cloud-fan commented on a change in pull request #26806: [SPARK-30183][SQL]
Disallow to specify reserved properties in CREATE NAMESPACE syntax
URL: https://github.com/apache/spark/pull/26806#discussion_r363315150
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
##########
@@ -2525,11 +2526,17 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
var properties = ctx.tablePropertyList.asScala.headOption
.map(visitPropertyKeyValues)
.getOrElse(Map.empty)
- Option(ctx.comment).map(string).map {
- properties += SupportsNamespaces.PROP_COMMENT -> _
+
+ if (properties.keySet.exists(RESERVED_PROPERTIES.contains)) {
+ throw new ParseException(s"Disallow to specify reserved properties,
including" +
Review comment:
after some more thought, I think this is a breaking change. Existing queries
may already use the "comment" property. Can we add a legacy config and update
migration guide?
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