Module polars_plan::dsl

Domain specific language for the Lazy api.

Re-exports

pub use cat::*;

pub use functions::*;

Modules

cat

functions

Functions

string

Macros

map

map_owned

Structs

JoinOptions

ListNameSpace

Specialized expressions for Series of DataType::List.

SpecialEq

Wrapper type that has special equality properties depending on the inner type specialization

StrpTimeOptions

When

Intermediate state of when(..).then(..).otherwise(..) expr.

WhenThen

Intermediate state of when(..).then(..).otherwise(..) expr.

WhenThenThen

Intermediate state of chain when then exprs.

Enums

AggExpr

Excluded

Expr

Queries consists of multiple expressions.

FunctionExpr

Operator

Traits

BinaryUdfOutputField

FunctionOutputField

RenameAliasFn

SeriesBinaryUdf

A wrapper trait for any binary closure Fn(Series, Series) -> PolarsResult<Series>

SeriesUdf

A wrapper trait for any closure Fn(Vec<Series>) -> PolarsResult<Series>

Functions

apply_multiple

Apply a function/closure over the groups of multiple columns. This should only be used in a groupby aggregation.

binary_expr

count

Count expression

first

First column in DataFrame

last

Last column in DataFrame

lit

Create a Literal Expression from L

map_list_multiple

Apply a function/closure over multiple columns once the logical plan get executed.

map_multiple

Apply a function/closure over multiple columns once the logical plan get executed.

ternary_expr

when

Start a when-then-otherwise expression

Type Definitions

GetOutput