Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
datafusion::functions_aggregate::first_last - Rust

datafusion::functions_aggregate

Module first_last

Expand description

Defines the FIRST_VALUE/LAST_VALUE aggregations.

Structs§

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