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DBZ-6794 Dbz crashed on parsing MySQL DDL statement (SELECT 1 + @sum:=1 AS ss;)

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harveyyue 2023-08-12 20:17:37 +08:00 committed by Jiri Pechanec
parent b3098de0fd
commit bb579983ca
2 changed files with 16 additions and 2 deletions
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3
debezium-ddl-parser/src/main/antlr4/io/debezium/ddl/parser/mysql/generated/MySqlParser.g4
View File

@ -2698,8 +2698,8 @@ predicate
| predicate SOUNDS LIKE predicate #soundsLikePredicate
| predicate NOT? LIKE predicate (ESCAPE STRING_LITERAL)? #likePredicate
| predicate NOT? regex=(REGEXP | RLIKE) predicate #regexpPredicate
| (LOCAL_ID VAR_ASSIGN)? expressionAtom #expressionAtomPredicate
| predicate MEMBER OF '(' predicate ')' #jsonMemberOfPredicate
| expressionAtom #expressionAtomPredicate
;
@ -2712,6 +2712,7 @@ expressionAtom
| mysqlVariable #mysqlVariableExpressionAtom
| unaryOperator expressionAtom #unaryExpressionAtom
| BINARY expressionAtom #binaryExpressionAtom
| LOCAL_ID VAR_ASSIGN expressionAtom #variableAssignExpressionAtom
| '(' expression (',' expression)* ')' #nestedExpressionAtom
| ROW '(' expression (',' expression)+ ')' #nestedRowExpressionAtom
| EXISTS '(' selectStatement ')' #existsExpressionAtom

13
debezium-ddl-parser/src/test/resources/mysql/examples/dml_select.sql
View File

@ -308,3 +308,16 @@ cte2 AS (
)
SELECT cte1.col1, cte2.col2 FROM cte1 JOIN cte2 ON cte1.id = cte2.id;
#end
SELECT !(1 + @sum:=1) AS ss;
SELECT (@sum:=1 + 1) AS ss;
SELECT 1 + @sum:=1 AS ss;
SELECT 100 >> @sum:=1 AS ss;
SELECT @sum:=1 < 100 AS ss;
SELECT 100 and @sum:=1 AS ss;
SELECT
@sum := @sum + column_name AS running_sum
FROM
your_table,
(SELECT @sum := 0) AS init
ORDER BY
some_order_column;