Vitalii Li created SPARK-42681:
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Summary: Relax ordering constraint for ALTER TABLE ADD|REPLACE
column options
Key: SPARK-42681
URL: https://issues.apache.org/jira/browse/SPARK-42681
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.5.0
Reporter: Vitalii Li
Fix For: 3.5.0
Currently the grammar for ALTER TABLE ADD|REPLACE column is:
qualifiedColTypeWithPosition
: name=multipartIdentifier dataType (NOT NULL)? defaultExpression?
commentSpec? colPosition?
;
This enforces a constraint on the order of: (NOT NULL, DEFAULT value, COMMENT
value FIRST|AFTER value). We can update the grammar to allow these options in
any order instead, to improve usability.
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