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org.apache.spark.sql.execution.columnar.impl

ColumnCompactor

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object ColumnCompactor extends Logging

Compact column batches, if required, and insert new compacted column batches, or if they are too small then push into row delta buffer.

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  5. def clone(): AnyRef

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  6. def compact(key: ColumnFormatKey, bucket: BucketRegion): Boolean

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    Perform compaction of the batch with given key.

    Perform compaction of the batch with given key.

    TODO: PERF: for delta compaction, merge and replace required columns only using ColumnDeltaEncoder.merge rather than creating an entire new batch for best performance. Also update the stats row for those columns.

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  11. def getValidTransaction(expectedRolloverDisabled: Boolean): Option[TXStateInterface]

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  19. def log: Logger

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