DBZ-6794 Dbz crashed on parsing MySQL DDL statement (SELECT 1 + @sum:=1 AS ss;)
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@ -2698,8 +2698,8 @@ predicate
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| predicate SOUNDS LIKE predicate #soundsLikePredicate
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| predicate NOT? LIKE predicate (ESCAPE STRING_LITERAL)? #likePredicate
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| predicate NOT? regex=(REGEXP | RLIKE) predicate #regexpPredicate
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| (LOCAL_ID VAR_ASSIGN)? expressionAtom #expressionAtomPredicate
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| predicate MEMBER OF '(' predicate ')' #jsonMemberOfPredicate
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| expressionAtom #expressionAtomPredicate
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;
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@ -2712,6 +2712,7 @@ expressionAtom
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| mysqlVariable #mysqlVariableExpressionAtom
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| unaryOperator expressionAtom #unaryExpressionAtom
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| BINARY expressionAtom #binaryExpressionAtom
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| LOCAL_ID VAR_ASSIGN expressionAtom #variableAssignExpressionAtom
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| '(' expression (',' expression)* ')' #nestedExpressionAtom
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| ROW '(' expression (',' expression)+ ')' #nestedRowExpressionAtom
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| EXISTS '(' selectStatement ')' #existsExpressionAtom
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@ -308,3 +308,16 @@ cte2 AS (
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)
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SELECT cte1.col1, cte2.col2 FROM cte1 JOIN cte2 ON cte1.id = cte2.id;
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#end
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SELECT !(1 + @sum:=1) AS ss;
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SELECT (@sum:=1 + 1) AS ss;
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SELECT 1 + @sum:=1 AS ss;
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SELECT 100 >> @sum:=1 AS ss;
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SELECT @sum:=1 < 100 AS ss;
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SELECT 100 and @sum:=1 AS ss;
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SELECT
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@sum := @sum + column_name AS running_sum
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FROM
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your_table,
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(SELECT @sum := 0) AS init
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ORDER BY
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some_order_column;
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