Module nth_value 

nth_value window function implementation

Structs

NthValue

NthValueState

Enums

NthValueKind

Tag to differentiate special use cases of the NTH_VALUE built-in window function.

Functions

first_value

Create an expression to represent the first_value window function

first_value_udwf

Returns a WindowUDF for first_value.

last_value

Create an expression to represent the last_value window function

last_value_udwf

Returns a WindowUDF for last_value.

nth_value

Create an expression to represent the nth_value window function

nth_value_udwf

Returns a WindowUDF for nth_value.