maropu commented on a change in pull request #27019: [SPARK-30027][SQL] Support
codegen for aggregate filters in HashAggregateExec
URL: https://github.com/apache/spark/pull/27019#discussion_r371231181
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala
##########
@@ -329,6 +328,39 @@ case class HashAggregateExec(
}
}
+ private def generateEvalCodeForAggFuncs(
+ ctx: CodegenContext,
+ input: Seq[ExprCode],
+ inputAttrs: Seq[Attribute],
+ boundUpdateExprs: Seq[Seq[Expression]],
+ aggNames: Seq[String],
+ aggCodeBlocks: Seq[Block],
+ subExprs: SubExprCodes): String = {
+ val aggCodes = if (conf.codegenSplitAggregateFunc &&
+ aggCodeBlocks.map(_.length).sum > conf.methodSplitThreshold) {
+ val maybeSplitCodes = splitAggregateExpressions(
+ ctx, aggNames, boundUpdateExprs, aggCodeBlocks, subExprs.states)
+
+ maybeSplitCodes.getOrElse(aggCodeBlocks.map(_.code))
+ } else {
+ aggCodeBlocks.map(_.code)
+ }
+
+ aggCodes.zip(aggregateExpressions.map(ae => (ae.mode, ae.filter))).map {
+ case (aggCode, (Partial | Complete, Some(condition))) =>
+ // Note: wrap in "do { } while(false);", so the generated checks can
jump out
+ // with "continue;"
+ s"""
+ |do {
+ | ${generatePredicateCode(ctx, condition, inputAttrs, input)}
+ | $aggCode
+ |} while(false);
Review comment:
Thanks for the reply, @HeartSaVioR. Since I forgot to add the generated
code, I've added it in the PR description.
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