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BUG#5390 - problems with merge tables

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Problem #1: INSERT...SELECT, Version for 5.0.
Extended the unique table check by a check of lock data.
Merge sub-tables cannot be detected by doing name checks only.
This commit is contained in:
ingo@mysql.com 2005-12-20 16:35:05 +01:00
commit b0e84cb999
12 changed files with 219 additions and 41 deletions
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7
sql/sql_update.cc
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@ -616,7 +616,7 @@ bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
/* Check that we are not using table that we are updating in a sub select */
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(table_list, table_list->next_global)))
if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
{
update_non_unique_table_error(table_list, "UPDATE", duplicate);
my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
@ -839,7 +839,7 @@ reopen_tables:
tl->lock_type != TL_READ_NO_INSERT)
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(tl, table_list)))
if ((duplicate= unique_table(thd, tl, table_list)))
{
update_non_unique_table_error(table_list, "UPDATE", duplicate);
DBUG_RETURN(TRUE);
@ -1026,8 +1026,7 @@ int multi_update::prepare(List<Item> &not_used_values,
{
TABLE *table=table_ref->table;
if (!(tables_to_update & table->map) &&
find_table_in_local_list(update_tables, table_ref->db,
table_ref->table_name))
unique_table(thd, table_ref, update_tables))
table->no_cache= 1; // Disable row cache
}
DBUG_RETURN(thd->is_fatal_error != 0);