database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Bug#15130: CREATE .. SELECT was denied to use advantages of the SQL_BIG_RESULT.

Browse Source 
When the SQL_BIG_RESULT flag is specified SELECT should store items from the
select list in the filesort data and use them when sending to a client.
The get_addon_fields function is responsible for creating necessary structures
for that. But this function was allowed to do so only for SELECT and
INSERT .. SELECT queries. This makes the SQL_BIG_RESULT useless for
the CREATE .. SELECT queries.

Now the get_addon_fields allows storing select list items in the filesort
data for the CREATE .. SELECT queries.
This commit is contained in:
evgen@moonbone.local
2007-07-24 18:15:44 +04:00
parent 33518801fb
commit fd1a43b080
3 changed files with 25 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
mysql-test/r/create.result
View File

@ -1503,4 +1503,17 @@ t1 CREATE TABLE `t1` (
`c17` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1(f1 int,f2 int);
insert into t1 value(1,1),(1,2),(1,3),(2,1),(2,2),(2,3);
flush status;
create table t2 select sql_big_result f1,count(f2) from t1 group by f1;
show status like 'handler_read%';
Variable_name Value
Handler_read_first 0
Handler_read_key 0
Handler_read_next 0
Handler_read_prev 0
Handler_read_rnd 0
Handler_read_rnd_next 7
drop table t1,t2;
End of 5.0 tests