juntaozhang commented on code in PR #4318:
URL: https://github.com/apache/calcite/pull/4318#discussion_r2049969063
##########
core/src/main/java/org/apache/calcite/sql/SqlCall.java:
##########
@@ -116,16 +116,21 @@ public int operandCount() {
getOperandList());
}
+ private boolean isParenthesesRequired(SqlWriter writer, int leftPrec, int
rightPrec) {
+ final SqlOperator operator = getOperator();
+ boolean condition = leftPrec > operator.getLeftPrec()
+ || (operator.getRightPrec() <= rightPrec && (rightPrec != 0))
+ || writer.isAlwaysUseParentheses() && isA(SqlKind.EXPRESSION)
+ || (operator.getRightPrec() <= rightPrec + 1 &&
isA(SqlKind.COMPARISON));
+ return condition && !(getKind() == SqlKind.SET_SEMANTICS_TABLE);
Review Comment:
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