cloud-fan commented on code in PR #52638:
URL: https://github.com/apache/spark/pull/52638#discussion_r2446807377
##########
sql/api/src/main/scala/org/apache/spark/sql/catalyst/parser/DataTypeAstBuilder.scala:
##########
@@ -45,18 +46,188 @@ class DataTypeAstBuilder extends
SqlBaseParserBaseVisitor[AnyRef] {
withOrigin(ctx)(StructType(visitColTypeList(ctx.colTypeList)))
}
- override def visitStringLiteralValue(ctx: StringLiteralValueContext): Token =
- Option(ctx).map(_.STRING_LITERAL.getSymbol).orNull
+ /**
+ * Visits a stringLit context that may contain multiple singleStringLit
children (which can be
+ * either singleStringLitWithoutMarker or parameterMarker). When multiple
children are present,
+ * they are coalesced into a single token.
+ */
+ override def visitStringLit(ctx: StringLitContext): Token = {
+ if (ctx == null) {
+ return null
+ }
+
+ import scala.jdk.CollectionConverters._
+
+ // Collect tokens from all singleStringLit children.
+ // Each child is either a singleStringLitWithoutMarker or a
parameterMarker.
+ val tokens = ctx
+ .singleStringLit()
+ .asScala
+ .map { child =>
+ visit(child).asInstanceOf[Token]
+ }
+ .toSeq
+
+ if (tokens.isEmpty) {
+ null
+ } else if (tokens.size == 1) {
+ // Fast path: single token, return unchanged
+ tokens.head
+ } else {
+ // Multiple tokens: create coalesced token
+ createCoalescedStringToken(tokens)
Review Comment:
hmm shall we put everything in `AstBuilder`? Looks weird to combine tokens
here.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
