miland-db commented on code in PR #49427:
URL: https://github.com/apache/spark/pull/49427#discussion_r1918494303
##########
sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
##########
@@ -79,6 +81,29 @@ setStatementWithOptionalVarKeyword
LEFT_PAREN query RIGHT_PAREN
#setVariableWithOptionalKeyword
;
+sqlStateValue
+ : stringLit
+ ;
+
+declareConditionStatement
+ : DECLARE multipartIdentifier CONDITION (FOR SQLSTATE VALUE?
sqlStateValue)?
+ ;
+
+conditionValue
+ : sqlStateValue
+ | multipartIdentifier
+ | SQLEXCEPTION
+ | NOT FOUND
+ ;
+
+conditionValues
+ : cvList+=conditionValue (COMMA cvList+=conditionValue)*
+ ;
+
+declareHandlerStatement
+ : DECLARE (CONTINUE | EXIT) HANDLER FOR conditionValues (BEGIN
compoundBody END | statement | setStatementWithOptionalVarKeyword)
Review Comment:
I think labels should not be available here, but we maybe @srielau can
confirm.
Is it possible to do something like this:
```
DECLARE EXIT HANDLER FOR DIVISION_BY_ZERO
lbl: BEGIN
...
END;
```
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