jzhuge commented on a change in pull request #24686: [SPARK-27813][SQL]
DataSourceV2: Add DropTable logical operation
URL: https://github.com/apache/spark/pull/24686#discussion_r288828901
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File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -139,8 +139,8 @@ statement
DROP (IF EXISTS)? partitionSpec (',' partitionSpec)*
#dropTablePartitions
| ALTER TABLE tableIdentifier partitionSpec? SET locationSpec
#setTableLocation
| ALTER TABLE tableIdentifier RECOVER PARTITIONS
#recoverPartitions
- | DROP TABLE (IF EXISTS)? tableIdentifier PURGE?
#dropTable
- | DROP VIEW (IF EXISTS)? tableIdentifier
#dropTable
+ | DROP TABLE (IF EXISTS)? multipartIdentifier PURGE?
#dropTable
+ | DROP VIEW (IF EXISTS)? multipartIdentifier
#dropView
Review comment:
Echo your sentiment towards Hive view handling. That is why I separated
visitDropView from visitDropTable and added DropView operator in preparation
for enhancements, possibly even view catalog.
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