB_OUT_OF_FILE_SPACE) {
+			trx_general_rollback_for_mysql(trx, FALSE, NULL);
+
 			ut_print_timestamp(stderr);
 
 			fputs("  InnoDB: Warning: cannot create table ",
@@ -1903,6 +2082,10 @@ row_create_table_for_mysql(
 		} else if (err == DB_DUPLICATE_KEY) {
 			ut_print_timestamp(stderr);
 
+			if (*table->name != TEMP_TABLE_PREFIX) {
+				trx_general_rollback_for_mysql(
+					trx, FALSE, NULL);
+
 				fputs("  InnoDB: Error: table ", stderr);
 				ut_print_name(stderr, trx, TRUE, table->name);
 				fputs(" already exists in InnoDB internal\n"
@@ -1924,9 +2107,26 @@ row_create_table_for_mysql(
 				" and DROP TABLE will\n"
 				"InnoDB: succeed.\n"
 				"InnoDB: You can look for further help from\n"
-			      "InnoDB: http://dev.mysql.com/doc/refman/5.1/en/"
+				"InnoDB: "
+				"http://dev.mysql.com/doc/refman/5.1/en/"
 				"innodb-troubleshooting.html\n", 
 				stderr);
+			} else if (!retry) {
+				fputs("  InnoDB: Warning: table ", stderr);
+				ut_print_name(stderr, trx, TRUE, table->name);
+				fputs(" already exists in InnoDB internal\n"
+				"InnoDB: dropping old temporary table\n",
+				stderr);
+
+				row_drop_table_for_mysql(table->name, trx,
+							 FALSE);
+
+				retry = TRUE;
+				goto retry_create;
+			} else {
+				trx_general_rollback_for_mysql(
+					trx, FALSE, NULL);
+			}
 		}
 
 		/* We may also get err == DB_ERROR if the .ibd file for the
@@ -1964,7 +2164,7 @@ row_create_index_for_mysql(
 	mem_heap_t*	heap;
 	que_thr_t*	thr;
 	ulint		err;
-	ulint		i, j;
+	ulint		i;
 	ulint		len;
 
 #ifdef UNIV_SYNC_DEBUG
@@ -1982,11 +2182,12 @@ row_create_index_for_mysql(
 	safer not to allow them. */
 
 	for (i = 0; i < dict_index_get_n_fields(index); i++) {
+		ulint		j;
+
 		for (j = 0; j < i; j++) {
 			if (0 == ut_strcmp(
 				    dict_index_get_nth_field(index, j)->name,
 				    dict_index_get_nth_field(index, i)->name)) {
-
 				ut_print_timestamp(stderr);
 
 				fputs("  InnoDB: Error: column ", stderr);
@@ -2433,10 +2634,10 @@ row_discard_tablespace_for_mysql(
 		ut_print_timestamp(ef);
 
 		fputs("  Cannot DISCARD table ", ef);
-		ut_print_name(ef, trx, TRUE, name);
+		ut_print_name(stderr, trx, TRUE, name);
 		fputs("\n"
 		      "because it is referenced by ", ef);
-		ut_print_name(ef, trx, TRUE, foreign->foreign_table_name);
+		ut_print_name(stderr, trx, TRUE, foreign->foreign_table_name);
 		putc('\n', ef);
 		mutex_exit(&dict_foreign_err_mutex);
 
@@ -2761,10 +2962,10 @@ row_truncate_table_for_mysql(
 		ut_print_timestamp(ef);
 
 		fputs("  Cannot truncate table ", ef);
-		ut_print_name(ef, trx, TRUE, table->name);
+		ut_print_name(stderr, trx, TRUE, table->name);
 		fputs(" by DROP+CREATE\n"
 		      "InnoDB: because it is referenced by ", ef);
-		ut_print_name(ef, trx, TRUE, foreign->foreign_table_name);
+		ut_print_name(stderr, trx, TRUE, foreign->foreign_table_name);
 		putc('\n', ef);
 		mutex_exit(&dict_foreign_err_mutex);
 
@@ -2982,6 +3183,30 @@ row_drop_table_for_mysql(
 	const char*	name,	/* in: table name */
 	trx_t*		trx,	/* in: transaction handle */
 	ibool		drop_db)/* in: TRUE=dropping whole database */
+{
+	ulint		err;
+
+	err = row_drop_table_for_mysql_no_commit(name, trx, drop_db);
+
+	if (!srv_created_new_raw) {
+		trx_commit_for_mysql(trx);
+	}
+
+	return err;
+}
+
+/*************************************************************************
+Drops a table for MySQL. If the name of the table to be dropped is equal
+with one of the predefined magic table names, then this also stops printing
+the corresponding monitor output by the master thread. */
+
+int
+row_drop_table_for_mysql_no_commit(
+/*===============================*/
+				/* out: error code or DB_SUCCESS */
+	const char*	name,	/* in: table name */
+	trx_t*		trx,	/* in: transaction handle */
+	ibool		drop_db)/* in: TRUE=dropping whole database */
 {
 	dict_foreign_t*	foreign;
 	dict_table_t*	table;
@@ -3111,10 +3336,10 @@ check_next_foreign:
 		ut_print_timestamp(ef);
 
 		fputs("  Cannot drop table ", ef);
-		ut_print_name(ef, trx, TRUE, name);
+		ut_print_name(stderr, trx, TRUE, name);
 		fputs("\n"
 		      "because it is referenced by ", ef);
-		ut_print_name(ef, trx, TRUE, foreign->foreign_table_name);
+		ut_print_name(stderr, trx, TRUE, foreign->foreign_table_name);
 		putc('\n', ef);
 		mutex_exit(&dict_foreign_err_mutex);
 
@@ -3131,6 +3356,9 @@ check_next_foreign:
 		added = row_add_table_to_background_drop_list(table);
 
 		if (added) {
+			/* Temporary tables can have read views and we don't
+			print any warning. */
+			if (*table->name != TEMP_TABLE_PREFIX) {
 				ut_print_timestamp(stderr);
 				fputs("  InnoDB: Warning: MySQL is"
 				      " trying to drop table ", stderr);
@@ -3141,10 +3369,12 @@ check_next_foreign:
 				      "InnoDB: Adding the table to the"
 				      " background drop queue.\n",
 				      stderr);
+			} else {
+				ut_a(table->to_be_dropped);
+			}
 
 			/* We return DB_SUCCESS to MySQL though the drop will
 			happen lazily later */
-
 			err = DB_SUCCESS;
 		} else {
 			/* The table is already in the background drop list */
@@ -3219,7 +3449,6 @@ check_next_foreign:
 			   "WHERE NAME = :table_name\n"
 			   "LOCK IN SHARE MODE;\n"
 			   "IF (SQL % NOTFOUND) THEN\n"
-			   "       COMMIT WORK;\n"
 			   "       RETURN;\n"
 			   "END IF;\n"
 			   "found := 1;\n"
@@ -3272,7 +3501,6 @@ check_next_foreign:
 			   "WHERE TABLE_ID = table_id;\n"
 			   "DELETE FROM SYS_TABLES\n"
 			   "WHERE ID = table_id;\n"
-			   "COMMIT WORK;\n"
 			   "END;\n"
 			   , FALSE, trx);
 
@@ -3354,8 +3582,6 @@ check_next_foreign:
 	}
 funct_exit:
 
-	trx_commit_for_mysql(trx);
-
 	if (locked_dictionary) {
 		row_mysql_unlock_data_dictionary(trx);
 	}
@@ -3532,7 +3758,8 @@ row_rename_table_for_mysql(
 					/* out: error code or DB_SUCCESS */
 	const char*	old_name,	/* in: old table name */
 	const char*	new_name,	/* in: new table name */
-	trx_t*		trx)		/* in: transaction handle */
+	trx_t*		trx,		/* in: transaction handle */
+	ibool		commit)		/* in: if TRUE then commit trx */
 {
 	dict_table_t*	table;
 	ulint		err;
@@ -3557,9 +3784,7 @@ row_rename_table_for_mysql(
 
 		trx_commit_for_mysql(trx);
 		return(DB_ERROR);
-	}
-
-	if (row_mysql_is_system_table(new_name)) {
+	} else if (row_mysql_is_system_table(new_name)) {
 
 		fprintf(stderr,
 			"InnoDB: Error: trying to create a MySQL"
@@ -3578,11 +3803,6 @@ row_rename_table_for_mysql(
 	old_is_tmp = row_is_mysql_tmp_table_name(old_name);
 	new_is_tmp = row_is_mysql_tmp_table_name(new_name);
 
-	/* Serialize data dictionary operations with dictionary mutex:
-	no deadlocks can occur then in these operations */
-
-	row_mysql_lock_data_dictionary(trx);
-
 	table = dict_table_get_low(old_name);
 
 	if (!table) {
@@ -3603,9 +3823,7 @@ row_rename_table_for_mysql(
 		      "innodb-troubleshooting.html\n",
 		      stderr);
 		goto funct_exit;
-	}
-
-	if (table->ibd_file_missing) {
+	} else if (table->ibd_file_missing) {
 		err = DB_TABLE_NOT_FOUND;
 		ut_print_timestamp(stderr);
 
@@ -3618,9 +3836,7 @@ row_rename_table_for_mysql(
 		      "innodb-troubleshooting.html\n",
 		      stderr);
 		goto funct_exit;
-	}
-
-	if (new_is_tmp) {
+	} else if (new_is_tmp) {
 		/* MySQL is doing an ALTER TABLE command and it renames the
 		original table to a temporary table name. We want to preserve
 		the original foreign key constraint definitions despite the
@@ -3660,9 +3876,7 @@ row_rename_table_for_mysql(
 	if (err != DB_SUCCESS) {
 
 		goto end;
-	}
-
-	if (!new_is_tmp) {
+	} else if (!new_is_tmp) {
 		/* Rename all constraints. */
 
 		info = pars_info_create();
@@ -3860,8 +4074,10 @@ end:
 	}
 
 funct_exit:
+
+	if (commit) {
 		trx_commit_for_mysql(trx);
-	row_mysql_unlock_data_dictionary(trx);
+	}
 
 	if (UNIV_LIKELY_NULL(heap)) {
 		mem_heap_free(heap);
@@ -4066,8 +4282,7 @@ row_check_table_for_mysql(
 		if (!btr_validate_index(index, prebuilt->trx)) {
 			ret = DB_ERROR;
 		} else {
-			if (!row_scan_and_check_index(prebuilt,
-						      index, &n_rows)) {
+			if (!row_scan_and_check_index(prebuilt,index, &n_rows)){
 				ret = DB_ERROR;
 			}
 
@@ -4118,4 +4333,273 @@ row_check_table_for_mysql(
 
 	return(ret);
 }
+
+/***************************************************************************
+Writes information to an undo log about dictionary operation e.g.
+rename_table, create_table, create_index, drop table. This information
+is used in a rollback of the transaction. */
+static
+ulint
+row_undo_report_dict_operation(
+/*===========================*/
+					/* out: DB_SUCCESS or error code */
+	ulint		op_type,	/* in: TRX_UNDO_TABLE_CREATE_OP,
+					TRX_UNDO_TABLE_RENAME_OP,
+					TRX_UNDO_TABLE_DROP_OP, or
+					TRX_UNDO_INDEX_CREATE_OP */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index,		/* in:
+					if TRX_UNDO_INDEX_CREATE_OP
+					index to be created*/
+	const char*	table_name,	/* in: table name or NULL, used in
+					create table, rename table and
+					drop table*/
+	const char*	old_table_name,	/* in: old table name or NULL. */
+	const char*	tmp_table_name)	/* in: the intermediate name or NULL */
+{
+	dulint		roll_ptr;
+
+	return trx_undo_report_dict_operation(
+		op_type, trx, index, table_name, old_table_name,
+		tmp_table_name, &roll_ptr);
+}
+
+/***************************************************************************
+Writes information to an undo log about dictionary operation, create_table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_create_table_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	const char*	table_name)	/* in: table name to create. */
+{
+	return row_undo_report_dict_operation(
+		TRX_UNDO_TABLE_CREATE_OP, trx, NULL, table_name, NULL, NULL);
+}
+
+/***************************************************************************
+Writes information to an undo log about dictionary operation, create_index.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_create_index_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index)		/* in: index created. */
+{
+	return row_undo_report_dict_operation(
+		TRX_UNDO_INDEX_CREATE_OP, trx, index, NULL, NULL, NULL);
+}
+
+/***************************************************************************
+Writes information to an undo log about dictionary operation, rename_table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_rename_table_dict_operation(
+/*========================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	const char*	from_table_name,/* in: rename from table table. */
+	const char*	to_table_name,	/* in: rename to table name. */
+	const char*	tmp_table_name)	/* in: intermediate name for table */
+{
+	return row_undo_report_dict_operation(
+		TRX_UNDO_TABLE_RENAME_OP, trx, NULL,
+		to_table_name, from_table_name, tmp_table_name);
+}
+
+/***************************************************************************
+Writes information to an undo log about dictionary operation, drop table.
+This information is used in a rollback of the transaction. */
+
+ulint
+row_undo_report_drop_table_dict_operation(
+/*======================================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: query thread */
+	const char*	table_name)	/* in: table name dropped */
+{
+	return row_undo_report_dict_operation(
+		TRX_UNDO_TABLE_DROP_OP, trx, NULL, table_name, NULL, NULL);
+}
+
+/*************************************************************************
+Create query graph for an index creation */
+
+ulint
+row_create_index_graph_for_mysql(
+/*=============================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: trx */
+	dict_table_t*	table,		/* in: table */
+	dict_index_t*	index)		/* in: index */
+{
+	ind_node_t*	node;		/* Index creation node */
+	mem_heap_t*	heap;		/* Memory heap */
+	que_thr_t*	thr;		/* Query thread */
+	ulint		err = DB_SUCCESS;
+
+	ut_ad(trx && index);
+
+	heap = mem_heap_create(512);
+
+	index->table = table;
+	node = ind_create_graph_create(index, heap);
+	thr = pars_complete_graph_for_exec(node, trx, heap);
+
+	ut_a(thr == que_fork_start_command(que_node_get_parent(thr)));
+
+	que_run_threads(thr);
+
+	err = trx->error_state;
+
+	que_graph_free((que_t*) que_node_get_parent(thr));
+
+	return(err);
+}
+
+/*************************************************************************
+Build new indexes to a table by reading a cluster index,
+creating a temporary file containing index entries, merge sorting
+these index entries and inserting sorted index entries to indexes. */
+
+ulint
+row_build_index_for_mysql(
+/*======================*/
+					/* out: 0 or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	old_table,	/* in: Table where rows are
+					read from */
+	dict_table_t*	new_table,	/* in: Table where indexes are
+					created. Note that old_table ==
+					new_table if we are creating a
+					secondary keys. */
+	dict_index_t**	index,		/* in: Indexes to be created */
+	ibool		new_primary,	/* in: new primary key
+					i.e. clustered index will be build
+					for this table */
+	ulint		num_of_keys)	/* in: Number of indexes to be
+					created */
+{
+	merge_file_t**	merge_files;
+	mem_heap_t*	file_heap;
+	ulint		index_num;
+	ulint		error = DB_SUCCESS;
+
+	ut_ad(trx && old_table && new_table && index && num_of_keys);
+
+	trx_start_if_not_started(trx);
+
+	/* Allocate memory for merge file data structure and initialize
+	fields */
+
+	file_heap = mem_heap_create(
+		num_of_keys * (sizeof(merge_file_t) + sizeof(merge_file_t*)));
+
+	merge_files = mem_heap_alloc(
+		file_heap, num_of_keys * sizeof(merge_file_t*));
+
+	for (index_num = 0; index_num < num_of_keys; index_num++) {
+
+		merge_files[index_num] =
+			row_merge_create_file_structure(file_heap);
+	}
+
+
+	/* Read clustered index of the table and create files for
+	secondary index entries for merge sort */
+
+	error = row_merge_read_clustered_index(
+		trx, old_table, index, merge_files, num_of_keys);
+
+	if (error != DB_SUCCESS) {
+
+		return(error);
+	}
+
+	trx_start_if_not_started(trx);
+
+	/* Now we have files containing index entries ready for
+	sorting and inserting. */
+
+	for (index_num = 0; index_num < num_of_keys; index_num++) {
+
+		/* Do a merge sort and insert from those files
+		which we have written at least one block */
+
+		if (merge_files[index_num]->num_of_blocks > 0) {
+			dulint offset = ut_dulint_create(0, 0);
+
+			/* Merge sort file using linked list merge
+			sort for files. */
+
+			offset = row_merge_sort_linked_list_in_disk(
+				index[index_num],
+				merge_files[index_num]->file,
+				(int *)&error);
+
+			if (error != DB_SUCCESS) {
+				trx->error_key_num = index_num;
+				goto func_exit;
+			}
+
+			/* Insert sorted index entries to the table. */
+
+			error = row_merge_insert_index_tuples(
+				trx,
+				index[index_num],
+				new_table,
+				merge_files[index_num]->file,
+				ut_dulint_create(0,0));
+
+			if (error != DB_SUCCESS) {
+				trx->error_key_num = index_num;
+				goto func_exit;
+			}
+		}
+	}
+
+func_exit:
+	if (error == DB_SUCCESS && new_primary) {
+		row_merge_mark_prebuilt_obsolete(trx, old_table);
+	}
+
+	mem_heap_free(file_heap);
+
+	return(error);
+}
+
+/*************************************************************************
+Remove those indexes which were created before a error happened in
+the index build */
+
+ulint
+row_remove_indexes_for_mysql(
+/*=========================*/
+					/* out: 0 or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_table_t*	table,		/* in: Table where index is created */
+	dict_index_t**	index,		/* in: Indexes to be created */
+	ulint		num_created)	/* in: Number of indexes created
+					before error and now must be removed */
+{
+	ulint		key_num;
+	ulint		error = DB_SUCCESS;
+
+	ut_ad(trx && table && index);
+
+	for (key_num = 0; key_num < num_created; key_num++) {
+		error = row_merge_remove_index(index[key_num], table, trx);
+
+		if (error != DB_SUCCESS) {
+			break;
+		}
+	}
+
+	return(error);
+}
 #endif /* !UNIV_HOTBACKUP */

row/row0purge.c

@@ -227,7 +227,7 @@ row_purge_remove_sec_if_poss_low(
 		/* Not found */
 
 		/* fputs("PURGE:........sec entry not found\n", stderr); */
-		/* dtuple_print(entry); */
+		/* dtuple_print(stderr, entry); */
 
 		btr_pcur_close(&pcur);
 		mtr_commit(&mtr);

row/row0row.c

@@ -57,15 +57,16 @@ row_get_trx_id_offset(
 }
 
 /*********************************************************************
-When an insert to a table is performed, this function builds the entry which
-has to be inserted to an index on the table. */
+When an insert or purge to a table is performed, this function builds
+the entry to be inserted into or purged from an index on the table. */
 
 dtuple_t*
 row_build_index_entry(
 /*==================*/
-				/* out: index entry which should be inserted */
-	const dtuple_t*	row,	/* in: row which should be inserted to the
-				table */
+				/* out: index entry which should be
+				inserted or purged */
+	const dtuple_t*	row,	/* in: row which should be
+				inserted or purged */
 	row_ext_t*	ext,	/* in: externally stored column prefixes,
 				or NULL */
 	dict_index_t*	index,	/* in: index on the table */

row/row0uins.c

@@ -28,6 +28,7 @@ Created 2/25/1997 Heikki Tuuri
 #include "que0que.h"
 #include "ibuf0ibuf.h"
 #include "log0log.h"
+#include "row0merge.h"
 
 /*******************************************************************
 Removes a clustered index record. The pcur in node was positioned on the
@@ -52,6 +53,25 @@ row_undo_ins_remove_clust_rec(
 	ut_a(success);
 
 	if (ut_dulint_cmp(node->table->id, DICT_INDEXES_ID) == 0) {
+		trx_t*	trx;
+		ibool	thawed_dictionary = FALSE;
+		ibool	locked_dictionary = FALSE;
+
+		trx = node->trx;
+
+		if (trx->dict_operation_lock_mode == RW_S_LATCH) {
+			row_mysql_unfreeze_data_dictionary(trx);
+
+			thawed_dictionary = TRUE;
+		}
+
+		if (trx->dict_operation_lock_mode == 0
+		    || trx->dict_operation_lock_mode != RW_X_LATCH) {
+
+			row_mysql_lock_data_dictionary(trx);
+
+			locked_dictionary = TRUE;
+		}
 
 		/* Drop the index tree associated with the row in
 		SYS_INDEXES table: */
@@ -65,6 +85,14 @@ row_undo_ins_remove_clust_rec(
 		success = btr_pcur_restore_position(BTR_MODIFY_LEAF,
 						    &(node->pcur), &mtr);
 		ut_a(success);
+
+		if (locked_dictionary) {
+			row_mysql_unlock_data_dictionary(trx);
+		}
+
+		if (thawed_dictionary) {
+			row_mysql_freeze_data_dictionary(trx);
+		}
 	}
 
 	btr_cur = btr_pcur_get_btr_cur(&(node->pcur));
@@ -211,6 +239,36 @@ retry:
 	return(err);
 }
 
+/***************************************************************
+Parses the rec_type undo record. */
+
+byte*
+row_undo_ins_parse_rec_type_and_table_id(
+/*=====================================*/
+					/* out: ptr to next field to parse */
+	undo_node_t*	node,		/* in: row undo node */
+	dulint*		table_id)	/* out: table id */
+{
+	byte*		ptr;
+	dulint		undo_no;
+	ulint		type;
+	ulint		dummy;
+	ibool		dummy_extern;
+
+	ut_ad(node && node->trx);
+
+	ptr = trx_undo_rec_get_pars(node->undo_rec, &type, &dummy,
+				    &dummy_extern, &undo_no, table_id);
+
+	node->rec_type = type;
+
+	if (node->rec_type == TRX_UNDO_DICTIONARY_REC) {
+		node->trx->dict_operation = TRUE;
+	}
+
+	return ptr;
+}
+
 /***************************************************************
 Parses the row reference and other info in a fresh insert undo record. */
 static
@@ -219,39 +277,67 @@ row_undo_ins_parse_undo_rec(
 /*========================*/
 	undo_node_t*	node)	/* in: row undo node */
 {
-	dict_index_t*	clust_index;
 	byte*		ptr;
-	dulint		undo_no;
 	dulint		table_id;
-	ulint		type;
-	ulint		dummy;
-	ibool		dummy_extern;
 
 	ut_ad(node);
 
-	ptr = trx_undo_rec_get_pars(node->undo_rec, &type, &dummy,
-				    &dummy_extern, &undo_no, &table_id);
-	ut_ad(type == TRX_UNDO_INSERT_REC);
-	node->rec_type = type;
+	ptr = row_undo_ins_parse_rec_type_and_table_id(node, &table_id);
 
-	node->table = dict_table_get_on_id(table_id, node->trx);
+	ut_ad(node->rec_type == TRX_UNDO_INSERT_REC
+	      || node->rec_type == TRX_UNDO_DICTIONARY_REC);
 
-	if (node->table == NULL) {
+	if (node->rec_type == TRX_UNDO_INSERT_REC) {
 
-		return;
+		trx_t*	trx;
+		ibool	thawed_dictionary = FALSE;
+		ibool	locked_dictionary = FALSE;
+
+		trx = node->trx;
+
+		/* If it's sytem table then we have to acquire the
+		dictionary lock in X mode.*/
+
+		if (ut_dulint_cmp(table_id, DICT_FIELDS_ID) <= 0) {
+			if (trx->dict_operation_lock_mode == RW_S_LATCH) {
+				row_mysql_unfreeze_data_dictionary(trx);
+
+				thawed_dictionary = TRUE;
 			}
 
-	if (node->table->ibd_file_missing) {
-		/* We skip undo operations to missing .ibd files */
+			if (trx->dict_operation_lock_mode == 0
+			|| trx->dict_operation_lock_mode != RW_X_LATCH) {
+
+				row_mysql_lock_data_dictionary(trx);
+
+				locked_dictionary = TRUE;
+			}
+		}
+
+		node->table = dict_table_get_on_id(table_id, trx);
+
+		/* If we can't find the table or .ibd file is missing,
+		we skip the UNDO.*/
+		if (node->table == NULL || node->table->ibd_file_missing) {
+
 			node->table = NULL;
-
-		return;
-	}
+		} else {
+			dict_index_t*	clust_index;
 
 			clust_index = dict_table_get_first_index(node->table);
 
-	ptr = trx_undo_rec_get_row_ref(ptr, clust_index, &(node->ref),
-				       node->heap);
+			ptr = trx_undo_rec_get_row_ref(
+				ptr, clust_index, &node->ref, node->heap);
+		}
+
+		if (locked_dictionary) {
+			row_mysql_unlock_data_dictionary(trx);
+		}
+
+		if (thawed_dictionary) {
+			row_mysql_freeze_data_dictionary(trx);
+		}
+	}
 }
 
 /***************************************************************
@@ -265,33 +351,37 @@ row_undo_ins(
 				/* out: DB_SUCCESS or DB_OUT_OF_FILE_SPACE */
 	undo_node_t*	node)	/* in: row undo node */
 {
-	dtuple_t*	entry;
-	ibool		found;
-	ulint		err;
+	ulint		err = DB_SUCCESS;
 
 	ut_ad(node);
 	ut_ad(node->state == UNDO_NODE_INSERT);
 
 	row_undo_ins_parse_undo_rec(node);
 
-	if (node->table == NULL) {
-		found = FALSE;
-	} else {
-		found = row_undo_search_clust_to_pcur(node);
-	}
+	/* Dictionary records are undone in a separate function */
+
+	if (node->rec_type == TRX_UNDO_DICTIONARY_REC) {
+
+		err = row_undo_build_dict_undo_list(node);
+
+	} else if (!node->table || !row_undo_search_clust_to_pcur(node)) {
 
-	if (!found) {
 		trx_undo_rec_release(node->trx, node->undo_no);
 
-		return(DB_SUCCESS);
-	}
+	} else {
 
+		/* Iterate over all the indexes and undo the insert.*/
+
+		/* Skip the clustered index (the first index) */
 		node->index = dict_table_get_next_index(
 			dict_table_get_first_index(node->table));
 
 		while (node->index != NULL) {
+			dtuple_t*	entry;
+
 			entry = row_build_index_entry(node->row, node->ext,
 						      node->index, node->heap);
+
 			err = row_undo_ins_remove_sec(node->index, entry);
 
 			if (err != DB_SUCCESS) {
@@ -303,6 +393,7 @@ row_undo_ins(
 		}
 
 		err = row_undo_ins_remove_clust_rec(node);
+	}
 
 	return(err);
 }

row/row0umod.c

@@ -426,7 +426,15 @@ row_undo_mod_del_unmark_sec_and_undo_update(
 	log_free_check();
 	mtr_start(&mtr);
 
+	/* Check if the index was created after this transaction was
+	started because then this index will not have the changes made
+	by this transaction.*/
+	if (*index->name != TEMP_TABLE_PREFIX) {
 		found = row_search_index_entry(index, entry, mode, &pcur, &mtr);
+	} else {
+
+		return(err);
+	}
 
 	if (!found) {
 		fputs("InnoDB: error in sec index entry del undo in\n"

row/row0undo.c

@@ -26,6 +26,7 @@ Created 1/8/1997 Heikki Tuuri
 #include "row0umod.h"
 #include "row0mysql.h"
 #include "srv0srv.h"
+#include "row0merge.h"
 
 /* How to undo row operations?
 (1) For an insert, we have stored a prefix of the clustered index record
@@ -124,6 +125,7 @@ row_undo_node_create(
 
 	undo->state = UNDO_NODE_FETCH_NEXT;
 	undo->trx = trx;
+	undo->rec_sub_type = TRX_UNDO_NULL_REC;
 
 	btr_pcur_init(&(undo->pcur));
 
@@ -350,3 +352,352 @@ row_undo_step(
 
 	return(thr);
 }
+
+/***************************************************************
+Parses the info in a fresh insert undo record containing a
+dictionary change. */
+static
+ulint
+row_undo_dictionary_parse_undo_rec(
+/*===============================*/
+				/* out: DB_SUCCESS or DB_ERROR */
+	undo_node_t*	node)	/* in: row undo node */
+{
+	byte*		ptr;
+	dulint		table_id;
+	dulint		index_id;
+	ulint		len;
+
+	ut_ad(node);
+
+	node->rec_type = trx_undo_rec_get_type(node->undo_rec);
+	node->undo_no = trx_undo_rec_get_undo_no(node->undo_rec);
+
+	ptr = trx_undo_rec_get_ptr(node->undo_rec, node->undo_no);
+
+	ut_a(node->rec_type == TRX_UNDO_DICTIONARY_REC);
+
+	/* Read dictionary rec sub type */
+	node->rec_sub_type = mach_read_from_1(ptr);
+	ptr++;
+
+	/* Parse subtype parameters */
+
+	switch (node->rec_sub_type) {
+
+	case TRX_UNDO_INDEX_CREATE_REC:
+
+		table_id = mach_dulint_read_much_compressed(ptr);
+		len = mach_dulint_get_much_compressed_size(table_id);
+		ptr += len;
+
+		index_id = mach_dulint_read_much_compressed(ptr);
+		len = mach_dulint_get_much_compressed_size(index_id);
+		ptr += len;
+
+		node->table = dict_table_get_on_id(table_id, node->trx);
+		node->index = NULL;
+
+		if (!node->table) {
+			ut_print_timestamp(stderr);
+			fprintf(stderr,
+				"  InnoDB: [Error]: Table %lu %lu not found "
+				"in index create undo rec\n",
+				(ulong) ut_dulint_get_high(table_id),
+				(ulong) ut_dulint_get_low(table_id));
+			goto err_exit;
+		} else if (ut_dulint_is_zero(index_id)) {
+			ut_print_timestamp(stderr);
+			fprintf(stderr,
+				"  InnoDB: [Error]: Index id missing from "
+				"index create undo rec\n");
+err_exit:
+			mutex_enter(&kernel_mutex);
+			trx_print(stderr, node->trx, 1024);
+			mutex_exit(&kernel_mutex);
+
+			return(DB_ERROR);
+		} else {
+			node->index = dict_index_get_on_id_low(
+				node->table, index_id);
+		}
+
+		if (node->table->ibd_file_missing || !node->index) {
+			/* We skip undo operations to missing .ibd files
+			and missing indexes */
+			node->table = NULL;
+			node->index = NULL;
+
+			return(DB_SUCCESS);
+		}
+
+		break;
+
+	case TRX_UNDO_TABLE_CREATE_REC:
+	case TRX_UNDO_TABLE_DROP_REC:
+		len = strlen((char *)ptr) + 1;
+
+		node->new_table_name = mem_heap_strdup(node->heap, (char *)ptr);
+		ptr += len;
+
+		ut_ad(*node->new_table_name == TEMP_TABLE_PREFIX);
+		break;
+
+	case TRX_UNDO_TABLE_RENAME_REC:
+		len = strlen((char *)ptr) + 1;
+
+		node->new_table_name = mem_heap_strdup(node->heap, (char *)ptr);
+		ptr += len;
+
+		ut_ad(*node->new_table_name == TEMP_TABLE_PREFIX);
+
+		len = strlen((char *)ptr) + 1;
+
+		node->old_table_name = mem_heap_strdup(node->heap, (char *)ptr);
+		ptr += len;
+
+		len = strlen((char *)ptr) + 1;
+
+		node->tmp_table_name = mem_heap_strdup(node->heap, (char *)ptr);
+		ptr += len;
+
+		ut_ad(*node->tmp_table_name == TEMP_TABLE_PREFIX);
+		break;
+
+	default:
+		ut_print_timestamp(stderr);
+
+		fprintf(stderr,
+			"  InnoDB: [Error]: Undefined rec_sub_type = %lu at "
+			"row_undo_dictionary_parse_undo_rec\n", 
+			(ulong)node->rec_sub_type);
+
+		mutex_enter(&kernel_mutex);
+		trx_print(stderr, node->trx, 1024);
+		mutex_exit(&kernel_mutex);
+
+		return(DB_ERROR);
+	}
+
+	return(DB_SUCCESS);
+}
+
+/***************************************************************
+ Currently we gather all the information that is required to do the 
+ UNDO. The actual UNDO is done later in row_undo_dictionary().*/
+
+ulint
+row_undo_build_dict_undo_list(
+/*==========================*/
+				/* out: DB_SUCCESS or error code */
+	undo_node_t*	node)	/* in: row undo node */
+{
+	trx_t*		trx;
+	dict_undo_t*	dict_undo;
+	ulint		err = DB_SUCCESS;
+	ibool		locked_dictionary = FALSE;
+	ibool		thawed_dictionary = FALSE;
+
+	ut_ad(node);
+	ut_ad(node->state == UNDO_NODE_INSERT);
+	ut_a(node->trx->dict_operation);
+
+	err = row_undo_dictionary_parse_undo_rec(node);
+
+	if (err != DB_SUCCESS) {
+
+		goto func_exit;
+	}
+
+	trx = node->trx;
+
+	if (trx->dict_operation_lock_mode == RW_S_LATCH) {
+		row_mysql_unfreeze_data_dictionary(trx);
+
+		thawed_dictionary = TRUE;
+	}
+
+	if (trx->dict_operation_lock_mode == 0
+	    || trx->dict_operation_lock_mode != RW_X_LATCH) {
+
+		row_mysql_lock_data_dictionary(trx);
+
+		locked_dictionary = TRUE;
+	}
+
+	/* We will do our own deletes */
+	trx->table_id = ut_dulint_create(0, 0);
+
+	if (trx->dict_undo_list == NULL) {
+		dict_undo_create_list(trx);
+	}
+
+	/* Create an element and append to the list */
+	dict_undo = dict_undo_create_element(trx);
+
+	dict_undo->op_type = node->rec_sub_type;
+
+	switch (node->rec_sub_type) {
+
+	case TRX_UNDO_INDEX_CREATE_REC:
+
+		if (node->table && node->index) {
+			ut_a(node->index->table == node->table);
+
+			dict_undo->data.index = node->index;
+		} else {
+			dict_undo->data.index = NULL;
+		}
+
+		break;
+
+	case TRX_UNDO_TABLE_DROP_REC:
+	case TRX_UNDO_TABLE_CREATE_REC:
+
+		dict_undo->data.table.old_table = dict_table_get_low(
+			node->new_table_name);
+
+		break;
+
+	case TRX_UNDO_TABLE_RENAME_REC:
+
+		dict_undo->data.table.old_table = dict_table_get_low(
+			node->old_table_name);
+
+		dict_undo->data.table.tmp_table = dict_table_get_low(
+			node->tmp_table_name);
+
+		dict_undo->data.table.new_table = dict_table_get_low(
+			node->new_table_name);
+
+		if (dict_undo->data.table.tmp_table
+		      && dict_undo->data.table.old_table
+		      && dict_undo->data.table.new_table) {
+
+			/* This can't happen */
+			ut_error;
+		}
+
+		break;
+
+	default:
+
+		ut_error;
+
+		break;
+	}
+
+	if (locked_dictionary) {
+		row_mysql_unlock_data_dictionary(trx);
+	}
+
+	if (thawed_dictionary) {
+		row_mysql_freeze_data_dictionary(trx);
+	}
+
+func_exit:
+	trx_undo_rec_release(node->trx, node->undo_no);
+
+	return(err);
+}
+
+ulint
+row_undo_dictionary(
+/*================*/
+					/* out: DB_SUCCESS or error code */
+	trx_t*		trx,		/* in: transaction */
+	dict_undo_t*	dict_undo)	/* in: dict undo info */
+{
+	ulint		err = DB_SUCCESS;
+
+	switch (dict_undo->op_type) {
+	case TRX_UNDO_INDEX_CREATE_REC:
+
+		err = row_merge_remove_index(
+			dict_undo->data.index, dict_undo->data.index->table,
+			trx);
+
+		break;
+
+	/* TODO: We are REDOing the DROP ? */
+	case TRX_UNDO_TABLE_DROP_REC:
+	case TRX_UNDO_TABLE_CREATE_REC:
+
+		if (dict_undo->data.table.old_table) {
+
+			err = row_drop_table_for_mysql_no_commit(
+				dict_undo->data.table.old_table->name,
+				trx, FALSE);
+		}
+
+		break;
+
+	case TRX_UNDO_TABLE_RENAME_REC:
+		if (!dict_undo->data.table.new_table) {
+
+			/* Old name to tmp name succeeded and new name to old
+			name succeeded too. We have to be very careful here as
+			the user could loose the entire table if not done
+			carefully.*/
+			ut_ad(dict_undo->data.table.old_table);
+
+			err = row_rename_table_for_mysql(
+				dict_undo->data.table.old_table->name,
+				dict_undo->data.table.new_table->name,
+				trx, FALSE);
+
+			if (err == DB_SUCCESS) {
+				err = row_rename_table_for_mysql(
+					dict_undo->data.table.tmp_table->name,
+					dict_undo->data.table.old_table->name,
+					trx, FALSE);
+			}
+
+			if (err == DB_SUCCESS) {
+
+				err = row_drop_table_for_mysql_no_commit(
+					dict_undo->data.table.new_table->name,
+					trx, FALSE);
+			}
+
+		} else if (dict_undo->data.table.old_table) {
+			/* Rename to tmp failed.*/
+
+			ut_ad(!dict_undo->data.table.tmp_table);
+
+			if (dict_undo->data.table.new_table) {
+
+				err = row_drop_table_for_mysql_no_commit(
+					dict_undo->data.table.new_table->name,
+					trx, FALSE);
+			}
+
+		} else if (dict_undo->data.table.tmp_table) {
+			/* Rename to tmp was OK. We need to UNDO it.*/
+
+			ut_ad(!dict_undo->data.table.old_table);
+
+			err = row_rename_table_for_mysql(
+				dict_undo->data.table.tmp_table->name,
+				dict_undo->data.table.old_table->name,
+				trx, FALSE);
+
+			if (dict_undo->data.table.new_table) {
+
+				err = row_drop_table_for_mysql_no_commit(
+					dict_undo->data.table.new_table->name,
+					trx, FALSE);
+			}
+
+		} else {
+			/* Shouldn't happen */
+			ut_error;
+		}
+
+	default:
+		ut_error;
+	}
+
+	return(err);
+}
+

trx/trx0rec.c

@@ -130,6 +130,105 @@ trx_undo_left(
 	return(UNIV_PAGE_SIZE - (ptr - page) - 10 - FIL_PAGE_DATA_END);
 }
 
+/**************************************************************************
+Get the pointer to where the data for the undo log record will be written.*/
+static
+byte*
+trx_undo_page_get_ptr(
+/*==================*/
+					/* out: ptr to where the undo log
+					record data will be written,
+					0 if not enough space.*/
+	page_t*		undo_page,	/* in: undo log page */
+	ulint		need)		/* in: need these man bytes */
+{
+	byte*		ptr;		/* pointer within undo_page */
+	ulint		first_free;	/* offset within undo page */
+
+	ut_ad(undo_page);
+
+	ut_ad(mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR
+			       + TRX_UNDO_PAGE_TYPE) == TRX_UNDO_INSERT);
+
+	first_free = mach_read_from_2(
+		undo_page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE);
+
+	/* Start writing the undo information from the first free
+	bytes in the undo page */
+	ptr = undo_page + first_free;
+
+	ut_ad(first_free <= UNIV_PAGE_SIZE);
+
+	/* NOTE: the value need must be big enough such that the
+	general fields written below fit on the undo log page */
+
+	if (UNIV_UNLIKELY(trx_undo_left(undo_page, ptr) < need)) {
+
+		/* Error, not enough space */
+		ptr = 0;
+
+	} else {
+		/* Reserve 2 bytes for the pointer to the next undo log
+		record */
+		ptr += 2;
+	}
+
+	return(ptr);
+}
+
+/**************************************************************************
+Set the next and previous pointers in the undo page for the undo record
+that was written to ptr. Update the first free value by the number of bytes
+written for this undo record.*/
+static
+ulint
+trx_undo_page_set_next_prev_and_add(
+/*================================*/
+					/* out: offset of the inserted entry
+					on the page if succeeded, 0 if fail */
+	page_t*		undo_page,	/* in/out: undo log page */
+	byte*		ptr,		/* in: ptr up to where data has been
+					written on this undo page. */
+	mtr_t*		mtr)		/* in: mtr */
+{
+	ulint		first_free;	/* offset within undo_page */
+	ulint		end_of_rec;	/* offset within undo_page */
+	byte*		ptr_to_first_free;
+					/* pointer within undo_page
+					that points to the next free
+					offset value within undo_page.*/
+
+	ut_ad(ptr > undo_page);
+	ut_ad(ptr < undo_page + UNIV_PAGE_SIZE);
+
+	if (UNIV_UNLIKELY(trx_undo_left(undo_page, ptr) < 2)) {
+
+		return(0);
+	}
+
+	ptr_to_first_free = undo_page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE;
+
+	first_free = mach_read_from_2(ptr_to_first_free);
+
+	/* Write offset of the previous undo log record */
+	mach_write_to_2(ptr, first_free);
+	ptr += 2;
+
+	end_of_rec = ptr - undo_page;
+
+	/* Write offset of the next undo log record */
+	mach_write_to_2(undo_page + first_free, end_of_rec);
+
+	/* Update the offset to first free undo record */
+	mach_write_to_2(ptr_to_first_free, end_of_rec);
+
+	/* Write this log entry to the UNDO log */
+	trx_undof_page_add_undo_rec_log(undo_page, first_free,
+					end_of_rec, mtr);
+
+	return(first_free);
+}
+
 /**************************************************************************
 Reports in the undo log of an insert of a clustered index record. */
 static
@@ -147,9 +246,6 @@ trx_undo_page_report_insert(
 {
 	ulint		first_free;
 	byte*		ptr;
-	ulint		len;
-	const dfield_t*	field;
-	ulint		flen;
 	ulint		i;
 
 	ut_ad(mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR
@@ -172,31 +268,24 @@ trx_undo_page_report_insert(
 	ptr += 2;
 
 	/* Store first some general parameters to the undo log */
-	mach_write_to_1(ptr, TRX_UNDO_INSERT_REC);
-	ptr++;
-
-	len = mach_dulint_write_much_compressed(ptr, trx->undo_no);
-	ptr += len;
-
-	len = mach_dulint_write_much_compressed(ptr, (index->table)->id);
-	ptr += len;
+	*ptr++ = TRX_UNDO_INSERT_REC;
+	ptr += mach_dulint_write_much_compressed(ptr, trx->undo_no);
+	ptr += mach_dulint_write_much_compressed(ptr, index->table->id);
 	/*----------------------------------------*/
 	/* Store then the fields required to uniquely determine the record
 	to be inserted in the clustered index */
 
 	for (i = 0; i < dict_index_get_n_unique(index); i++) {
 
-		field = dtuple_get_nth_field(clust_entry, i);
-
-		flen = dfield_get_len(field);
+		const dfield_t*	field	= dtuple_get_nth_field(clust_entry, i);
+		ulint		flen	= dfield_get_len(field);
 
 		if (trx_undo_left(undo_page, ptr) < 5) {
 
 			return(0);
 		}
 
-		len = mach_write_compressed(ptr, flen);
-		ptr += len;
+		ptr += mach_write_compressed(ptr, flen);
 
 		if (flen != UNIV_SQL_NULL) {
 			if (trx_undo_left(undo_page, ptr) < flen) {
@@ -209,27 +298,192 @@ trx_undo_page_report_insert(
 		}
 	}
 
-	/*----------------------------------------*/
-	/* Write pointers to the previous and the next undo log records */
+	return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr));
+}
 
-	if (trx_undo_left(undo_page, ptr) < 2) {
+/**************************************************************************
+Reports in the undo log of an index create */
+static
+ulint
+trx_undo_page_report_index_create(
+/*==============================*/
+					/* out: offset of the inserted entry
+					on the page if succeed, 0 if fail */
+	page_t*		undo_page,	/* in: undo log page */
+	trx_t*		trx,		/* in: transaction */
+	dict_index_t*	index,		/* in: index */
+	mtr_t*		mtr)		/* in: mtr */
+{
+	byte*		ptr;
 
+	ut_ad(undo_page && trx && index && mtr);
+
+	/* Get the pointer to where we will write our undo data. */
+
+	ptr = trx_undo_page_get_ptr(undo_page, 1 + 11 + 1 + 11 + 11);
+
+	if (UNIV_UNLIKELY(!ptr)) {
 		return(0);
 	}
 
-	mach_write_to_2(ptr, first_free);
-	ptr += 2;
+	/* This is our internal dictionary undo log record. */
+	*ptr++ = TRX_UNDO_DICTIONARY_REC;
 
-	mach_write_to_2(undo_page + first_free, ptr - undo_page);
+	ptr += mach_dulint_write_much_compressed(ptr, trx->undo_no);
 
-	mach_write_to_2(undo_page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE,
-			ptr - undo_page);
+	/* The sub type (discriminator) of this undo dictionary record */
+	*ptr++ = TRX_UNDO_INDEX_CREATE_REC;
 
-	/* Write the log entry to the REDO log of this change in the UNDO
-	log */
-	trx_undof_page_add_undo_rec_log(undo_page, first_free,
-					ptr - undo_page, mtr);
-	return(first_free);
+	/* For index create, we need both the table id and the index id
+	to be stored in the undo log record.*/
+
+	ptr += mach_dulint_write_much_compressed(ptr, index->table->id);
+	ptr += mach_dulint_write_much_compressed(ptr, index->id);
+
+	return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr));
+}
+
+/**************************************************************************
+Reports in the undo log of a table create */
+static
+ulint
+trx_undo_page_report_table_create(
+/*==============================*/
+					/* out: offset of the inserted entry
+					on the page if succeed, 0 if fail */
+	page_t*		undo_page,	/* in: undo log page */
+	trx_t*		trx,		/* in: transaction */
+	const char*	table_name,	/* in: table name */
+	mtr_t*		mtr)		/* in: mtr */
+{
+	byte*		ptr;
+	ulint		name_len;
+
+	ut_ad(undo_page && trx && table_name && mtr);
+
+	name_len = strlen(table_name) + 1;
+
+	/* Get the pointer to where we will write our undo data */
+
+	ptr = trx_undo_page_get_ptr(undo_page, 1 + 11 + 1 + name_len);
+
+	if (UNIV_UNLIKELY(!ptr)) {
+		return(0);
+	}
+
+	/* The type (discriminator) of this undo log */
+	*ptr++ = TRX_UNDO_DICTIONARY_REC;
+
+	ptr += mach_dulint_write_much_compressed(ptr, trx->undo_no);
+
+	/* The sub type (discriminator) of this dictionary undo log */
+	*ptr++ = TRX_UNDO_TABLE_CREATE_REC;
+
+	/* For table create we need to store table name */
+	memcpy(ptr, table_name, name_len);
+	ptr += name_len;
+
+	return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr));
+}
+
+/**************************************************************************
+Reports in the undo log of a table drop */
+static
+ulint
+trx_undo_page_report_table_drop(
+/*============================*/
+					/* out: offset of the inserted entry
+					on the page if succeed, 0 if fail */
+	page_t*		undo_page,	/* in: undo log page */
+	trx_t*		trx,		/* in: transaction */
+	const char*	table_name,	/* in: table name */
+	mtr_t*		mtr)		/* in: mtr */
+{
+	byte*		ptr;
+	ulint		name_len;
+
+	ut_ad(undo_page && trx && table_name && mtr);
+
+	name_len = strlen(table_name) + 1;
+
+	/* Get the pointer to where we will write our undo data */
+
+	ptr = trx_undo_page_get_ptr(undo_page, 1 + 11 + 1 + name_len);
+
+	if (UNIV_UNLIKELY(!ptr)) {
+		return(0);
+	}
+
+	*ptr++ = TRX_UNDO_DICTIONARY_REC;
+
+	ptr += mach_dulint_write_much_compressed(ptr, trx->undo_no);
+
+	/* The sub type (discriminator) of this dictionary undo log */
+	*ptr++ = TRX_UNDO_TABLE_DROP_REC;
+
+	/* For table drop we need to store a table name */
+	memcpy(ptr, table_name, name_len);
+	ptr += name_len;
+
+	return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr));
+}
+
+/**************************************************************************
+Reports in the undo log of a table rename */
+static
+ulint
+trx_undo_page_report_table_rename(
+/*==============================*/
+					/* out: offset of the inserted entry
+					on the page if succeed, 0 if fail */
+	page_t*		undo_page,	/* in: undo log page */
+	trx_t*		trx,		/* in: transaction */
+	const char*	new_table_name,	/* in: new table name */
+	const char*	old_table_name,	/* in: old table name */
+	const char*	tmp_table_name,	/* in: the temp name */
+	mtr_t*		mtr)		/* in: mtr */
+{
+	byte*		ptr;
+	ulint		new_name_len;
+	ulint		old_name_len;
+	ulint		tmp_name_len;
+
+	ut_ad(undo_page && trx && new_table_name && old_table_name && mtr);
+
+	new_name_len = strlen(new_table_name) + 1;
+	old_name_len = strlen(old_table_name) + 1;
+	tmp_name_len = strlen(tmp_table_name) + 1;
+
+	/* Get the pointer to where we will write our undo data. */
+
+	ptr = trx_undo_page_get_ptr(undo_page, 1 + 11 + 1
+				    + new_name_len + old_name_len
+				    + tmp_name_len);
+
+	if (UNIV_UNLIKELY(!ptr)) {
+		return(0);
+	}
+
+	/* The type (discriminator) of this undo log */
+	*ptr++ = TRX_UNDO_DICTIONARY_REC;
+	ptr += mach_dulint_write_much_compressed(ptr, trx->undo_no);
+
+	/* The sub type (discriminator) of this dictionary undo log */
+	*ptr++ = TRX_UNDO_TABLE_RENAME_REC;
+
+	/* For table rename we need to store the new table name and
+	the old table name */
+
+	memcpy(ptr, new_table_name, new_name_len);
+	ptr += new_name_len;
+
+	memcpy(ptr, old_table_name, old_name_len);
+	ptr += old_name_len;
+
+	memcpy(ptr, tmp_table_name, tmp_name_len);
+	ptr += tmp_name_len;
+
+	return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr));
 }
 
 /**************************************************************************
@@ -251,7 +505,6 @@ trx_undo_rec_get_pars(
 	dulint*		table_id)	/* out: table id */
 {
 	byte*		ptr;
-	ulint		len;
 	ulint		type_cmpl;
 
 	ptr = undo_rec + 2;
@@ -270,12 +523,10 @@ trx_undo_rec_get_pars(
 	*cmpl_info = type_cmpl / TRX_UNDO_CMPL_INFO_MULT;
 
 	*undo_no = mach_dulint_read_much_compressed(ptr);
-	len = mach_dulint_get_much_compressed_size(*undo_no);
-	ptr += len;
+	ptr += mach_dulint_get_much_compressed_size(*undo_no);
 
 	*table_id = mach_dulint_read_much_compressed(ptr);
-	len = mach_dulint_get_much_compressed_size(*table_id);
-	ptr += len;
+	ptr += mach_dulint_get_much_compressed_size(*table_id);
 
 	return(ptr);
 }
@@ -671,8 +922,6 @@ trx_undo_update_rec_get_sys_cols(
 	dulint*	roll_ptr,	/* out: roll ptr */
 	ulint*	info_bits)	/* out: info bits state */
 {
-	ulint	len;
-
 	/* Read the state of the info bits */
 	*info_bits = mach_read_from_1(ptr);
 	ptr += 1;
@@ -680,12 +929,10 @@ trx_undo_update_rec_get_sys_cols(
 	/* Read the values of the system columns */
 
 	*trx_id = mach_dulint_read_compressed(ptr);
-	len = mach_dulint_get_compressed_size(*trx_id);
-	ptr += len;
+	ptr += mach_dulint_get_compressed_size(*trx_id);
 
 	*roll_ptr = mach_dulint_read_compressed(ptr);
-	len = mach_dulint_get_compressed_size(*roll_ptr);
-	ptr += len;
+	ptr += mach_dulint_get_compressed_size(*roll_ptr);
 
 	return(ptr);
 }
@@ -1142,6 +1389,189 @@ trx_undo_report_row_operation(
 	return(DB_SUCCESS);
 }
 
+/***************************************************************************
+Writes information to an undo log about dictionary operation e.g.
+rename_table, create_table, create_index, drop table. This information
+is used in a rollback of the transaction. */
+
+ulint
+trx_undo_report_dict_operation(
+/*===========================*/
+					/* out: DB_SUCCESS or error code */
+	ulint		op_type,	/* in: TRX_UNDO_TABLE_CREATE_OP,
+					TRX_UNDO_TABLE_RENAME_OP,
+					TRX_UNDO_TABLE_DROP_OP, or
+					TRX_UNDO_INDEX_CREATE_OP */
+	trx_t*		trx,		/* in: trx */
+	dict_index_t*	index,		/* in:
+					if TRX_UNDO_INDEX_CREATE_OP
+					index to be created*/
+	const char*	table_name,	/* in: table name or NULL, used in
+					create table, rename table and
+					drop table*/
+	const char*	old_table_name,	/* in: old table name or NULL.
+					used in rename table */
+	const char*	tmp_table_name, /* in: the intermediate name used
+					for renaming */
+	dulint*		roll_ptr)	/* out: rollback pointer to the
+					inserted undo log record */
+{
+	trx_undo_t*	undo;
+	buf_block_t*	undo_block;
+	ulint		offset;
+	ulint		page_no;
+	trx_rseg_t*	rseg;
+	mtr_t		mtr;
+
+	ut_ad(trx);
+
+#ifdef UNIV_DEBUG
+	switch (op_type) {
+	case TRX_UNDO_TABLE_RENAME_OP:
+		ut_ad(old_table_name);
+	case TRX_UNDO_TABLE_DROP_OP:
+	case TRX_UNDO_TABLE_CREATE_OP:
+		ut_ad(table_name);
+		break;
+
+	case TRX_UNDO_INDEX_CREATE_OP:
+		ut_ad(index);
+		break;
+	default:
+		ut_error;
+	}
+#endif
+
+	rseg = trx->rseg;
+
+	mutex_enter(&(trx->undo_mutex));
+
+	/* If the undo log is not assigned yet, assign one */
+
+	if (trx->insert_undo == NULL) {
+
+		trx_undo_assign_undo(trx, TRX_UNDO_INSERT);
+	}
+
+	undo = trx->insert_undo;
+
+	if (undo == NULL) {
+		/* Did not succeed: out of space */
+		mutex_exit(&(trx->undo_mutex));
+
+		return(DB_OUT_OF_FILE_SPACE);
+	}
+
+	page_no = undo->last_page_no;
+
+	mtr_start(&mtr);
+
+	for (;;) {
+		undo_block = buf_page_get_gen(undo->space, undo->zip_size,
+					     page_no, RW_X_LATCH,
+					     undo->guess_block, BUF_GET,
+					     __FILE__, __LINE__, &mtr);
+
+#ifdef UNIV_SYNC_DEBUG
+		buf_block_dbg_add_level(undo_block, SYNC_TRX_UNDO_PAGE);
+#endif /* UNIV_SYNC_DEBUG */
+
+		switch (op_type) {
+
+		case TRX_UNDO_TABLE_CREATE_OP:
+			offset = trx_undo_page_report_table_create(
+				undo_block->frame, trx, table_name, &mtr);
+			break;
+
+		case TRX_UNDO_INDEX_CREATE_OP:
+			offset = trx_undo_page_report_index_create(
+				undo_block->frame, trx, index, &mtr);
+			break;
+
+		case TRX_UNDO_TABLE_RENAME_OP:
+			offset = trx_undo_page_report_table_rename(
+				undo_block->frame, trx, table_name,
+				old_table_name, tmp_table_name, &mtr);
+			break;
+
+		case TRX_UNDO_TABLE_DROP_OP:
+			offset = trx_undo_page_report_table_drop(
+				undo_block->frame, trx, table_name, &mtr);
+			break;
+
+		default:
+			ut_print_timestamp(stderr);
+			fprintf(stderr,
+				"  InnoDB: [Error]: Undefined op_type = %lu "
+				"at trx_undo_report_dict_operation\n",
+				(ulong) op_type);
+
+			mutex_enter(&kernel_mutex);
+			trx_print(stderr, trx, 1024);
+			mutex_exit(&kernel_mutex);
+
+			return(DB_ERROR);
+		}
+
+		if (offset == 0) {
+			/* The record did not fit on the page. We erase the
+			end segment of the undo log page and write a log
+			record of it: this is to ensure that in the debug
+			version the replicate page constructed using the log
+			records stays identical to the original page */
+
+			trx_undo_erase_page_end(undo_block->frame, &mtr);
+		}
+
+		mtr_commit(&mtr);
+
+		if (offset != 0) {
+			/* Success */
+
+			break;
+		}
+
+		ut_ad(page_no == undo->last_page_no);
+
+		/* We have to extend the undo log by one page */
+
+		mtr_start(&mtr);
+
+		/* When we add a page to an undo log, this is analogous to
+		a pessimistic insert in a B-tree, and we must reserve the
+		counterpart of the tree latch, which is the rseg mutex. */
+
+		mutex_enter(&(rseg->mutex));
+
+		page_no = trx_undo_add_page(trx, undo, &mtr);
+
+		mutex_exit(&(rseg->mutex));
+
+		if (page_no == FIL_NULL) {
+			/* Did not succeed: out of space */
+
+			mutex_exit(&(trx->undo_mutex));
+			mtr_commit(&mtr);
+
+			return(DB_OUT_OF_FILE_SPACE);
+		}
+	}
+
+	undo->empty = FALSE;
+	undo->top_page_no = page_no;
+	undo->top_offset  = offset;
+	undo->top_undo_no = trx->undo_no;
+	undo->guess_block = undo_block;
+
+	UT_DULINT_INC(trx->undo_no);
+
+	mutex_exit(&(trx->undo_mutex));
+
+	*roll_ptr = trx_undo_build_roll_ptr(TRUE, rseg->id, page_no, offset);
+
+	return(DB_SUCCESS);
+}
+
 /*============== BUILDING PREVIOUS VERSION OF A RECORD ===============*/
 
 /**********************************************************************

trx/trx0roll.c

@@ -425,7 +425,8 @@ trx_rollback_or_clean_all_without_sess(
 	dict_table_t*	table;
 	ib_longlong	rows_to_undo;
 	const char*	unit		= "";
-	int		err;
+	int		err = DB_SUCCESS;
+	ibool		dictionary_locked = FALSE;
 
 	mutex_enter(&kernel_mutex);
 
@@ -530,8 +531,10 @@ loop:
 
 	trx->mysql_process_no = os_proc_get_number();
 
+	/* TODO: Doesn't seem right */
 	if (trx->dict_operation) {
 		row_mysql_lock_data_dictionary(trx);
+		dictionary_locked = TRUE;
 	}
 
 	que_run_threads(thr);
@@ -552,7 +555,8 @@ loop:
 
 	mutex_exit(&kernel_mutex);
 
-	if (trx->dict_operation) {
+	if (trx->dict_operation && !ut_dulint_is_zero(trx->table_id)) {
+
 		/* If the transaction was for a dictionary operation, we
 		drop the relevant table, if it still exists */
 
@@ -573,9 +577,35 @@ loop:
 
 			ut_a(err == (int) DB_SUCCESS);
 		}
+	} else if (trx->dict_undo_list) {
+
+		dict_undo_t*	dict_undo;
+
+		ut_a(trx->dict_undo_list);
+
+		dict_undo = UT_LIST_GET_FIRST(*trx->dict_undo_list);
+
+		fputs("InnoDB: UNDO dict entries\n", stderr);
+
+		while (dict_undo && err == DB_SUCCESS) {
+
+			dict_undo = UT_LIST_GET_NEXT(node, dict_undo);
+
+			if (dict_undo) {
+				err = row_undo_dictionary(trx, dict_undo);
+			}
 		}
 
-	if (trx->dict_operation) {
+		ut_a(err == (int) DB_SUCCESS);
+
+		dict_undo_free_list(trx);
+
+		mutex_enter(&kernel_mutex);
+		trx_commit_off_kernel(trx);
+		mutex_exit(&kernel_mutex);
+	}
+
+	if (dictionary_locked) {
 		row_mysql_unlock_data_dictionary(trx);
 	}
 
@@ -1245,7 +1275,11 @@ trx_finish_rollback_off_kernel(
 	}
 #endif /* UNIV_DEBUG */
 
+	/* If there are dict UNDO records that need to be undone then
+	we commit the transaction after these dictionary changes are undone.*/
+	if (!trx->dict_undo_list) {
 		trx_commit_off_kernel(trx);
+	}
 
 	/* Remove all TRX_SIG_TOTAL_ROLLBACK signals from the signal queue and
 	send reply messages to them */

trx/trx0trx.c

@@ -127,6 +127,10 @@ trx_create(
 	trx->must_flush_log_later = FALSE;
 
 	trx->dict_operation = FALSE;
+	trx->table_id = ut_dulint_create(0, 0);
+	trx->dict_undo_list = NULL;
+	trx->dict_redo_list = NULL;
+	trx->sync_cb = NULL;
 
 	trx->mysql_thd = NULL;
 	trx->mysql_query_str = NULL;
@@ -153,6 +157,7 @@ trx_create(
 	trx->undo_no_arr = NULL;
 
 	trx->error_state = DB_SUCCESS;
+	trx->error_key_num = 0;
 	trx->detailed_error[0] = '\0';
 
 	trx->sess = sess;
@@ -349,6 +354,8 @@ trx_free(
 	trx->global_read_view = NULL;
 
 	ut_a(trx->read_view == NULL);
+	ut_a(trx->dict_undo_list == NULL);
+	ut_a(trx->dict_redo_list == NULL);
 
 	mem_free(trx);
 }
@@ -740,6 +747,10 @@ trx_commit_off_kernel(
 
 	ut_ad(mutex_own(&kernel_mutex));
 
+	/* Can't commit if we have dictionary UNDO records */
+	ut_a(!trx->dict_undo_list);
+	ut_a(!trx->dict_redo_list);
+
 	trx->must_flush_log_later = FALSE;
 
 	rseg = trx->rseg;
@@ -1558,6 +1569,14 @@ trx_commit_for_mysql(
 
 	ut_a(trx);
 
+	if (trx->sync_cb) {
+		ulint	err;
+
+		err = trx->sync_cb(trx, TRUE);
+		ut_a(err);
+		trx->sync_cb = NULL;
+	}
+
 	trx->op_info = "committing";
 
 	/* If we are doing the XA recovery of prepared transactions, then