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Awoiding registering partiton engine underlying tables whan it has no sens.

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unknown 2012-07-24 17:50:06 +03:00
commit a742d49c90
1 changed files with 13 additions and 2 deletions
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15
sql/ha_partition.cc
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@ -2080,9 +2080,16 @@ uint ha_partition::count_query_cache_dependant_tables(uint8 *tables_type)
{
DBUG_ENTER("ha_partition::count_query_cache_dependant_tables");
/* Here we rely on the fact that all tables are of the same type */
(*tables_type)|= m_file[0]->table_cache_type();
uint8 type= m_file[0]->table_cache_type();
(*tables_type)|= type;
DBUG_PRINT("info", ("cnt: %u", (uint)m_tot_parts));
DBUG_RETURN(m_tot_parts);
/*
We need save underlying tables only for HA_CACHE_TBL_ASKTRANSACT:
HA_CACHE_TBL_NONTRANSACT - because all changes goes through partition table
HA_CACHE_TBL_NOCACHE - because will not be cached
HA_CACHE_TBL_TRANSACT - QC need to know that such type present
*/
DBUG_RETURN(type == HA_CACHE_TBL_ASKTRANSACT ? m_tot_parts : 0);
}
my_bool ha_partition::reg_query_cache_dependant_table(THD *thd,
@ -2139,6 +2146,10 @@ my_bool ha_partition::register_query_cache_dependant_tables(THD *thd,
DBUG_ENTER("ha_partition::register_query_cache_dependant_tables");
/* see ha_partition::count_query_cache_dependant_tables */
if (m_file[0]->table_cache_type() != HA_CACHE_TBL_ASKTRANSACT)
DBUG_RETURN(FALSE); // nothing to register
/* prepare static part of the key */
memmove(key, table_share->table_cache_key.str,
table_share->table_cache_key.length);