fmguerreiro commented on code in PR #2307:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/2307#discussion_r3295534481
##########
src/parser/mod.rs:
##########
@@ -9926,6 +9952,71 @@ impl<'a> Parser<'a> {
}
}
+ fn parse_exclusion_element(&mut self) -> Result<ExclusionElement,
ParserError> {
+ // `index_elem` grammar: { col | (expr) } [ opclass ] [ ASC | DESC ] [
NULLS FIRST | LAST ].
+ // Shared with `CREATE INDEX` columns.
+ let (
+ OrderByExpr {
+ expr,
+ options: order,
+ ..
+ },
+ operator_class,
+ ) = self.parse_order_by_expr_inner(true)?;
+
+ self.expect_keyword_is(Keyword::WITH)?;
+ let operator = self.parse_exclusion_operator()?;
+
+ Ok(ExclusionElement {
+ expr,
+ operator_class,
+ order,
+ operator,
+ })
+ }
+
+ /// Parse the operator that follows `WITH` in an `EXCLUDE` element.
+ ///
+ /// Accepts either a single operator token (e.g. `=`, `&&`, `<->`) or the
+ /// Postgres `OPERATOR(schema.op)` form for schema-qualified operators.
Review Comment:
the destructuring was dropped in 60b5fd2: parse_exclude_constraint_element
now calls parse_create_index_expr() and stores the IndexColumn directly as
`column`, no OrderByExpr destructuring. the redundant inline grammar comment is
removed in f03de0a. the remaining `///` on parse_exclude_constraint_operator is
rustdoc, consistent with the other private parse_* helpers in this file. let me
know if you want that dropped too.
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