Xiangrui Meng created SPARK-25349:
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Summary: Support sample pushdown in Data Source V2
Key: SPARK-25349
URL: https://issues.apache.org/jira/browse/SPARK-25349
Project: Spark
Issue Type: Story
Components: SQL
Affects Versions: 3.0.0
Reporter: Xiangrui Meng
Support sample pushdown would help file-based data source implementation save
I/O cost significantly if it can decide whether to read a file or not.
cc: [~cloud_fan]
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