Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/13909#discussion_r93839843
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeCreator.scala
---
@@ -56,33 +57,107 @@ case class CreateArray(children: Seq[Expression])
extends Expression {
}
override def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
- val arrayClass = classOf[GenericArrayData].getName
- val values = ctx.freshName("values")
- ctx.addMutableState("Object[]", values, s"this.$values = null;")
-
- ev.copy(code = s"""
- this.$values = new Object[${children.size}];""" +
- ctx.splitExpressions(
- ctx.INPUT_ROW,
- children.zipWithIndex.map { case (e, i) =>
- val eval = e.genCode(ctx)
- eval.code + s"""
- if (${eval.isNull}) {
- $values[$i] = null;
- } else {
- $values[$i] = ${eval.value};
- }
- """
- }) +
- s"""
- final ArrayData ${ev.value} = new $arrayClass($values);
- this.$values = null;
- """, isNull = "false")
+ val et = dataType.elementType
+ val evals = children.map(e => e.genCode(ctx))
+ val (preprocess, assigns, postprocess, arrayData, array) =
--- End diff --
Ah, i noticed that `_` can be used for return value. It seems to be better.
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