diff options
Diffstat (limited to 'mysql-test/main/derived_cond_pushdown.test')
| -rw-r--r-- | mysql-test/main/derived_cond_pushdown.test | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/mysql-test/main/derived_cond_pushdown.test b/mysql-test/main/derived_cond_pushdown.test index 2d683f06023..05bc00dc28d 100644 --- a/mysql-test/main/derived_cond_pushdown.test +++ b/mysql-test/main/derived_cond_pushdown.test @@ -3299,3 +3299,26 @@ set join_cache_level=default; DROP TABLE t1,t2; --echo # End of 10.3 tests + +--echo # +--echo # MDEV-18679: materialized view with SELECT S containing materialized +--echo # derived when impossible WHERE has been detected for S +--echo # + +create table t1 (pk int, f varchar(1)); +insert into t1 values + (3,'y'), (1,'x'), (7,'z'); + +create view v1 as +select t1.f + from t1, (select distinct * from t1) t + where t.f = t1.f and 1 = 0 +group by t1.f; + +select * from v1; +explain select * from v1; + +drop view v1; +drop table t1; + +--echo # End of 10.4 tests |