You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues-all@impala.apache.org by "Alex Rodoni (JIRA)" <ji...@apache.org> on 2018/08/30 18:01:00 UTC
[jira] [Updated] (IMPALA-1286) Pull out common conjuncts from
disjunctions
[ https://issues.apache.org/jira/browse/IMPALA-1286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alex Rodoni updated IMPALA-1286:
--------------------------------
Docs Text: (was: Perf improvement.)
> Pull out common conjuncts from disjunctions
> -------------------------------------------
>
> Key: IMPALA-1286
> URL: https://issues.apache.org/jira/browse/IMPALA-1286
> Project: IMPALA
> Issue Type: New Feature
> Components: Frontend
> Affects Versions: Impala 2.0
> Reporter: Nong Li
> Assignee: Alexander Behm
> Priority: Minor
> Labels: documentation, performance, planner, tpc-ds
> Fix For: Impala 2.8.0
>
>
> I see this in tpch and tpcds where predicates look like this:
> where
> ( col = 1 AND ... AND ...) or
> ( col = 1 AND ... AND ...) or
> ( col = 1 AND ... AND ...)
> It's an OR of ANDs and there are predicates that are in each OR (col = 1). This could be pulled out.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscribe@impala.apache.org
For additional commands, e-mail: issues-all-help@impala.apache.org