NobiGo commented on code in PR #4214:
URL: https://github.com/apache/calcite/pull/4214#discussion_r2021953640
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core/src/main/java/org/apache/calcite/sql/SqlDialect.java:
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@@ -795,6 +795,14 @@ public boolean supportBooleanCaseWhen() {
return true;
}
+ /**
+ * Returns whether to enable unparse of "macro-like" calls such as IS TRUE.
+ * "A IS TRUE" can be unparse to "A IS NOT NULL AND A" When A is
deterministic.
+ * Otherwise, inconsistent results may occur. */
+ public boolean supportMacroLikeUnparse() {
Review Comment:
This has not been fixed. It would be more accurate to say that it is a kind
of compatible approach, which refers to SqlValidator#withCallRewrite.
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