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Update comments / docs for Spanned (#1549)

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Co-authored-by: Ifeanyi Ubah <ify1992@yahoo.com>
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Andrew Lamb 2024-11-30 08:08:55 -05:00 • committed by GitHub
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src/ast/mod.rs
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@ -596,9 +596,21 @@ pub enum CeilFloorKind {
/// An SQL expression of any type.
///
/// # Semantics / Type Checking
///
/// The parser does not distinguish between expressions of different types
/// (e.g. boolean vs string), so the caller must handle expressions of
/// inappropriate type, like `WHERE 1` or `SELECT 1=1`, as necessary.
/// (e.g. boolean vs string). The caller is responsible for detecting and
/// validating types as necessary (for example `WHERE 1` vs `SELECT 1=1`)
/// See the [README.md] for more details.
///
/// [README.md]: https://github.com/apache/datafusion-sqlparser-rs/blob/main/README.md#syntax-vs-semantics
///
/// # Equality and Hashing Does not Include Source Locations
///
/// The `Expr` type implements `PartialEq` and `Eq` based on the semantic value
/// of the expression (not bitwise comparison). This means that `Expr` instances
/// that are semantically equivalent but have different spans (locations in the
/// source tree) will compare as equal.
#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
#[cfg_attr(