Module filter 

Expression-based row filtering for dataframes.

Re-exports

pub use filtering::*;

Modules

error

Filter-specific error types.

filtering

Operator matching and function-based filtering logic.

Structs

Expression

A single filter comparison: left operator right.

FilterRules

Parsed filter expression tree, ready to be evaluated against a data source.

Enums

DataInput

One side of a filter expression — a literal value, column key, or function call.

FilterArgument

The right-hand side of a filter expression, resolved to a concrete form.

FilterCombinantion

A tree of filter expressions connected by && / || operators.

FilterJoin

The operators for filtering functions

FilterOperator

The operators for filtering functions

Function

Built-in column functions usable in filter expressions (e.g. .len()).

Rule

Traits

Filtering

Trait for data sources that can evaluate filter expressions.