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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/11/02 18:23:01 UTC
[jira] [Assigned] (SPARK-37199) Add a deterministic field to
QueryPlan
[ https://issues.apache.org/jira/browse/SPARK-37199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-37199:
------------------------------------
Assignee: (was: Apache Spark)
> Add a deterministic field to QueryPlan
> --------------------------------------
>
> Key: SPARK-37199
> URL: https://issues.apache.org/jira/browse/SPARK-37199
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Abhishek Somani
> Priority: Major
>
> We have a _deterministic_ field in [Expressions|https://github.com/apache/spark/blob/b78167a2ee6b11b1f2839274e23676411f919115/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala#L115] to check if an expression is deterministic, but we do not have a similar field in [QueryPlan.|https://github.com/apache/spark/blob/b78167a2ee6b11b1f2839274e23676411f919115/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala#L44]
> We have a need for such a check in the QueryPlan sometimes, like in [InlineCTE|https://github.com/apache/spark/blob/b78167a2ee6b11b1f2839274e23676411f919115/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/InlineCTE.scala#L56]
> This proposal is to add a _deterministic_ field to QueryPlan.
> More details [in this document|https://docs.google.com/document/d/1eIiaSJf-Co2HhjsaQxFNGwUxobnHID4ZGmJMcVytREc/edit#].
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