gatorsmile commented on a change in pull request #24859: [SPARK-28033][SQL]
String concatenation should low priority than other operators
URL: https://github.com/apache/spark/pull/24859#discussion_r296460422
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File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -668,10 +668,11 @@ valueExpression
: primaryExpression
#valueExpressionDefault
Review comment:
Could you add a comment above line 667?
> Note: check the operator precedence when adding the new operator.
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