Gather Streams

Optimizing SQL Database Performance

Optimizing Database Performance

Gather Streams

The Gather Streams logical operator is only used in parallel query plans. The Gather Streams operator consumes several input streams and produces a single output stream of records by combining the input streams. The record contents and format are not changed. If this operator is order-preserving, then all input streams must be ordered.

If the output is ordered, then the Argument column contains an ORDER BY:() predicate and the names of columns being ordered.

See Also

Distribute Streams

Parallel Query Processing


Repartition Streams