Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/12146#discussion_r58963954
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala ---
@@ -367,6 +367,22 @@ class SparkSqlAstBuilder extends AstBuilder {
}
/**
+ * Create a [[DropTable]] command.
+ */
+ override def visitDropTable(ctx: DropTableContext): LogicalPlan =
withOrigin(ctx) {
+ if (ctx.PURGE != null) {
+ logWarning("PURGE option is ignored.")
--- End diff --
@gatorsmile Looks like it is not good to slightly ignore it. We should
either support it or throw an exception. Let's also make sure the default
behavior of `purge` is correct.
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