Struct JoinFilter 

pub struct JoinFilter { /* private fields */ }

A filter for join condition evaluation between two rows.

Implementations

impl JoinFilter

pub fn new( expr: &Expression, left_columns: &[String], right_columns: &[String], function_registry: &FunctionRegistry, ) -> Result<Self>

Create a join filter by compiling the condition.

Arguments

• expr - The join condition expression
• left_columns - Column names for the left table
• right_columns - Column names for the right table

pub fn with_context(self, ctx: &ExecutionContext) -> Self

Set parameters from execution context. This is required when the join condition contains parameter placeholders ($1, $2, etc.).

pub fn matches(&self, left_row: &Row, right_row: &Row) -> Result<bool>

Check if a pair of rows satisfies the join condition.

pub fn matches_checked(&self, left_row: &Row, right_row: &Row) -> Result<bool>

Checked join predicate evaluation. Runtime expression errors must be propagated by physical operators rather than converted into non-matches.

pub fn matches_row_ref_checked( &self, left_row: &RowRef, right_row: &Row, ) -> Result<bool>

Checked predicate evaluation over a deferred JOIN outer row.

This preserves the same compiled program and SQL semantics as matches_checked, but lets a following JOIN edge read projected slots without forcing the preceding edge to materialize an owned Row.

pub fn matches_row_refs_checked( &self, left_row: &RowRef, right_row: &RowRef, ) -> Result<bool>

Checked predicate evaluation over two virtual JOIN inputs.

This is the hash-join residual path: equality candidates remain row references until the complete ON predicate accepts the pair.

pub fn program(&self) -> &SharedProgram

Get the underlying program.

Trait Implementations

impl Clone for JoinFilter

fn clone(&self) -> JoinFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.