diff options
Diffstat (limited to 'sql/sql_cache.cc')
| -rw-r--r-- | sql/sql_cache.cc | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/sql/sql_cache.cc b/sql/sql_cache.cc index 64c62345182..59430d6a486 100644 --- a/sql/sql_cache.cc +++ b/sql/sql_cache.cc @@ -743,11 +743,11 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used) if (query_cache_size == 0) DBUG_VOID_RETURN; - if ((local_tables = is_cacheable(thd, thd->query_length, + if ((local_tables= is_cacheable(thd, thd->query_length, thd->query, &thd->lex, tables_used))) { - NET *net = &thd->net; - byte flags = (thd->client_capabilities & CLIENT_LONG_FLAG ? 0x80 : 0); + NET *net= &thd->net; + byte flags= (thd->client_capabilities & CLIENT_LONG_FLAG ? 0x80 : 0); STRUCT_LOCK(&structure_guard_mutex); if (query_cache_size == 0) @@ -775,8 +775,10 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used) flags|= (byte) thd->variables.convert_set->number(); DBUG_ASSERT(thd->variables.convert_set->number() < 128); } - tot_length=thd->query_length+thd->db_length+2; - thd->query[tot_length-1] = (char) flags; + tot_length= thd->query_length+thd->db_length+2+sizeof(ha_rows); + thd->query[tot_length-1]= (char) flags; + memcpy((void *)(thd->query + (tot_length-sizeof(ha_rows)-1)), + (const void *)&thd->variables.select_limit, sizeof(ha_rows)); /* Check if another thread is processing the same query? */ Query_cache_block *competitor = (Query_cache_block *) @@ -910,7 +912,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) } Query_cache_block *query_block; - tot_length=query_length+thd->db_length+2; + tot_length= query_length+thd->db_length+2+sizeof(ha_rows); if (thd->db_length) { memcpy(sql+query_length+1, thd->db, thd->db_length); @@ -926,15 +928,18 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) Most significant bit - CLIENT_LONG_FLAG, Other - charset number (0 no charset convertion) */ - flags = (thd->client_capabilities & CLIENT_LONG_FLAG ? 0x80 : 0); + flags= (thd->client_capabilities & CLIENT_LONG_FLAG ? 0x80 : 0); if (thd->variables.convert_set != 0) { - flags |= (byte) thd->variables.convert_set->number(); + flags|= (byte) thd->variables.convert_set->number(); DBUG_ASSERT(thd->variables.convert_set->number() < 128); } - sql[tot_length-1] = (char) flags; - query_block = (Query_cache_block *) hash_search(&queries, (byte*) sql, + sql[tot_length-1]= (char) flags; + memcpy((void *)(sql + (tot_length-sizeof(ha_rows)-1)), + (const void *)&thd->variables.select_limit, sizeof(ha_rows)); + query_block= (Query_cache_block *) hash_search(&queries, (byte*) sql, tot_length); + /* Quick abort on unlocked data */ if (query_block == 0 || query_block->query()->result() == 0 || @@ -2439,7 +2444,7 @@ TABLE_COUNTER_TYPE Query_cache::is_cacheable(THD *thd, uint32 query_len, if (lex->sql_command == SQLCOM_SELECT && (thd->variables.query_cache_type == 1 || - (thd->variables.query_cache_type == 2 && (lex->select->options & + (thd->variables.query_cache_type == 2 && (lex->select_lex.options & OPTION_TO_QUERY_CACHE))) && thd->safe_to_cache_query) { |