Enum FilterNode 

pub enum FilterNode {
    Compare {
        column: String,
        op: FilterOp,
        value: FilterLiteral,
    },
    And(Box<FilterNode>, Box<FilterNode>),
    Or(Box<FilterNode>, Box<FilterNode>),
    Not(Box<FilterNode>),
}

Filter expression tree for SQL pushdown.

Built from comparisons and logical operations. Represents typed column-vs-literal predicates suitable for pushdown to a SQL backend.

Variants

Compare

Column compared to a literal value.

Fields

column: String

op: FilterOp

value: FilterLiteral

And(Box<FilterNode>, Box<FilterNode>)

Logical AND of two filter nodes.

Or(Box<FilterNode>, Box<FilterNode>)

Logical OR of two filter nodes.

Not(Box<FilterNode>)

Logical NOT of a filter node.

Trait Implementations

impl Clone for FilterNode

fn clone(&self) -> FilterNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterNode

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

Formats the value using the given formatter.

impl PartialEq for FilterNode

fn eq(&self, other: &FilterNode) -> 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 StructuralPartialEq for FilterNode