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Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication sync0sync.c: UNIV_SYNC_DEBUG caused assertion in the creation of the doublewrite buffer, if we do not allow thousands of latches per thread innobase/dict/dict0crea.c: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/dict/dict0dict.c: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/include/dict0crea.h: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/include/dict0dict.h: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/include/ut0mem.h: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/row/row0mysql.c: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication innobase/sync/sync0sync.c: UNIV_SYNC_DEBUG caused assertion in the creation of the doublewrite buffer, if we do not allow thousands of latches per thread innobase/ut/ut0mem.c: Fix bug #2167: generate foreign key id's locally for each table, in the form databasename/tablename_ibfk_number; if the user gives the constraint name explicitly remember it; these changes should ensure that foreign key id's in a slave are the same as in the master, and DROP FOREIGN KEY does not break replication
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@ -2221,6 +2221,7 @@ row_rename_table_for_mysql(
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ulint keywordlen;
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ulint len;
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ulint i;
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char* db_name;
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char buf[10000];
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ut_ad(trx->mysql_thread_id == os_thread_get_curr_id());
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@ -2285,6 +2286,15 @@ row_rename_table_for_mysql(
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"PROCEDURE RENAME_TABLE_PROC () IS\n"
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"new_table_name CHAR;\n"
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"old_table_name CHAR;\n"
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"gen_constr_prefix CHAR;\n"
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"new_db_name CHAR;\n"
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"foreign_id CHAR;\n"
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"new_foreign_id CHAR;\n"
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"old_db_name_len INT;\n"
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"old_t_name_len INT;\n"
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"new_db_name_len INT;\n"
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"id_len INT;\n"
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"found INT;\n"
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"BEGIN\n"
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"new_table_name :='";
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@ -2311,32 +2321,94 @@ row_rename_table_for_mysql(
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}
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str3 = mem_heap_alloc(heap,
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1000 + 500 * n_constraints_to_drop);
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1000 + 1000 * n_constraints_to_drop);
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*str3 = '\0';
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sprintf(str3,
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"';\n"
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"UPDATE SYS_TABLES SET NAME = new_table_name\n"
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"WHERE NAME = old_table_name;\n");
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db_name = mem_heap_alloc(heap, 1 + dict_get_db_name_len(
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old_name));
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ut_memcpy(db_name, old_name, dict_get_db_name_len(old_name));
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db_name[dict_get_db_name_len(old_name)] = '\0';
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/* Internally, old format < 4.0.18 constraints have as the
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constraint id <number>_<number>, while new format constraints
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have <databasename>/<constraintname>. */
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for (i = 0; i < n_constraints_to_drop; i++) {
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sprintf(str3 + strlen(str3),
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"DELETE FROM SYS_FOREIGN_COLS WHERE ID = '%s';\n"
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"DELETE FROM SYS_FOREIGN WHERE ID = '%s';\n",
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"DELETE FROM SYS_FOREIGN_COLS WHERE ID = '%s/%s';\n"
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"DELETE FROM SYS_FOREIGN WHERE ID = '%s/%s';\n",
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db_name, constraints_to_drop[i],
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db_name, constraints_to_drop[i]);
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if (!ut_str_contains(constraints_to_drop[i], '/')) {
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/* If this happens to be an old format
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constraint, let us delete it. Since all new
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format constraints contain '/', it does no
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harm to run these DELETEs anyway. */
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sprintf(str3 + strlen(str3),
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"DELETE FROM SYS_FOREIGN_COLS WHERE ID = '%s';\n"
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"DELETE FROM SYS_FOREIGN WHERE ID = '%s';\n",
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constraints_to_drop[i],
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constraints_to_drop[i]);
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}
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}
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sprintf(str3 + strlen(str3),
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"END;\n");
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ut_a(strlen(str3) < 1000 + 500 * n_constraints_to_drop);
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ut_a(strlen(str3) < 1000 + 1000 * n_constraints_to_drop);
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} else {
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str3 = (char*)
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"';\n"
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"UPDATE SYS_TABLES SET NAME = new_table_name\n"
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"WHERE NAME = old_table_name;\n"
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"UPDATE SYS_FOREIGN SET FOR_NAME = new_table_name\n"
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"WHERE FOR_NAME = old_table_name;\n"
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"found := 1;\n"
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"old_db_name_len := INSTR(old_table_name, '/') - 1;\n"
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"new_db_name_len := INSTR(new_table_name, '/') - 1;\n"
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"new_db_name := SUBSTR(new_table_name, 0, new_db_name_len);\n"
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"old_t_name_len := LENGTH(old_table_name);\n"
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"gen_constr_prefix := CONCAT(old_table_name, '_ibfk_');\n"
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"WHILE found = 1 LOOP\n"
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" SELECT ID INTO foreign_id\n"
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" FROM SYS_FOREIGN\n"
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" WHERE FOR_NAME = old_table_name;\n"
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" IF (SQL % NOTFOUND) THEN\n"
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" found := 0;\n"
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" ELSE\n"
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" UPDATE SYS_FOREIGN\n"
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" SET FOR_NAME = new_table_name\n"
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" WHERE ID = foreign_id;\n"
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" id_len := LENGTH(foreign_id);\n"
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" IF (INSTR(foreign_id, '/') > 0) THEN\n"
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" IF (INSTR(foreign_id,\n"
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" gen_constr_prefix) > 0)\n"
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" THEN\n"
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" new_foreign_id :=\n"
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" CONCAT(new_table_name,\n"
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" SUBSTR(foreign_id, old_t_name_len,\n"
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" id_len - old_t_name_len));\n"
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" ELSE\n"
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" new_foreign_id :=\n"
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" CONCAT(new_db_name,\n"
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" SUBSTR(foreign_id,\n"
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" old_db_name_len,\n"
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" id_len - old_db_name_len));\n"
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" END IF;\n"
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" UPDATE SYS_FOREIGN\n"
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" SET ID = new_foreign_id\n"
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" WHERE ID = foreign_id;\n"
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" UPDATE SYS_FOREIGN_COLS\n"
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" SET ID = new_foreign_id\n"
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" WHERE ID = foreign_id;\n"
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" END IF;\n"
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" END IF;\n"
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"END LOOP;\n"
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"UPDATE SYS_FOREIGN SET REF_NAME = new_table_name\n"
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"WHERE REF_NAME = old_table_name;\n"
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"END;\n";
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