jzhuge commented on a change in pull request #24741: [SPARK-27322][SQL]
DataSourceV2: Select from multiple catalogs
URL: https://github.com/apache/spark/pull/24741#discussion_r290550116
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceResolution.scala
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@@ -98,8 +100,22 @@ case class DataSourceResolution(
case DropViewStatement(AsTableIdentifier(tableName), ifExists) =>
DropTableCommand(tableName, ifExists, isView = true, purge = false)
+
+ case u @ UnresolvedRelation(CatalogObjectIdentifier(Some(catalog), ident))
=>
Review comment:
All DSv2 resolutions are kept in DataSourceResolution that requires
LookupCatalog mixin.
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