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authorSergei Golubchik <serg@mariadb.org>2017-03-30 12:48:42 +0200
committerSergei Golubchik <serg@mariadb.org>2017-03-30 12:48:42 +0200
commitda4d71d10d23c1ac2d10b72baee14991ccb7a146 (patch)
tree7cdf3a8c8e72ca7c1c8105427c04123f025bd870 /mysql-test/t/derived.test
parent9ec85009985d644ce7ae797bc3572d0ad0f69bb0 (diff)
parenta00517ac9707ffd51c092f5af5d198c5ee789bb4 (diff)
downloadmariadb-git-da4d71d10d23c1ac2d10b72baee14991ccb7a146.tar.gz
Merge branch '10.1' into 10.2
Diffstat (limited to 'mysql-test/t/derived.test')
-rw-r--r--mysql-test/t/derived.test23
1 files changed, 23 insertions, 0 deletions
diff --git a/mysql-test/t/derived.test b/mysql-test/t/derived.test
index 121e274ceeb..d30a6d7fd9e 100644
--- a/mysql-test/t/derived.test
+++ b/mysql-test/t/derived.test
@@ -875,6 +875,29 @@ SELECT Customer, Success, SUM(OrderSize)
DROP TABLE example1463;
set sql_mode= @save_sql_mode;
+--echo #
+--echo # MDEV-9028: SELECT DISTINCT constant column of derived table
+--echo # used as the second operand of LEFT JOIN
+--echo #
+
+create table t1 (id int, data varchar(255));
+insert into t1 values (1,'yes'),(2,'yes');
+
+select distinct t1.id, tt.id, tt.data
+ from t1
+ left join
+ (select t1.id, 'yes' as data from t1) as tt
+ on t1.id = tt.id;
+
+select distinct t1.id, tt.id, tt.data
+ from t1
+ left join
+ (select t1.id, 'yes' as data from t1 where id > 1) as tt
+ on t1.id = tt.id;
+
+drop table t1;
+
+
--echo # end of 5.5
--echo #