kosiew commented on code in PR #22999:
URL: https://github.com/apache/datafusion/pull/22999#discussion_r3441323238
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datafusion/sql/src/unparser/dialect.rs:
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@@ -333,6 +338,15 @@ pub enum CharacterLengthStyle {
CharacterLength,
}
+/// `DistinctFromStyle` to use for unparsing `IsDistinctFrom` and
`IsNotDistinctFrom` operators
+#[derive(Clone, Copy, PartialEq)]
+pub enum DistinctFromStyle {
+ /// DBMS supports `IS (NOT) DISTINCT FROM`
+ FullText,
+ /// DMBS supports equivalent operations via `<=>` and `NOT <=>`
Review Comment:
Nice improvement to the docs.
Small nit: `DMBS` looks like a typo and should probably be `DBMS`.
Optional cleanup only, no behavioral impact.
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