cloud-fan commented on a change in pull request #25570: [SPARK-23519][SQL]
create view should work from query with duplicate output columns
URL: https://github.com/apache/spark/pull/25570#discussion_r317935181
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala
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@@ -360,13 +362,15 @@ object ViewHelper {
def generateViewProperties(
properties: Map[String, String],
session: SparkSession,
- analyzedPlan: LogicalPlan): Map[String, String] = {
+ analyzedPlan: LogicalPlan,
+ fieldNames: Array[String]): Map[String, String] = {
+ // for createViewCommand queryOutput may be different from fieldNames
val queryOutput = analyzedPlan.schema.fieldNames
// Generate the query column names, throw an AnalysisException if there
exists duplicate column
// names.
SchemaUtils.checkColumnNameDuplication(
Review comment:
We only need to access `userSpecifiedColumns` before calling `SchemaUtils`,
don't we?
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