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Posted to issues@hive.apache.org by "Yi Zhang (Jira)" <ji...@apache.org> on 2023/04/05 00:18:00 UTC

[jira] [Updated] (HIVE-27218) Hive-3 switch hive.materializedview.rewriting default to false

     [ https://issues.apache.org/jira/browse/HIVE-27218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yi Zhang updated HIVE-27218:
----------------------------
    Summary: Hive-3 switch hive.materializedview.rewriting default to false  (was: Hive-3 set hive.materializedview.rewriting default to false)

> Hive-3 switch hive.materializedview.rewriting default to false
> --------------------------------------------------------------
>
>                 Key: HIVE-27218
>                 URL: https://issues.apache.org/jira/browse/HIVE-27218
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>    Affects Versions: 3.1.0, 3.1.2, 3.1.3
>            Reporter: Yi Zhang
>            Priority: Major
>
> https://issues.apache.org/jira/browse/HIVE-19973 switched hive.materializedview.rewriting default from false to true, however user observed high latency at query compilation as they have large amount of databases (5k), each call to a remote metastore DB adds up the latency to minutes, each query compilation time is high.
> as hive-4 have improvements in HIVE-21631 and HIVE-21344  backport is unlikely, suggest to turn this false by default in hive-3.
>  



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