Struct SetOperationBindingPowerTable 

pub struct SetOperationBindingPowerTable {
    pub union_except: BindingPower,
    pub intersect: BindingPower,
}

Dialect-owned set-operation binding powers.

Set operations combine SetExpr query bodies rather than Expr nodes, so they use a small parallel table keyed by SetOperator. The same binding-power discipline still applies: parser precedence climbing and render-time parenthesization both read this table, so INTERSECT cannot drift from UNION/EXCEPT in one direction only.

Fields

union_except: BindingPower

Binding power of UNION/EXCEPT.

intersect: BindingPower

Binding power of INTERSECT (tighter than UNION/EXCEPT).

Implementations

impl SetOperationBindingPowerTable

pub const STANDARD: Self

Standard SQL/PostgreSQL set-operation binding powers.

pub const fn set_operation(&self, op: &SetOperator) -> BindingPower

Return the binding power for op.

pub const fn with_set_operator(self, op: &SetOperator, bp: BindingPower) -> Self

Return a copy of this table with one set-operator class replaced.

pub const fn needs_parens( &self, parent: &SetOperator, child: &SetOperator, side: Side, ) -> bool

Return whether a child set operation needs parentheses under parent.

Trait Implementations

impl Clone for SetOperationBindingPowerTable

fn clone(&self) -> SetOperationBindingPowerTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SetOperationBindingPowerTable

impl Debug for SetOperationBindingPowerTable

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

Formats the value using the given formatter.

impl Eq for SetOperationBindingPowerTable

impl PartialEq for SetOperationBindingPowerTable

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SetOperationBindingPowerTable