maropu commented on a change in pull request #23880: [SPARK-26976][SQL] Forbid
reserved keywords as table identifiers when ANSI mode is on
URL: https://github.com/apache/spark/pull/23880#discussion_r263943577
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
##########
@@ -1404,6 +1404,15 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
}
}
+ override def visitIdentifier(ctx: IdentifierContext): String =
withOrigin(ctx) {
+ val keyword = ctx.getText
+ if (ctx.ansiReserved() != null) {
+ throw new ParseException(
+ s"'$keyword' is reserved and you cannot use this keyword as an
identifier.", ctx)
Review comment:
@cloud-fan How about the latest fix?
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