Enum BoolExpr 

pub enum BoolExpr {
    Filter(FilterCondition),
    Raw(RawSql),
    And(Box<BoolExpr>, Box<BoolExpr>),
    Or(Box<BoolExpr>, Box<BoolExpr>),
    Not(Box<BoolExpr>),
    Exists(Box<SubquerySpec>),
    NotExists(Box<SubquerySpec>),
    InSubquery(Box<InSubquerySpec>),
    NotInSubquery(Box<InSubquerySpec>),
}

Boolean expression AST for WHERE clauses.

Variants

Filter(FilterCondition)

A single parameterized filter condition.

Raw(RawSql)

Raw SQL fragment (no parameters), e.g. global query filters. Payload is RawSql (pub(crate)) so the variant cannot be constructed by external code.

And(Box<BoolExpr>, Box<BoolExpr>)

AND combination.

Or(Box<BoolExpr>, Box<BoolExpr>)

OR combination.

Not(Box<BoolExpr>)

NOT negation.

Exists(Box<SubquerySpec>)

EXISTS (SELECT 1 FROM related_table WHERE related.fk = outer.pk AND )

NotExists(Box<SubquerySpec>)

NOT EXISTS (…)

InSubquery(Box<InSubquerySpec>)

column IN (SELECT projection FROM source_table [WHERE predicate])

NotInSubquery(Box<InSubquerySpec>)

column NOT IN (SELECT projection FROM source_table [WHERE predicate])

Implementations

impl BoolExpr

pub fn filter( column: impl Into<String>, operator: impl Into<String>, param_count: usize, ) -> Self

pub fn and(self, other: BoolExpr) -> Self

pub fn or(self, other: BoolExpr) -> Self

pub fn not(self) -> Self

pub fn total_param_count(&self) -> usize

Trait Implementations

impl Clone for BoolExpr

fn clone(&self) -> BoolExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoolExpr

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

Formats the value using the given formatter.