Struct SimpleFilterEvaluator 

pub struct SimpleFilterEvaluator {
    column_name: String,
    predicate: SimplePredicate,
}

Evaluates supported single-column predicates with precompiled regular expressions. Compound predicates preserve SQL null semantics until conversion to a scan mask.

Fields

column_name: String

predicate: SimplePredicate

Implementations

impl SimpleFilterEvaluator

pub fn new<T: Literal>( column_name: String, lit: T, op: Operator, ) -> Option<Self>

pub fn try_new(predicate: &Expr) -> Option<Self>

pub fn try_new_with_column_type( predicate: &Expr, column_type: &impl Fn(&str) -> Option<DataType>, ) -> Option<Self>

Recognizes single-column filters, including lossless string dictionary casts when the caller can resolve the column’s type.

pub fn column_name(&self) -> &str

Returns the referenced column name.

pub fn is_eq(&self) -> bool

pub fn is_not_eq(&self) -> bool

pub fn is_lt(&self) -> bool

pub fn is_lt_eq(&self) -> bool

pub fn is_gt(&self) -> bool

pub fn is_gt_eq(&self) -> bool

pub fn is_or_eq_chain(&self) -> bool

Returns true for an OR chain of equality comparisons.

pub fn literal_value(&self) -> Option<Value>

Returns the literal of a bare comparison, without discarding compound conditions.

pub fn literal_list_values(&self) -> Option<Vec<Value>>

Returns equality-OR literals, or None for other predicates or unsupported values.

pub fn evaluate_scalar(&self, input: &ScalarValue) -> Result<bool>

pub fn evaluate_array(&self, input: &ArrayRef) -> Result<BooleanBuffer>

pub fn evaluate_vector(&self, input: &VectorRef) -> Result<BooleanBuffer>

fn evaluate_datum( &self, input: &impl Datum, len: usize, ) -> Result<BooleanBuffer>

pub fn cast_timestamp_unit( &self, target: &ConcreteDataType, ) -> Option<TimestampUnitCast>

Adapts timestamp predicates to an older SST’s timestamp unit without rounding away boundary rows. Nonrepresentable equality literals cannot match a row.

Trait Implementations

impl Clone for SimpleFilterEvaluator

fn clone(&self) -> SimpleFilterEvaluator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimpleFilterEvaluator

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

Formats the value using the given formatter.