viirya commented on a change in pull request #20965: [SPARK-21870][SQL] Split aggregation code into small functions URL: https://github.com/apache/spark/pull/20965#discussion_r319684092
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala ########## @@ -824,59 +936,158 @@ case class HashAggregateExec( // generating input columns, we use `currentVars`. ctx.currentVars = new Array[ExprCode](aggregateBufferAttributes.length) ++ input + val aggNames = aggregateExpressions.map(_.aggregateFunction.prettyName) + // Computes start offsets for each aggregation function code + // in the underlying buffer row. + val bufferStartOffsets = { + val offsets = mutable.ArrayBuffer[Int]() + var curOffset = 0 + updateExprs.foreach { exprsForOneFunc => + offsets += curOffset + curOffset += exprsForOneFunc.length + } + offsets.toArray + } + val updateRowInRegularHashMap: String = { ctx.INPUT_ROW = unsafeRowBuffer - val boundUpdateExpr = bindReferences(updateExpr, inputAttr) - val subExprs = ctx.subexpressionEliminationForWholeStageCodegen(boundUpdateExpr) + val boundUpdateExprs = updateExprs.map { updateExprsForOneFunc => + bindReferences(updateExprsForOneFunc, inputAttr) + } + val subExprs = ctx.subexpressionEliminationForWholeStageCodegen(boundUpdateExprs.flatten) val effectiveCodes = subExprs.codes.mkString("\n") - val unsafeRowBufferEvals = ctx.withSubExprEliminationExprs(subExprs.states) { - boundUpdateExpr.map(_.genCode(ctx)) + val unsafeRowBufferEvals = boundUpdateExprs.map { boundUpdateExprsForOneFunc => + ctx.withSubExprEliminationExprs(subExprs.states) { Review comment: Will sub expr be put into function argument? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org