Struct ProjectedPredicate 

pub struct ProjectedPredicate { /* private fields */ }

A predicate whose column lookups are resolved once to projection slots. Unsupported expressions return None and continue through the canonical map-backed evaluator.

Implementations

impl ProjectedPredicate

pub fn compile( expression: &ScalarExpr, fields: &[String], params: &[SQLParam], ) -> Result<Option<Self>, SQLError>

pub fn compile_with_schema( expression: &ScalarExpr, schema: &RowSchema, params: &[SQLParam], ) -> Result<Option<Self>, SQLError>

Compile against structured SQL identities instead of interpreting punctuation in public labels as qualification metadata.

pub fn keep(&self, values: &[&Value]) -> Result<bool, SQLError>

pub fn keep_indexed( &self, values: &[Value], projection: &[usize], ) -> Result<bool, SQLError>

Evaluate against backend-owned values through a positional projection without constructing an intermediate reference array. A usize::MAX projection slot reads as SQL NULL.

pub fn keep_row(&self, row: &PhysicalRowView<'_>) -> Result<bool, SQLError>

Evaluate directly against a composite physical row. Column names and qualifiers were resolved to logical positions during compilation, so the hot path neither builds a named row nor allocates a reference list.