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Posted to issues@spark.apache.org by "Gengliang Wang (JIRA)" <ji...@apache.org> on 2019/04/26 20:42:00 UTC
[jira] [Updated] (SPARK-27580) Implement `doCanonicalize` in
BatchScanExec for comparing query plan results
[ https://issues.apache.org/jira/browse/SPARK-27580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gengliang Wang updated SPARK-27580:
-----------------------------------
Summary: Implement `doCanonicalize` in BatchScanExec for comparing query plan results (was: Implement `doCanonicalize` for BatchScanExec)
> Implement `doCanonicalize` in BatchScanExec for comparing query plan results
> ----------------------------------------------------------------------------
>
> Key: SPARK-27580
> URL: https://issues.apache.org/jira/browse/SPARK-27580
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Priority: Major
>
> The method `QueryPlan.sameResult` is used for comparing logical plans in order to:
> 1. cache data in CacheManager
> 2. uncache data in CacheManager
> 3. Reuse subqueries
> 4. etc...
> Currently the method `sameReuslt` always return false for `BatchScanExec`. We should fix it by implementing `doCanonicalize` for the node.
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