Module predicate 

Scan predicates for block-level predicate pushdown.

A ScanPredicate describes a filter on a single column that can be evaluated against BlockStats to skip entire blocks without decompressing.

Predicates work for both numeric columns (comparing against BlockStats.min / BlockStats.max) and string columns (comparing against BlockStats.str_min / BlockStats.str_max). For string Eq predicates the optional bloom filter provides an additional fast-reject path.

Structs

ScanPredicate

A predicate on a single column for block-level pushdown.

Enums

PredicateOp

Comparison operator for scan predicates.

PredicateValue

The value side of a scan predicate.

Constants

BLOOM_BYTES

Bloom filter size in bytes (2048 bits).

Functions

bloom_insert

Insert a string value into a bloom filter buffer.

bloom_may_contain

Test whether a string value may be present in a bloom filter.

build_bloom

Build a new bloom filter buffer and insert all provided string values.