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Merge

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tomas@poseidon.ndb.mysql.com
2005-10-06 10:54:07 +02:00
parent 418808ba9a 3af12c4776
commit 620b7bafb0
449 changed files with 13079 additions and 6107 deletions
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106
sql/sql_base.cc
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@ -1327,6 +1327,8 @@ TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT *mem_root,
table->keys_in_use_for_query= table->s->keys_in_use;
table->insert_values= 0;
table->used_keys= table->s->keys_for_keyread;
table->fulltext_searched= 0;
table->file->ft_handler= 0;
if (table->timestamp_field)
table->timestamp_field_type= table->timestamp_field->get_auto_set_type();
table_list->updatable= 1; // It is not derived table nor non-updatable VIEW
@ -2146,7 +2148,7 @@ static bool check_lock_and_start_stmt(THD *thd, TABLE *table,
my_error(ER_TABLE_NOT_LOCKED_FOR_WRITE, MYF(0),table->alias);
DBUG_RETURN(1);
}
if ((error=table->file->start_stmt(thd)))
if ((error=table->file->start_stmt(thd, lock_type)))
{
table->file->print_error(error,MYF(0));
DBUG_RETURN(1);
@ -2953,6 +2955,18 @@ find_field_in_table(THD *thd, TABLE *table, const char *name, uint length,
belongs - differs from 'table_list' only for
NATURAL_USING joins.
DESCRIPTION
Find a field in a table reference depending on the type of table
reference. There are three types of table references with respect
to the representation of their result columns:
- an array of Field_translator objects for MERGE views and some
information_schema tables,
- an array of Field objects (and possibly a name hash) for stored
tables,
- a list of Natural_join_column objects for NATURAL/USING joins.
This procedure detects the type of the table reference 'table_list'
and calls the corresponding search routine.
RETURN
0 field is not found
view_ref_found found value in VIEW (real result is in *ref)
@ -2976,16 +2990,29 @@ find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
/*
Check that the table and database that qualify the current field name
are the same as the table we are going to search for the field.
This is done differently for NATURAL/USING joins or nested joins that
are operands of NATURAL/USING joins because there we can't simply
compare the qualifying table and database names with the ones of
'table_list' because each field in such a join may originate from a
different table.
are the same as the table reference we are going to search for the field.
Exclude from the test below nested joins because the columns in a
nested join generally originate from different tables. Nested joins
also have no table name, except when a nested join is a merge view
or an information schema table.
We include explicitly table references with a 'field_translation' table,
because if there are views over natural joins we don't want to search
inside the view, but we want to search directly in the view columns
which are represented as a 'field_translation'.
TODO: Ensure that table_name, db_name and tables->db always points to
something !
*/
if (!(table_list->nested_join && table_list->join_columns) &&
if (/* Exclude nested joins. */
(!table_list->nested_join ||
/* Include merge views and information schema tables. */
table_list->field_translation) &&
/*
Test if the field qualifiers match the table reference we plan
to search.
*/
table_name && table_name[0] &&
(my_strcasecmp(table_alias_charset, table_list->alias, table_name) ||
(db_name && db_name[0] && table_list->db && table_list->db[0] &&
@ -2993,25 +3020,45 @@ find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
DBUG_RETURN(0);
*actual_table= NULL;
if (table_list->field_translation)
{
/* 'table_list' is a view or an information schema table. */
if ((fld= find_field_in_view(thd, table_list, name, item_name, length,
ref, check_grants_view,
register_tree_change)))
*actual_table= table_list;
}
else if (table_list->nested_join && table_list->join_columns)
else if (!table_list->nested_join)
{
/* 'table_list' is a stored table. */
DBUG_ASSERT(table_list->table);
if ((fld= find_field_in_table(thd, table_list->table, name, length,
check_grants_table, allow_rowid,
cached_field_index_ptr)))
*actual_table= table_list;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
/* check for views with temporary table algorithm */
if (check_grants_view && table_list->view &&
fld && fld != WRONG_GRANT &&
check_grant_column(thd, &table_list->grant,
table_list->view_db.str,
table_list->view_name.str,
name, length))
fld= WRONG_GRANT;
#endif
}
else
{
/*
If this is a NATURAL/USING join, or an operand of such join which is a
join itself, and the field name is qualified, then search for the field
in the operands of the join.
'table_list' is a NATURAL/USING join, or an operand of such join that
is a nested join itself.
If the field name we search for is qualified, then search for the field
in the table references used by NATURAL/USING the join.
*/
if (table_name && table_name[0])
{
/*
Qualified field; Search for it in the tables used by the natural join.
*/
List_iterator<TABLE_LIST> it(table_list->nested_join->join_list);
TABLE_LIST *table;
while ((table= it++))
@ -3037,23 +3084,6 @@ find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
check_grants_table || check_grants_view,
register_tree_change, actual_table);
}
else
{
if ((fld= find_field_in_table(thd, table_list->table, name, length,
check_grants_table, allow_rowid,
cached_field_index_ptr)))
*actual_table= table_list;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
/* check for views with temporary table algorithm */
if (check_grants_view && table_list->view &&
fld && fld != WRONG_GRANT &&
check_grant_column(thd, &table_list->grant,
table_list->view_db.str,
table_list->view_name.str,
name, length))
fld= WRONG_GRANT;
#endif
}
DBUG_RETURN(fld);
}
@ -3364,9 +3394,9 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
for (uint i= 0; (item=li++); i++)
{
if (field_name && item->type() == Item::FIELD_ITEM)
if (field_name && item->real_item()->type() == Item::FIELD_ITEM)
{
Item_field *item_field= (Item_field*) item;
Item_ident *item_field= (Item_ident*) item;
/*
In case of group_concat() with ORDER BY condition in the QUERY
@ -3466,7 +3496,7 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
}
}
}
else if (!table_name && (item->eq(find,0) ||
else if (!table_name && (find->eq(item,0) ||
find->name && item->name &&
!my_strcasecmp(system_charset_info,
item->name,find->name)))
@ -4617,7 +4647,8 @@ insert_fields(THD *thd, Name_resolution_context *context, const char *db_name,
VIEW_ANY_ACL)))
{
my_error(ER_COLUMNACCESS_DENIED_ERROR, MYF(0), "ANY",
thd->priv_user, thd->host_or_ip,
thd->security_ctx->priv_user,
thd->security_ctx->host_or_ip,
fld->field_name, field_table_name);
DBUG_RETURN(TRUE);
}
@ -4805,9 +4836,6 @@ int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
}
DBUG_RETURN(test(thd->net.report_error));
err:
if (arena)
thd->restore_active_arena(arena, &backup);
err_no_arena:
DBUG_RETURN(1);
}