[
https://issues.apache.org/jira/browse/SPARK-32854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17194003#comment-17194003
]
Apache Spark commented on SPARK-32854:
--------------------------------------
User 'c21' has created a pull request for this issue:
https://github.com/apache/spark/pull/29724
> Avoid per-row join type check in stream-stream join
> ---------------------------------------------------
>
> Key: SPARK-32854
> URL: https://issues.apache.org/jira/browse/SPARK-32854
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.1.0
> Reporter: Cheng Su
> Priority: Trivial
>
> In stream-stream join (`StreamingSymmetricHashJoinExec`), we can optimize to
> avoid per row check for join type
> ([https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingSymmetricHashJoinExec.scala#L486-L492]
> ), to create the method before the loop of reading row. Similar optimization
> (i.e. create auxiliary method/variable per different join type beforehand)
> has been done in batch join world (`SortMergeJoinExec`,
> `ShuffledHashJoinExec`). This is a minor change.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
