Purpose
You can call this function to merge multiple JSON documents. It is a synonym for JSON_MERGE_PRESERVE().
Syntax
JSON_MERGE(json_doc, json_doc[, json_doc] ...)
Notes
json_doc specifies the JSON documents that you want to merge.
Examples
obclient> SELECT JSON_MERGE('[1, 2, 3]', '[true, false]', '{"a":100}');
+-------------------------------------------------------+
JSON_MERGE('[1, 2, 3]', '[true, false]', '{"a":100}')
+-------------------------------------------------------+
[1, 2, 3, true, false, {"a": 100}]
+-------------------------------------------------------+
1 row in set
obclient> SELECT JSON_MERGE('{"1": 2}', '[true, false]', '{"a":100}');
+------------------------------------------------------+
JSON_MERGE('{"1": 2}', '[true, false]', '{"a":100}')
+------------------------------------------------------+
[{"1": 2}, true, false, {"a": 100}]
+------------------------------------------------------+
1 row in set
obclient> SELECT JSON_MERGE('{"1": 2}', '{"a":100}');
+--------------------------------------+
JSON_MERGE('{"1": 2}', '{"a":100}')
+--------------------------------------+
{"1": 2, "a": 100}
+--------------------------------------+
1 row in set
