Factor logic to collect files to REORG out of OPTIMIZE #2616
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spark/src/main/scala/org/apache/spark/sql/delta/commands/OptimizeTableCommand.scala
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spark/src/main/scala/org/apache/spark/sql/delta/commands/DeltaReorgTableCommand.scala
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Which Delta project/connector is this regarding?
Description
This is a plain refactor of REORG TABLE / OPTIMIZE to allow for better extendability and adding new types of REORG TABLE operations in the future.
The REORG operation currently supports:
More operations can be used in the future to allow dropping table features, in particular for column mapping: rewrite files to have the physical column names match the logical column name.
How was this patch tested?
This a plain refactor without functional changes.