Struct Column 

pub struct Column<T> { /* private fields */ }

A typed reference to a database column.

T represents the Rust type this column maps to (e.g., Column<i32> for INTEGER). The type parameter enables compile-time type checking when the proc macro generates operator methods.

Implementations

impl<T> Column<T>

pub const fn new(name: &'static str, table: &'static str) -> Self

Create a new column reference.

pub const fn name(&self) -> &'static str

The database column name.

pub const fn table(&self) -> &'static str

The table this column belongs to.

pub const fn into_any(&self) -> AnyColumn

Erase the type information for dynamic use.

impl<T> Column<T>

where T: Into<Value> + Clone,

pub fn eq(&self, val: impl Into<Value>) -> Expr

column = value

pub fn ne(&self, val: impl Into<Value>) -> Expr

column != value

pub fn gt(&self, val: impl Into<Value>) -> Expr

column > value

pub fn gte(&self, val: impl Into<Value>) -> Expr

column >= value

pub fn lt(&self, val: impl Into<Value>) -> Expr

column < value

pub fn lte(&self, val: impl Into<Value>) -> Expr

column <= value

pub fn between(&self, low: impl Into<Value>, high: impl Into<Value>) -> Expr

column BETWEEN low AND high

pub fn in_list(&self, vals: Vec<impl Into<Value>>) -> Expr

column IN (values...) — empty list renders as 1=0 (always false)

pub fn not_in(&self, vals: Vec<impl Into<Value>>) -> Expr

column NOT IN (values...) — empty list renders as 1=1 (always true)

impl<T> Column<T>

pub fn like(&self, pattern: impl Into<Value>) -> Expr

column LIKE pattern — e.g., .like("A%")

pub fn ilike(&self, pattern: impl Into<Value>) -> Expr

column ILIKE pattern — case-insensitive (PostgreSQL)

pub fn contains(&self, val: &str) -> Expr

column LIKE '%value%' — shorthand for contains

pub fn starts_with(&self, val: &str) -> Expr

column LIKE 'value%' — shorthand for starts_with

pub fn ends_with(&self, val: &str) -> Expr

column LIKE '%value' — shorthand for ends_with

impl<T> Column<T>

pub fn is_null(&self) -> Expr

column IS NULL

pub fn is_not_null(&self) -> Expr

column IS NOT NULL

impl<T> Column<T>

pub fn asc(&self) -> OrderExpr

column ASC

pub fn desc(&self) -> OrderExpr

column DESC

pub fn asc_nulls_last(&self) -> OrderExpr

column ASC NULLS LAST

pub fn desc_nulls_first(&self) -> OrderExpr

column DESC NULLS FIRST

Trait Implementations

impl<T: Clone> Clone for Column<T>

fn clone(&self) -> Column<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Column<T>

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

Formats the value using the given formatter.