Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/12853#discussion_r61948745
--- Diff:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ---
@@ -81,18 +81,8 @@ statement
DROP (IF EXISTS)? partitionSpec (',' partitionSpec)* PURGE?
#dropTablePartitions
| ALTER VIEW tableIdentifier
DROP (IF EXISTS)? partitionSpec (',' partitionSpec)*
#dropTablePartitions
- | ALTER TABLE tableIdentifier partitionSpec?
- SET FILEFORMAT fileFormat
#setTableFileFormat
| ALTER TABLE tableIdentifier partitionSpec? SET locationSpec
#setTableLocation
- | ALTER TABLE tableIdentifier partitionSpec?
- CHANGE COLUMN? oldName=identifier colType
- (FIRST | AFTER after=identifier)? (CASCADE | RESTRICT)?
#changeColumn
--- End diff --
We can drop the `FIRST` and `AFTER` keywords.
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