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| author | unknown <gkodinov/kgeorge@magare.gmz> | 2007-05-22 15:58:30 +0300 |
|---|---|---|
| committer | unknown <gkodinov/kgeorge@magare.gmz> | 2007-05-22 15:58:30 +0300 |
| commit | 3332b80130172656c1e483e5bc9aa2bcfe741a8f (patch) | |
| tree | 08d9d02d66f614e32a6d645cfda994fa73990360 /mysql-test/r/key.result | |
| parent | b015146e41590e7202c9ab128124b20a3521164c (diff) | |
| download | mariadb-git-3332b80130172656c1e483e5bc9aa2bcfe741a8f.tar.gz | |
Bug #28476: force index on a disabled myisam index gives error 124
When processing the USE/FORCE index hints
the optimizer was not checking if the indexes
specified are enabled (see ALTER TABLE).
Fixed by:
Backporting the fix for bug 20604 to 5.0
mysql-test/r/key.result:
Test for BUG 20604.
The important part of the test is the explain output that
tests what indexes are used.
mysql-test/r/myisam.result:
Bug #28476: test cases
mysql-test/t/key.test:
Bug 20604:
The minimal test case that reveals the bug. The optimizer for
aggregates relies on keys disabled with ALTER TABLE ... DISABLE KEYS
not being in the set TABLE::keys_in_use_for_query.
When the execution engine tries to use a disabled index, MyISAM
returns an error.
mysql-test/t/myisam.test:
Bug #28476: test cases
sql/sql_base.cc:
Bug #28476:
- Ignore disabled indexes in USE/FORCE index
sql/sql_select.cc:
Bug 20604 : The intersection operation between table->s->keys_in_use
and table->keys_in_use_for_query is no longer necessary.
We can trust that the latter is a subset of the former.
sql/table.h:
Bug 20604:
Added comments to TABLE_SHARE::keys_in_use and
TABLE::keys_in_use_for_query.
Diffstat (limited to 'mysql-test/r/key.result')
| -rw-r--r-- | mysql-test/r/key.result | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/r/key.result b/mysql-test/r/key.result index ec15eaa97f5..3abc95ec3bf 100644 --- a/mysql-test/r/key.result +++ b/mysql-test/r/key.result @@ -455,3 +455,11 @@ ORDER BY c.b, c.d a b c d e f g h i j a b c d 2 2 1 2004-11-30 12:00:00 1 0 0 0 0 0 2 3388000 -553000 NULL DROP TABLE t1, t2; +CREATE TABLE t1( a TINYINT, KEY(a) ) ENGINE=MyISAM; +INSERT INTO t1 VALUES( 1 ); +ALTER TABLE t1 DISABLE KEYS; +EXPLAIN SELECT MAX(a) FROM t1 FORCE INDEX(a); +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 +DROP TABLE t1; +End of 5.0 tests. |