Ryan Blue created SPARK-24478:
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Summary: DataSourceV2 should push filters and projection at
physical plan conversion
Key: SPARK-24478
URL: https://issues.apache.org/jira/browse/SPARK-24478
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 2.3.0
Reporter: Ryan Blue
DataSourceV2 currently pushes filters and projected columns in the optimized
plan, but this requires creating and configuring a reader multiple times and
prevents the v2 relation's output from being a fixed argument of the relation
case class. It is also much cleaner (see PR
[#21262|https://github.com/apache/spark/pull/21262]).
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