dongjoon-hyun commented on a change in pull request #24749: [SPARK-27890][SQL]
Improve SQL parser error message for character-only identifier with hyphens
except those in expressions
URL: https://github.com/apache/spark/pull/24749#discussion_r291758740
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -135,7 +137,8 @@ statement
(ALTER | CHANGE) COLUMN? qualifiedName
(TYPE dataType)? (COMMENT comment=STRING)? colPosition?
#alterTableColumn
| ALTER TABLE tableIdentifier partitionSpec?
- CHANGE COLUMN? identifier colType colPosition?
#changeColumn
+ CHANGE COLUMN?
+ colName=errorCapturingIdentifier colType colPosition?
#changeColumn
Review comment:
@yeshengm . Since we remove the test coverage for this and this PR doesn't
support this, this PR should not touch this line.
> This is due to a recent PR on qualified column name. Fixed by removing
error capture in that syntax.
Could you revert this?
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