W3cubDocs

/MariaDB

JSON_MERGE_PATCH

MariaDB starting with 10.2.25

JSON_MERGE_PATCH was introduced in MariaDB 10.2.25, MariaDB 10.3.16 and MariaDB 10.4.5.

Syntax

JSON_MERGE_PATCH(json_doc, json_doc[, json_doc] ...)

Description

Merges the given JSON documents, returning the merged result, or NULL if any argument is NULL.

JSON_MERGE_PATCH is an RFC 7396-compliant replacement for JSON_MERGE, which has been deprecated.

Example

SET @json1 = '[1, 2]';
SET @json2 = '[2, 3]';
SELECT JSON_MERGE_PATCH(@json1,@json2),JSON_MERGE_PRESERVE(@json1,@json2);
+---------------------------------+------------------------------------+
| JSON_MERGE_PATCH(@json1,@json2) | JSON_MERGE_PRESERVE(@json1,@json2) |
+---------------------------------+------------------------------------+
| [2, 3]                          | [1, 2, 2, 3]                       |
+---------------------------------+------------------------------------+
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.

© 2019 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/json_merge_patch/