Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/6982#discussion_r33536380
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ExtractValue.scala
---
@@ -209,4 +257,16 @@ case class GetMapValue(child: Expression, ordinal:
Expression)
val baseValue = value.asInstanceOf[Map[Any, _]]
baseValue.get(ordinal).orNull
}
+
+ override def genCode(ctx: CodeGenContext, ev: GeneratedExpressionCode):
String = {
+ nullSafeCodeGen(ctx, ev, (result, eval1, eval2) => {
+ s"""
+ if ($eval1.contains($eval2)) {
+ $result = (${ctx.boxedType(dataType)})$eval1.apply($eval2);
+ } else {
+ ${ev.isNull} = true;
--- End diff --
We can leave it as it is now, may change to use java.util.HashMap in
future.
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