srielau commented on code in PR #49427:
URL: https://github.com/apache/spark/pull/49427#discussion_r1920340784
##########
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:
The handler action (SQL/PSM 15.2) is simply:
<handler action> ::=
<SQL procedure statement>
So there is nothing special about the compound statement, if it's used. It
can include a label.
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