diff options
Diffstat (limited to 'sql/sql_update.cc')
| -rw-r--r-- | sql/sql_update.cc | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sql/sql_update.cc b/sql/sql_update.cc index 6ca794283f1..0ec71bdfba3 100644 --- a/sql/sql_update.cc +++ b/sql/sql_update.cc @@ -57,11 +57,11 @@ int mysql_update(THD *thd, enum enum_duplicates handle_duplicates, bool ignore) { - bool using_limit=limit != HA_POS_ERROR; + bool using_limit=limit != HA_POS_ERROR; bool safe_update= thd->options & OPTION_SAFE_UPDATES; bool used_key_is_modified, transactional_table, log_delayed; int error=0; - uint used_index= MAX_KEY; + uint used_index; #ifndef NO_EMBEDDED_ACCESS_CHECKS uint want_privilege; #endif @@ -71,7 +71,7 @@ int mysql_update(THD *thd, TABLE *table; SQL_SELECT *select; READ_RECORD info; - TABLE_LIST *update_table_list= ((TABLE_LIST*) + TABLE_LIST *update_table_list= ((TABLE_LIST*) thd->lex->select_lex.table_list.first); DBUG_ENTER("mysql_update"); @@ -159,10 +159,11 @@ int mysql_update(THD *thd, init_ftfuncs(thd, &thd->lex->select_lex, 1); /* Check if we are modifying a key that we are used to search with */ if (select && select->quick) + { + used_index=select->quick->index; used_key_is_modified= (!select->quick->unique_key_range() && - check_if_key_used(table, - (used_index=select->quick->index), - fields)); + check_if_key_used(table, used_index, fields)); + } else if ((used_index=table->file->key_used_on_scan) < MAX_KEY) used_key_is_modified=check_if_key_used(table, used_index, fields); else |