spark-reviews mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From marmbrus <>
Subject [GitHub] spark pull request: [WIP][Spark-SQL] Optimize the Constant Folding...
Date Mon, 28 Apr 2014 06:38:14 GMT
Github user marmbrus commented on a diff in the pull request:
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
    @@ -91,10 +91,53 @@ object ColumnPruning extends Rule[LogicalPlan] {
     object ConstantFolding extends Rule[LogicalPlan] {
       def apply(plan: LogicalPlan): LogicalPlan = plan transform {
    -    case q: LogicalPlan => q transformExpressionsDown {
    +    case q: LogicalPlan => q transformExpressionsUp {
    --- End diff --
    Do we want `Up`? I believe this means we are going to call evaluate on each foldable node
working up instead of just calling it once at the top.

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at or file a JIRA ticket
with INFRA.

View raw message