Module expr 

Expression DSL used by both eager and lazy APIs.

Enums

AggFunc

Expression AST and supporting enums. Supported aggregation functions.

Expr

Expression AST and supporting enums. Expression AST used by DataFrame and LazyFrame.

Operator

Expression AST and supporting enums. Supported binary operators.

Scalar

Expression AST and supporting enums. Scalar literal values.

UnaryOperator

Expression AST and supporting enums. Supported unary operators.

Functions

all

Expression builder helpers. Create a wildcard expression that expands to all columns in projections.

col

Expression builder helpers. Create an expression that refers to a column by name (case-sensitive).

lit

Expression builder helpers. Create a literal expression from a scalar value.