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https://issues.apache.org/jira/browse/SPARK-36913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17430780#comment-17430780
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Reynold Xin commented on SPARK-36913:
-------------------------------------
My concern is not about JDBC (I should've commented on the parent ticket). My
concern is that there are *a lot* of RDBMS features and we can't possibly
support all of them. It seems like we'd be much better off just having a
generic fallback API to execute a command that's passed through by Spark to the
underlying data source, and then the underlying data source can decide what to
do. Otherwise we will have to add create index, define foreign key, define
sequence objects, and 50 other DDL commands in Spark.
> Implement createIndex and IndexExists in JDBC (MySQL dialect)
> -------------------------------------------------------------
>
> Key: SPARK-36913
> URL: https://issues.apache.org/jira/browse/SPARK-36913
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Huaxin Gao
> Assignee: Huaxin Gao
> Priority: Major
> Fix For: 3.3.0
>
>
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