JSON_REPLACE() returned a json_update does not exist error.

[root@localhost mariadb-columnstore-server]# git show
commit 594ef1807a5d6cba45cf7c2bed03cccdc32f177a
Merge: a5f191d ce815f9
Author: David.Hall <david.hall@mariadb.com>
Date: Thu Jun 8 10:12:50 2017 -0500
[root@localhost mariadb-columnstore-engine]# git show
commit ebaf24473c0838989bf504a7c104c511b876fcb8
Author: david hill <david.hill@mariadb.com>
Date: Fri Jun 16 16:53:48 2017 -0500

As of testing time, ColumnStore does not supported distributed distributed JSON functions. JSONs are being executed by MariaDB front end (vtablemode=0).

MariaDB [mytest]> SELECT cVarchar, JSON_REPLACE(cVarchar, '$.B[1]', 4), cText, JSON_REPLACE(cText, '$.B[1]', 4) from jsontest;
ERROR 1305 (42000): FUNCTION mytest.json_update does not exist

create table script:

DROP TABLE IF EXISTS jsontest;
CREATE TABLE jsontest (
cInt INT,
cVarchar VARCHAR(300),
cText TEXT)
ENGINE=columnstore;

test script:

1. ---------------------------------------------------------------------- #
2. The string is already a JSON string so we can insert it into the table
3. ---------------------------------------------------------------------- #
   TRUNCATE TABLE jsontest;
   SET @json = ' { "A": 1, "B": [2, 3]}

   ';
   SELECT @json;
   INSERT INTO jsontest VALUES (1, @json, @json);
   #
   SELECT JSON_REPLACE(@json, '$.B[1]', 4);
   #
   SELECT * FROM jsontest;
   SELECT cVarchar, JSON_REPLACE(cVarchar, '$.B[1]', 4), cText, JSON_REPLACE(cText, '$.B[1]', 4) from jsontest;
   #
   TRUNCATE TABLE jsontest;
   #