Struct SqlExpression 

pub struct SqlExpression { /* private fields */ }

Lightweight SQL expression container.

Implementations

impl SqlExpression

pub const fn identifier(identifier: SqlIdentifier) -> Self

Creates an expression from an identifier.

pub const fn column(column: SqlColumnRef) -> Self

Creates an expression from a column reference.

pub const fn value(value: SqlValue) -> Self

Creates an expression from a literal value.

pub const fn parameter(parameter: SqlParameter) -> Self

Creates an expression from a parameter placeholder.

pub fn binary(left: Self, operator: SqlOperator, right: Self) -> Self

Creates a simple binary operator expression.

pub fn predicate(predicate: SqlPredicate) -> Self

Creates an expression from a predicate.

pub const fn kind(&self) -> &SqlExpressionKind

Returns the expression kind.

Trait Implementations

impl Clone for SqlExpression

fn clone(&self) -> SqlExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SqlExpression

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

Formats the value using the given formatter.

impl Display for SqlExpression

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

Formats the value using the given formatter.

impl From<SqlColumnRef> for SqlExpression

fn from(value: SqlColumnRef) -> Self

Converts to this type from the input type.

impl From<SqlIdentifier> for SqlExpression

fn from(value: SqlIdentifier) -> Self

Converts to this type from the input type.

impl From<SqlParameter> for SqlExpression

fn from(value: SqlParameter) -> Self

Converts to this type from the input type.

impl From<SqlValue> for SqlExpression

fn from(value: SqlValue) -> Self

Converts to this type from the input type.

impl Hash for SqlExpression

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

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 SqlExpression

fn cmp(&self, other: &SqlExpression) -> 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 SqlExpression

fn eq(&self, other: &SqlExpression) -> 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 SqlExpression

fn partial_cmp(&self, other: &SqlExpression) -> 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 Eq for SqlExpression

impl StructuralPartialEq for SqlExpression