Struct CoalesceExpr 

pub struct CoalesceExpr { /* private fields */ }

Left-hand operand of a coalesce-based filter — chain a comparator method to turn it into a FilterExpr.

Implementations

impl CoalesceExpr

pub fn eq<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn ne<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn lt<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn lte<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn gt<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn gte<V>(self, value: V) -> FilterExpr

where V: IntoSqlValue,

pub fn is_null(self) -> FilterExpr

COALESCE(...) IS NULL — every input column was null. No bind: this side never carries a value.

pub fn is_not_null(self) -> FilterExpr

COALESCE(...) IS NOT NULL — at least one input column has a value.

Trait Implementations

impl Clone for CoalesceExpr

fn clone(&self) -> CoalesceExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CoalesceExpr

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

Formats the value using the given formatter.