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Apache Spark commented on SPARK-36763: -------------------------------------- User 'RabbidHY' has created a pull request for this issue: https://github.com/apache/spark/pull/34334 > Pull out ordering expressions > ----------------------------- > > Key: SPARK-36763 > URL: https://issues.apache.org/jira/browse/SPARK-36763 > Project: Spark > Issue Type: Improvement > Components: SQL > Affects Versions: 3.3.0 > Reporter: Yuming Wang > Priority: Major > > Similar to > [PullOutGroupingExpressions|https://github.com/apache/spark/blob/7fd3f8f9ec55b364525407213ba1c631705686c5/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/PullOutGroupingExpressions.scala#L48]. > We can pull out ordering expressions to improve order performance. For > example: > {code:scala} > sql("create table t1(a int, b int) using parquet") > sql("insert into t1 values (1, 2)") > sql("insert into t1 values (3, 4)") > sql("select * from t1 order by a - b").explain > {code} > {noformat} > == Physical Plan == > AdaptiveSparkPlan isFinalPlan=false > +- Sort [(a#12 - b#13) ASC NULLS FIRST], true, 0 > +- Exchange rangepartitioning((a#12 - b#13) ASC NULLS FIRST, 5), > ENSURE_REQUIREMENTS, [id=#39] > +- FileScan parquet default.t1[a#12,b#13] > {noformat} > The {{Subtract}} will be evaluated 4 times. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org