Create 'main' test directory and move 't' and 'r' there

1 files changed, 15 insertions, 0 deletions

diff --git a/mysql-test/main/order_by_zerolength-4285.test b/mysql-test/main/order_by_zerolength-4285.test
new file mode 100644
index 00000000000..079ce8da71e
--- /dev/null
+++ b/mysql-test/main/order_by_zerolength-4285.test
@@ -0,0 +1,15 @@
+#
+# MDEV-4285 Server crashes in ptr_compare on NOW and CAST in ORDER BY
+#
+create table t1 (pk int primary key);
+insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
+
+# In strict mode the query produces result in a different order
+# (not ordered implicitly by PK and indeterministic), so we force sorting.
+# However, sorting also affects warnings, so we'll check them separately.
+--disable_warnings
+--sorted_result
+select * from t1 order by now(), cast(pk as char(0));
+--enable_warnings
+show warnings;
+drop table t1;