davidm-db commented on code in PR #47672:
URL: https://github.com/apache/spark/pull/47672#discussion_r1739403703
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
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@@ -229,6 +229,31 @@ class AstBuilder extends DataTypeAstBuilder
)
}
+ override def visitSearchedCaseStatement(ctx: SearchedCaseStatementContext)
+ : SearchedCaseStatement = {
+ SearchedCaseStatement(
+ conditions = ctx.conditions.asScala.toList.map(boolExpr =>
withOrigin(boolExpr) {
+ SingleStatement(
+ Project(
+ Seq(Alias(expression(boolExpr), "condition")()),
+ OneRowRelation()))
+ }),
+ conditionalBodies = ctx.conditionalBodies.asScala.toList.map(body =>
visitCompoundBody(body)),
+ elseBody = Option(ctx.elseBody).map(body => visitCompoundBody(body)))
+ }
+
+ override def visitSimpleCaseStatement(ctx: SimpleCaseStatementContext):
SearchedCaseStatement = {
Review Comment:
I'm not sure about this at the moment, let's think about it on Monday and
try to figure out a better approach...
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