Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/11792#discussion_r56590134
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/basicOperators.scala ---
@@ -110,23 +114,34 @@ case class Filter(condition: Expression, child:
SparkPlan)
override def doConsume(ctx: CodegenContext, input: Seq[ExprCode], row:
String): String = {
val numOutput = metricTerm(ctx, "numOutputRows")
- // filter out the nulls
- val filterOutNull = notNullAttributes.map { a =>
- val idx = child.output.indexOf(a)
- s"if (${input(idx).isNull}) continue;"
- }.mkString("\n")
+ val conjuncts = splitConjunctivePredicates(condition)
+ val evaluatedVars = new Array[ExprCode](input.length)
- ctx.currentVars = input
- val predicates = otherPreds.map { e =>
- val bound = ExpressionCanonicalizer.execute(
- BindReferences.bindReference(e, output))
- val ev = bound.gen(ctx)
+ // Generate the code to evaluate each filter.
+ val generated = conjuncts.map { c =>
+ // Collect the referenced attributes and make sure they are
evaluated.
+ val bound = BindReferences.bindReference(c, output)
--- End diff --
output will have different nullability than child.output, we should use
child.output here.
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