wangyum commented on a change in pull request #32852:
URL: https://github.com/apache/spark/pull/32852#discussion_r648967742
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -193,13 +193,34 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef] with
SQLConfHelper with Logg
* This is only used for Common Table Expressions.
*/
override def visitNamedQuery(ctx: NamedQueryContext): SubqueryAlias =
withOrigin(ctx) {
- val subQuery: LogicalPlan = plan(ctx.query).optionalMap(ctx.columnAliases)(
+ val query = if (ctx.query != null) {
+ ctx.query
+ } else {
+ ctx.informationQuery
+ }
Review comment:
```scala
val query = Option(ctx.query).getOrElse(ctx. informationQuery)
```
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