gengliangwang commented on code in PR #50561:
URL: https://github.com/apache/spark/pull/50561#discussion_r2040432672
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/connector/catalog/CatalogV2Util.scala:
##########
@@ -296,6 +297,49 @@ private[sql] object CatalogV2Util {
}
}
+ /**
+ * Apply Table Constraints changes to an existing table and return the
result.
+ */
+ def applyConstraintChanges(
+ table: Table,
+ changes: Seq[TableChange]): Array[Constraint] = {
+ val constraints = table.constraints()
+
+ def findExistingConstraint(name: String): Option[Constraint] = {
+ constraints.find(_.name.toLowerCase(Locale.ROOT) ==
name.toLowerCase(Locale.ROOT))
+ }
+
+ changes.foldLeft(constraints) { (constraints, change) =>
+ change match {
+ case add: AddConstraint =>
+ val newConstraint = add.getConstraint
+ val existingConstraint = findExistingConstraint(newConstraint.name)
+ if (existingConstraint.isDefined) {
+ throw new AnalysisException(
Review Comment:
All the spark errors are with error classes. This is a utility method for
external developers to use directly.
--
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: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
