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https://issues.apache.org/jira/browse/SPARK-38852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17521815#comment-17521815
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Max Gekk edited comment on SPARK-38852 at 4/13/22 4:22 PM:
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SPARK-38788 was created specifically for the release note. Also it includes
features/bug fixes that were made out of this umbrella, for example
https://issues.apache.org/jira/browse/SPARK-36644
was (Author: maxgekk):
SPARK-38788 was created specifically for the release note. It includes
features/bug fixes that were made out of this umbrella, for example
https://issues.apache.org/jira/browse/SPARK-36644
> Better Data Source V2 operator pushdown framework
> -------------------------------------------------
>
> Key: SPARK-38852
> URL: https://issues.apache.org/jira/browse/SPARK-38852
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: jiaan.geng
> Priority: Major
>
> Currently, Spark supports push down Filters and Aggregates to data source.
> However, the Data Source V2 operator pushdown framework has the following
> shortcomings:
> # Only simple filter and aggregate are supported, which makes it impossible
> to apply in most scenarios
> # The incompatibility of SQL syntax makes it impossible to apply in most
> scenarios
> # Aggregate push down does not support multiple partitions of data sources
> # Spark's additional aggregate will cause some overhead
> # Limit push down is not supported
> # Top n push down is not supported
> # Offset push down is not supported
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