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-rw-r--r--mysql-test/main/subselect_sj.test6
1 files changed, 6 insertions, 0 deletions
diff --git a/mysql-test/main/subselect_sj.test b/mysql-test/main/subselect_sj.test
index 3c046c6321c..b4aff7561cf 100644
--- a/mysql-test/main/subselect_sj.test
+++ b/mysql-test/main/subselect_sj.test
@@ -780,7 +780,13 @@ eval $query;
let $query=
SELECT pk FROM t1 WHERE (b, i) IN (SELECT b, i FROM t2 WHERE pk > 0);
+#set optimizer_trace=1;
+#select @@optimizer_switch;
+#select @@join_cache_level;
+#select @@optimizer_use_condition_selectivity;
eval EXPLAIN EXTENDED $query;
+#select * from information_schema.optimizer_trace;
+
eval $query;
let $query=