cloud-fan commented on a change in pull request #27901: [SPARK-31146][SQL]
Leverage the helper method for aliasing in built-in SQL expressions
URL: https://github.com/apache/spark/pull/27901#discussion_r392829020
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/CallMethodViaReflection.scala
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@@ -55,7 +55,7 @@ import org.apache.spark.util.Utils
case class CallMethodViaReflection(children: Seq[Expression])
extends Expression with CodegenFallback {
- override def prettyName: String = "reflect"
+ override def prettyName: String =
getTagValue(FunctionRegistry.FUNC_ALIAS).getOrElse("reflect")
Review comment:
I don't think we guarantee the auto-generated alias name. It's very fragile
and can get changed super easily without noticing. AFAIK it has been changed
many times in the past.
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