You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@calcite.apache.org by "yunfeng (Jira)" <ji...@apache.org> on 2019/10/24 07:30:00 UTC

[jira] [Created] (CALCITE-3442) Set `stored_fields = _none` prohibit `FetchPhase` get be involved and improve the Performance for Elasticsearch

yunfeng created CALCITE-3442:
--------------------------------

             Summary: Set `stored_fields = _none` prohibit `FetchPhase` get be involved and improve the Performance for Elasticsearch
                 Key: CALCITE-3442
                 URL: https://issues.apache.org/jira/browse/CALCITE-3442
             Project: Calcite
          Issue Type: Improvement
          Components: elasticsearch-adapter
            Reporter: yunfeng
             Fix For: next


 For elasticsearch-adapte,   when  ElasticsearchAggregat involved , set _source = false and size = 0 , Elasticsearch `FetchPhase` would still be executed against the current  search process and visit the Lucene stored_fields, which would lead to performance declined dramatically.  
We can set `stored_fields = _none` prohibit this such behavior completely



--
This message was sent by Atlassian Jira
(v8.3.4#803005)