Expand description
Defines filter kernels
Structs§
- A builder to construct
FilterPredicate
- A filtering predicate that can be applied to an
Array
- An iterator of
(usize, usize)
each representing an interval[start, end)
whose slots of a bitmap Buffer are true. Each interval corresponds to a contiguous region of memory to be “taken” from an array to be filtered.
Functions§
- build_
filter Deprecated Returns a prepared function optimized to filter multiple arrays. Creating this function requires time, but using it is faster than filter when the same filter needs to be applied to multiple arrays (e.g. a multi-columnRecordBatch
). WARNING: the nulls offilter
are ignored and the value on its slot is considered. Therefore, it is considered undefined behavior to passfilter
with null values. - Filters an Array, returning elements matching the filter (i.e. where the values are true).
- Returns a new RecordBatch with arrays containing only values matching the filter.
- Remove null values by do a bitmask AND operation with null bits and the boolean bits.
Type Aliases§
- Filter
Deprecated Function that can filter arbitrary arrays