imback82 commented on a change in pull request #26182: [SPARK-29523][SQL] SHOW
COLUMNS should do multi-catalog resolution.
URL: https://github.com/apache/spark/pull/26182#discussion_r340755197
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -196,8 +196,8 @@ statement
LIKE pattern=STRING partitionSpec?
#showTable
| SHOW TBLPROPERTIES table=tableIdentifier
('(' key=tablePropertyKey ')')?
#showTblProperties
- | SHOW COLUMNS (FROM | IN) tableIdentifier
- ((FROM | IN) db=errorCapturingIdentifier)?
#showColumns
+ | SHOW COLUMNS (FROM | IN) table=multipartIdentifier
+ ((FROM | IN) namespace=multipartIdentifier)?
#showColumns
Review comment:
nit: remove extra indentation.
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