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https://issues.apache.org/jira/browse/SPARK-22390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16946140#comment-16946140
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Huaxin Gao edited comment on SPARK-22390 at 10/7/19 6:54 PM:
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I am slowly catching up the changes in Data Source V2 and try to fit aggregate
push down there. It seems JDBC support is still not in Data Source V2 yet. If I
put aggregate push down in V2, I don't have a data source to test the
implementation. I guess all I can do is to follow the pushFilters in
DataSourceV2Suite and implement a simple aggregate in AdvancedDataSourceV2,
something like the GreaterThan filter. Any suggestions? [~smilegator]
[~holden]
was (Author: huaxingao):
I am slowly catching up the changes in Data Source V2 and try to fit aggregate
push down there. It seems JDBC support is still not in Data Source V2 yet. If I
put aggregate push down in V2, I don't have a data source to test the
implementation. I guess all I can do is to follow the pushFilters in
DataSourceV2Suite and implement a simple aggregate in AdvancedDataSourceV2,
something like the GreaterThan filter. Any suggestions? [~smilegator][~holden]
> Aggregate push down
> -------------------
>
> Key: SPARK-22390
> URL: https://issues.apache.org/jira/browse/SPARK-22390
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Wenchen Fan
> Priority: Major
>
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