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| author | sergefp@mysql.com <> | 2007-03-28 20:16:01 +0400 |
|---|---|---|
| committer | sergefp@mysql.com <> | 2007-03-28 20:16:01 +0400 |
| commit | a8d439728fb3d4c02cbecd989b4df41dae01134b (patch) | |
| tree | 3ea48ea27575027dc1a667aac7ea5df91b2af2b2 /mysql-test/t/range.test | |
| parent | ce3f182604e9949fdb03347ca4879b3b254816f7 (diff) | |
| download | mariadb-git-a8d439728fb3d4c02cbecd989b4df41dae01134b.tar.gz | |
BUG#26624: high mem usage (crash) in range optimizer
- Added PARAM::alloced_sel_args where we count the # of SEL_ARGs
created by SEL_ARG tree cloning operations.
- Made the range analyzer to shortcut and not do any more cloning
if we've already created MAX_SEL_ARGS SEL_ARG objects in cloning.
- Added comments about space complexity of SEL_ARG-graph
representation.
Diffstat (limited to 'mysql-test/t/range.test')
| -rw-r--r-- | mysql-test/t/range.test | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mysql-test/t/range.test b/mysql-test/t/range.test index 68ba43a8ba9..1e4cb91c03f 100644 --- a/mysql-test/t/range.test +++ b/mysql-test/t/range.test @@ -563,4 +563,36 @@ SELECT s.oxid FROM t1 v, t1 s DROP TABLE t1; +# BUG#26624 high mem usage (crash) in range optimizer (depends on order of fields in where) +create table t1 ( + c1 char(10), c2 char(10), c3 char(10), c4 char(10), + c5 char(10), c6 char(10), c7 char(10), c8 char(10), + c9 char(10), c10 char(10), c11 char(10), c12 char(10), + c13 char(10), c14 char(10), c15 char(10), c16 char(10), + index(c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12,c13,c14,c15,c16) +); + +insert into t1 (c1) values ('1'),('1'),('1'),('1'); + +# This must run without crash and fast: +select * from t1 where + c1 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c2 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c3 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c4 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c5 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c6 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c7 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c8 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c9 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c10 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c11 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c12 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c13 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c14 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c15 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") + and c16 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh") +; +drop table t1; + --echo End of 4.1 tests |