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Jark Wu closed FLINK-28751. --------------------------- Fix Version/s: 1.16.0 (was: 1.17.0) Resolution: Fixed Fixed in master: 2220f24925ab5146d5771c3782ed8c0837bb0bc4 > Poor performance of the built in json_value function > ---------------------------------------------------- > > Key: FLINK-28751 > URL: https://issues.apache.org/jira/browse/FLINK-28751 > Project: Flink > Issue Type: Improvement > Components: Table SQL / Runtime > Reporter: Aitozi > Assignee: Aitozi > Priority: Major > Labels: pull-request-available > Fix For: 1.16.0 > > Attachments: image-2022-07-30-15-47-34-788.png > > > When I use the JSON_VALUE function, I found the performance is very poor. > It's mainly affected by the heavy lock operation in jsonpath inner LRUCache > which is also observed by other systems, eg: > [https://github.com/apache/pinot/pull/7409|https://github.com/apache/pinot/pull/7409] > !image-2022-07-30-15-47-34-788.png|width=500,height=250! > So I proposal to use a different cache to replace the current one for better > performance. -- This message was sent by Atlassian Jira (v8.20.10#820010)