database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-12-24 11:21:21 +03:00
Code Activity

BUG#5390 - problems with merge tables

Browse Source 
Problem #1: INSERT...SELECT, Version for 4.1.
INSERT ... SELECT with the same table on both sides (hidden
below a MERGE table) does now work by buffering the select result.
The duplicate detection works now after open_and_lock_tables() 
on the locks.
I did not find a test case that failed without the change in
sql_update.cc. I made the change anyway as it should in theory
fix a possible MERGE table problem with multi-table update.
This commit is contained in:
ingo@mysql.com
2005-12-07 19:52:26 +01:00
parent 7ce92291f0
commit 5aa315e23a
8 changed files with 169 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
mysql-test/t/merge.test
View File

@@ -350,4 +350,30 @@ INSERT INTO t2 (b) VALUES (1) ON DUPLICATE KEY UPDATE b=3;
SELECT b FROM t2;
DROP TABLE t1, t2;
#
# BUG#5390 - problems with merge tables
# Problem #1: INSERT...SELECT
#
#drop table if exists t1, t2, t3;
create table t1(a int);
create table t2(a int);
insert into t1 values (1);
insert into t2 values (2);
create table t3 (a int) engine=merge union=(t1, t2) insert_method=first;
select * from t3;
#
insert t2 select * from t2;
select * from t2;
#
insert t3 select * from t1;
select * from t3;
#
insert t1 select * from t3;
select * from t1;
select * from t2;
select * from t3;
check table t1, t2;
drop table t1, t2, t3;
# End of 4.1 tests