yaooqinn commented on a change in pull request #29064:
URL: https://github.com/apache/spark/pull/29064#discussion_r453524124
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
##########
@@ -240,6 +240,10 @@ statement
| MSCK REPAIR TABLE multipartIdentifier
#repairTable
| op=(ADD | LIST) identifier (STRING | .*?)
#manageResource
| SET ROLE .*?
#failNativeCommand
+ | SET TIME ZONE ALL
#listTimeZones
+ | SET TIME ZONE interval
#setTimeZone
+ | SET TIME ZONE timezone=(STRING | LOCAL)
#setTimeZone
+ | SET TIME ZONE .*?
#setTimeZone
Review comment:
this is used to fail invalid set time zone syntax explicitly, cuz' now
we support
```sql
spark-sql (default)> set time zone abcd;
key value
time zone abcd <undefined>
```
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