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datafusion::functions_aggregate::first_last - Rust
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datafusion::functions_aggregate

Module first_last

Source
Expand description

Defines the FIRST_VALUE/LAST_VALUE aggregations.

Structs§

FirstValue
FirstValueAccumulator
LastValue

Functions§

first_value
Returns the first value in a group of values.
first_value_udaf
AggregateFunction that returns a AggregateUDF for FirstValue
last_value
Returns the last value in a group of values.
last_value_udaf
AggregateFunction that returns a AggregateUDF for LastValue