Trait FilterExpressionExt 

pub trait FilterExpressionExt {
    // Required methods
    fn substrait_to_df(&self, schema: Arc<ArrowSchema>) -> Result<Expr>;
    fn df_to_substrait(expr: Expr, schema: &Schema) -> Result<Self>
       where Self: Sized;
}

Helper trait to bridge lance-encoding and substrait

Required Methods

fn substrait_to_df(&self, schema: Arc<ArrowSchema>) -> Result<Expr>

Convert a lance-encoding filter expression (which we assume is substrait encoded) into a datafusion expr

fn df_to_substrait(expr: Expr, schema: &Schema) -> Result<Self>

where Self: Sized,

Convert a datafusion filter expression into a lance-encoding filter expression (using substrait)

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl FilterExpressionExt for FilterExpression

fn substrait_to_df(&self, schema: Arc<ArrowSchema>) -> Result<Expr>

fn df_to_substrait(expr: Expr, schema: &Schema) -> Result<Self>

where Self: Sized,

Implementors