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-rw-r--r--mysql-test/t/union.test4
1 files changed, 4 insertions, 0 deletions
diff --git a/mysql-test/t/union.test b/mysql-test/t/union.test
index 58e4c22e168..6045d8e3c30 100644
--- a/mysql-test/t/union.test
+++ b/mysql-test/t/union.test
@@ -499,6 +499,10 @@ select count(*) from t1 where b=13 union select count(*) from t1 where a=7;
show status like 'Slow_queries';
select count(*) from t1 where a=7 union select count(*) from t1 where b=13;
show status like 'Slow_queries';
+# additional test for examined rows
+flush status;
+select a from t1 where b not in (1,2,3) union select a from t1 where b not in (4,5,6);
+show status like 'Slow_queries';
drop table t1;
#