cloud-fan commented on code in PR #49445:
URL: https://github.com/apache/spark/pull/49445#discussion_r1946878523
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sql/core/src/main/scala/org/apache/spark/sql/execution/command/v2/SetVariableExec.scala:
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@@ -47,21 +50,45 @@ case class SetVariableExec(variables:
Seq[VariableReference], query: SparkPlan)
val row = values(0)
variables.zipWithIndex.foreach { case (v, index) =>
val value = row.get(index, v.dataType)
- createVariable(variableManager, v, value)
+ setVariable(v, value)
}
}
Seq.empty
}
- private def createVariable(
- variableManager: TempVariableManager,
+ private def setVariable(
variable: VariableReference,
value: Any): Unit = {
- variableManager.create(
- variable.identifier.name,
+ val namePartsCaseAdjusted = if
(session.sessionState.conf.caseSensitiveAnalysis) {
+ variable.originalNameParts
+ } else {
+ variable.originalNameParts.map(_.toLowerCase(Locale.ROOT))
+ }
+
+ val tempVariableManager =
session.sessionState.catalogManager.tempVariableManager
+ val scriptingVariableManager = SqlScriptingLocalVariableManager.get()
+
+ val variableManager = scriptingVariableManager
+ .filter(_ => variable.catalog == FakeLocalCatalog)
+ // If a local variable with nameParts exists, set it using
scriptingVariableManager.
+ .filter(_.get(namePartsCaseAdjusted).isDefined)
+ // If a local variable with nameParts doesn't exist, check if a session
variable exists
Review Comment:
shall we fail if this happens? The `ResolveSetVariable` rule has already
determined it's local variable and it's a bug if it disappears.
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