php – MySQL错误代码：1305.在MySQL客户端版本中不存在FUNCTION

Goal :- json_extract does not exist error.

我确实有这样的消息体.

< message type = "chat"
  to = "socialapp_233@22.52.258.256"
  from = "socialapp_6@22.52.258.256/9fs4kgn090" > < body > {
    "opponent_xmpp_id": "socialapp_233@22.52.258.256","latest_message_id": "6233"
  } < /body><active>http:/ / jabber.org / protocol / chatstates < /active></message >

我试图提取opponent_xmpp_id和latest_message_id.

因为我写了一个像下面的查询.

SELECT  LEFT(ExtractValue( stanza,"//@from" ),LOCATE("@",ExtractValue( stanza,"//@from" )) - 1),LEFT(ExtractValue( stanza,"//@to" ),"//@to" )) - 1),ExtractValue(stanza,"//body"),"//@chattype"),TRIM(BOTH '"' FROM json_extract(ExtractValue(stanza,'$.opponent_xmpp_id')) AS opponent_xmpp_id,json_extract(ExtractValue(stanza,'$.latest_message_id') AS latest_message_id        
FROM
ofOffline

导致错误

1305 – FUNCTION databaseName.json_extract does not exist

根据我搜索其支持>仅限MYsql 5.7版本.

那么在MySQL客户端版本中是否有任何函数可以像json_extract一样进行simmilar工作：5.5.52？