Enum SargableQuery

pub enum SargableQuery {
    Range(Bound<ScalarValue>, Bound<ScalarValue>),
    IsIn(Vec<ScalarValue>),
    Equals(ScalarValue),
    FullTextSearch(FullTextSearchQuery),
    IsNull(),
}

A query that a basic scalar index (e.g. btree / bitmap) can satisfy

This is a subset of expression operators that is often referred to as the “sargable” operators

Note that negation is not included. Negation should be applied later. For example, to invert an equality query (e.g. all rows where the value is not 7) you can grab all rows where the value = 7 and then do an inverted take (or use a block list instead of an allow list for prefiltering)

Variants

Range(Bound<ScalarValue>, Bound<ScalarValue>)

Retrieve all row ids where the value is in the given [min, max) range

IsIn(Vec<ScalarValue>)

Retrieve all row ids where the value is in the given set of values

Equals(ScalarValue)

Retrieve all row ids where the value is exactly the given value

FullTextSearch(FullTextSearchQuery)

Retrieve all row ids where the value matches the given full text search query

IsNull()

Retrieve all row ids where the value is null

Trait Implementations

impl AnyQuery for SargableQuery

fn as_any(&self) -> &dyn Any

Cast the query as Any to allow for downcasting

fn format(&self, col: &str) -> String

Format the query as a string

fn to_expr(&self, col: String) -> Expr

Convert the query to a datafusion expression

fn dyn_eq(&self, other: &dyn AnyQuery) -> bool

Compare this query to another query

impl Clone for SargableQuery

fn clone(&self) -> SargableQuery

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SargableQuery

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

Formats the value using the given formatter.

impl PartialEq for SargableQuery

fn eq(&self, other: &SargableQuery) -> 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 SargableQuery