[MDEV-11447] JSON_MERGE merges valid JSON objects incorrectly - Jira

MySQL 5.7
MySQL [test]> SELECT JSON_MERGE('{"a":"b"}','{"c":"d"}');
+-------------------------------------+
\| JSON_MERGE('{"a":"b"}','{"c":"d"}') \|
+-------------------------------------+
\| {"a": "b", "c": "d"} \|
+-------------------------------------+
1 row in set (0.00 sec)

MariaDB 10.2
MariaDB [test]> SELECT JSON_MERGE('{"a":"b"}','{"c":"d"}');
+-------------------------------------+
\| JSON_MERGE('{"a":"b"}','{"c":"d"}') \|
+-------------------------------------+
\| ["{\"a\":\"b\"}", "{\"c\":\"d\"}"] \|
+-------------------------------------+
1 row in set (0.00 sec)

relates to

MDEV-9143 JSON_xxx functions

Transition	Time In Source Status	Execution Times

Alexey Botchkov made transition - 2016-12-05 21:59

Open

In Progress

3d 22h 57m

Alexey Botchkov made transition - 2016-12-05 21:59

In Progress

Closed

13s

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