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automerge

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This commit is contained in:
Georgi Kodinov 2009-06-15 17:36:51 +03:00
commit 3fe572dd06
3 changed files with 65 additions and 0 deletions
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26
mysql-test/include/index_merge1.inc
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@ -527,4 +527,30 @@ where exists (select 1 from t2, t3
drop table t0, t1, t2, t3;
--echo #
--echo # BUG#44810: index merge and order by with low sort_buffer_size
--echo # crashes server!
--echo #
CREATE TABLE t1(a VARCHAR(128),b VARCHAR(128),KEY(A),KEY(B));
INSERT INTO t1 VALUES (REPEAT('a',128),REPEAT('b',128));
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
SET SESSION sort_buffer_size=1;
EXPLAIN
SELECT * FROM t1 FORCE INDEX(a,b) WHERE a LIKE 'a%' OR b LIKE 'b%'
ORDER BY a,b;
# we don't actually care about the result : we're checking if it crashes
--disable_result_log
SELECT * FROM t1 FORCE INDEX(a,b) WHERE a LIKE 'a%' OR b LIKE 'b%'
ORDER BY a,b;
--enable_result_log
SET SESSION sort_buffer_size=DEFAULT;
DROP TABLE t1;
--echo End of 5.0 tests