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-rw-r--r--mysql-test/main/func_json.test8
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/main/func_json.test b/mysql-test/main/func_json.test
index 668675551f6..e84edebd96f 100644
--- a/mysql-test/main/func_json.test
+++ b/mysql-test/main/func_json.test
@@ -880,6 +880,14 @@ DROP TABLE t1;
DROP TABLE t2;
--echo #
+--echo # MDEV-27018 IF and COALESCE lose "json" property
+--echo #
+
+SELECT json_object('a', if(1, json_object('b', 'c'), json_object('e', 'f')));
+SELECT json_object('a', coalesce(json_object('b', 'c')));
+
+
+--echo #
--echo # End of 10.5 tests
--echo #