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Fixed bug mdev-518.

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If some statistical tables are corrupted the server should use
the conventional statistical data.
This commit is contained in:
Igor Babaev
2012-09-11 22:36:04 -07:00
parent ff36e9fc51
commit 2bbcec4148
4 changed files with 61 additions and 3 deletions
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16
mysql-test/r/stat_tables_innodb.result
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@ -391,6 +391,22 @@ ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
DROP TABLE t1;
#
# Bug mdev-518: corrupted/missing statistical tables
#
CREATE TABLE t1 (i int) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1),(2);
FLUSH TABLE t1;
SET use_stat_tables='never';
EXPLAIN SELECT * FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
FLUSH TABLES;
SET use_stat_tables='preferably';
EXPLAIN SELECT * FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
DROP TABLE t1;
set use_stat_tables=@save_use_stat_tables;
set optimizer_switch=@save_optimizer_switch_for_stat_tables_test;
SET SESSION STORAGE_ENGINE=DEFAULT;