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datafusion::functions_aggregate::first_last - Rust

Module datafusion::functions_aggregate::first_last

Expand description

Defines the FIRST_VALUE/LAST_VALUE aggregations.

Structs§

FirstValue
FirstValueAccumulator
FirstValuePhysicalExpr
TO BE DEPRECATED: Builtin FIRST_VALUE physical aggregate expression will be replaced by udf in the future
LastValuePhysicalExpr
TO BE DEPRECATED: Builtin LAST_VALUE physical aggregate expression will be replaced by udf in the future

Functions§

first_value
Returns the first value in a group of values.
first_value_udaf
AggregateFunction that returns a AggregateUDF for [$UDAF]