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datafusion::functions_aggregate::count - Rust
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datafusion::functions_aggregate

Module count

Source

Structs§

Count

Functions§

count
Count the number of non-null values in the column
count_all
Creates aggregation to count all rows, equivalent to COUNT(*), COUNT(), COUNT(1)
count_distinct
count_udaf
AggregateFunction that returns a AggregateUDF for Count