diff options
Diffstat (limited to 'mysql-test/main/explain_json.test')
| -rw-r--r-- | mysql-test/main/explain_json.test | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mysql-test/main/explain_json.test b/mysql-test/main/explain_json.test index 3767939d3e3..07e4ec09ad4 100644 --- a/mysql-test/main/explain_json.test +++ b/mysql-test/main/explain_json.test @@ -429,3 +429,17 @@ explain FORMAT=JSON SELECT * FROM t1 t0 WHERE t0.a IN (SELECT t2.a FROM t1 t2 WHERE t0.a IN (SELECT t3.a FROM t1 t3)); DROP TABLE t1; + +--echo # +--echo # MDEV-27206: [ERROR] Duplicated key: cause, Assertion `is_uniq_key' failed with optimizer trace +--echo # + +CREATE TABLE t1 (a INT) ENGINE=MyISAM; +CREATE TABLE t2 (pk TIME, b INT, primary key (pk), key (b)) ENGINE=MyISAM; +INSERT INTO t2 VALUES + ('00:13:33',0),('00:13:34',1),('00:13:35',2),('00:13:36',3), + ('00:13:37',4),('00:13:38',5),('00:13:39',6),('00:13:40',7), + ('00:13:41',8),('00:13:42',9); +SET optimizer_trace = 'enabled=on'; +SELECT * FROM t1 WHERE a IN ( SELECT b FROM t2 INNER JOIN t1 ON (a = pk) ); +DROP TABLE t1, t2;
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