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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/04/30 13:38:00 UTC

[jira] [Assigned] (SPARK-24121) The API for handling expression code generation in expression codegen

     [ https://issues.apache.org/jira/browse/SPARK-24121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-24121:
------------------------------------

    Assignee:     (was: Apache Spark)

> The API for handling expression code generation in expression codegen
> ---------------------------------------------------------------------
>
>                 Key: SPARK-24121
>                 URL: https://issues.apache.org/jira/browse/SPARK-24121
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Liang-Chi Hsieh
>            Priority: Major
>
> In order to achieve the replacement of expr value during expression codegen (please see the proposal at [https://github.com/apache/spark/pull/19813#issuecomment-354045400),] we need an API to handle the insertion of temporary symbols for statements generated by expressions. This API must allow us to know what statement expressions are during codegen and to use symbols instead of actual codes when generating java codes.



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