samuelcolvin commented on code in PR #1686:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/1686#discussion_r1935157823
##########
src/dialect/mod.rs:
##########
@@ -340,12 +340,21 @@ pub trait Dialect: Debug + Any {
/// Returns true if the dialect supports lambda functions, for example:
///
/// ```sql
- /// SELECT transform(array(1, 2, 3), x -> x + 1); -- returns [2,3,4]
+ /// SELECT transform(array(1, 2, 3), (x) -> x + 1); -- returns [2,3,4]
/// ```
fn supports_lambda_functions(&self) -> bool {
false
}
+ /// Returns true if the dialect supports lambda functions without
parentheses for a single argument, for example:
+ ///
+ /// ```sql
+ /// SELECT transform(array(1, 2, 3), x -> x + 1); -- returns [2,3,4]
+ /// ```
+ fn supports_parensless_lambda_functions(&self) -> bool {
Review Comment:
Agreed. The lambda syntax looks identical to Pg JSON lookup syntax with a
completely different meaning.
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