Struct TypedString 

pub struct TypedString {
    pub data_type: DataType,
    pub value: ValueWithSpan,
    pub uses_odbc_syntax: bool,
}

A constant of form <data_type> 'value'. This can represent ANSI SQL DATE, TIME, and TIMESTAMP literals (such as DATE '2020-01-01'), as well as constants of other types (a non-standard PostgreSQL extension).

Fields

data_type: DataType

value: ValueWithSpan

The value of the constant. Hint: you can unwrap the string value using value.into_string().

uses_odbc_syntax: bool

Flags whether this TypedString uses the [ODBC syntax].

Example:

-- An ODBC date literal:
SELECT {d '2025-07-16'}
-- This is equivalent to the standard ANSI SQL literal:
SELECT DATE '2025-07-16'

[ODBC syntax]: https://learn.microsoft.com/en-us/sql/odbc/reference/develop-app/date-time-and-timestamp-literals?view=sql-server-2017

Trait Implementations

impl Clone for TypedString

fn clone(&self) -> TypedString

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TypedString

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for TypedString

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Hash for TypedString

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for TypedString

fn cmp(&self, other: &TypedString) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for TypedString

fn eq(&self, other: &TypedString) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for TypedString

fn partial_cmp(&self, other: &TypedString) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Visit for TypedString

fn visit<V>(&self, visitor: &mut V) -> ControlFlow<<V as Visitor>::Break>

where V: Visitor,

impl VisitMut for TypedString

fn visit<V>(&mut self, visitor: &mut V) -> ControlFlow<<V as VisitorMut>::Break>

where V: VisitorMut,

impl Eq for TypedString

impl StructuralPartialEq for TypedString