Crate datafusion_roaring 

Roaring bitmap scalar and aggregate UDFs for Apache DataFusion.

The SQL API uses Arrow Binary for 32-bit roaring::RoaringBitmap values. Serialized values carry a versioned header and can be stored in Arrow IPC or Parquet.

Functions

all_udafs

Builds every aggregate UDF exported by this crate, including documented aliases.

all_udfs

Builds every scalar UDF exported by this crate, including documented aliases.

decode_bitmap

Deserializes a 32-bit roaring bitmap encoded by encode_bitmap.

encode_bitmap

Serializes a 32-bit roaring bitmap using this crate’s versioned format.

roaring_agg_udaf

Builds roaring_agg(UInt32) -> Binary.

roaring_cardinality_udf

Builds roaring_cardinality(Binary) -> UInt64.

roaring_contains_udf

Builds roaring_contains(Binary, UInt32) -> Boolean.

roaring_difference_udf

Builds roaring_difference(Binary, Binary) -> Binary.

roaring_intersection_udf

Builds roaring_intersection(Binary, Binary) -> Binary.

roaring_or_agg_udaf

Builds roaring_or_agg(Binary) -> Binary.

roaring_union_udf

Builds roaring_union(Binary, Binary) -> Binary.

roaring_xor_udf

Builds roaring_xor(Binary, Binary) -> Binary.