maropu commented on a change in pull request #29202:
URL: https://github.com/apache/spark/pull/29202#discussion_r459350948
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -245,7 +245,7 @@ statement
| SET TIME ZONE timezone=(STRING | LOCAL)
#setTimeZone
| SET TIME ZONE .*?
#setTimeZone
| SET .*?
#setConfiguration
- | RESET
#resetConfiguration
+ | RESET multipartIdentifier?
#resetConfiguration
Review comment:
How should we handle a hive session conf in `RESET`, e.g.,
`hivevar:xxx:yyy`? https://issues.apache.org/jira/browse/SPARK-18086
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