SupportsPushDownAggregates¶

SupportsPushDownAggregates is an extension of the ScanBuilder abstraction for scan builders with support for complete aggregate push-down optimization.

Contract¶

pushAggregation¶

boolean pushAggregation(
  Aggregation aggregation)

See:

• JDBCScanBuilder
• ParquetScanBuilder

Used when:

• V2ScanRelationPushDown logical optimization is executed (to rewriteAggregate)

supportCompletePushDown¶

boolean supportCompletePushDown(
  Aggregation aggregation)

Default: false

See:

• JDBCScanBuilder

Used when:

• V2ScanRelationPushDown logical optimization is executed (to rewriteAggregate)

Implementations¶

• JDBCScanBuilder
• OrcScanBuilder
• ParquetScanBuilder