imback82 commented on a change in pull request #31494:
URL: https://github.com/apache/spark/pull/31494#discussion_r571342363
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2Strategy.scala
##########
@@ -437,9 +437,8 @@ class DataSourceV2Strategy(session: SparkSession) extends
Strategy with Predicat
}.toSeq
AlterTableExec(table.catalog, table.identifier, changes) :: Nil
- // TODO: v2 `UNSET TBLPROPERTIES` should respect the ifExists flag.
- case AlterTableUnsetProperties(table: ResolvedTable, keys, _) =>
- val changes = keys.map(key => TableChange.removeProperty(key))
+ case AlterTableUnsetProperties(table: ResolvedTable, keys, ifExists) =>
+ val changes = keys.map(key => TableChange.removeProperty(key, ifExists))
Review comment:
Another approach is do the existence check here instead of changing the
public APIs.
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