v0.2.0

Added

• Output type halfvec for the embedding backend: bee.add_column(..., 'halfvec', 'embedding', p_output_schema => '{"dimensions": N}') writes half-precision vectors to a pgvector halfvec(N) column. Half the storage of vector, and HNSW indexes it up to 4000 dimensions instead of 2000, enough for 3072-dimension models. Needs pgvector 0.7 or later; an existing halfvec(N) column is used as the target.

Upgrading

• Extension version 0.15 (0015_halfvec.sql): run pgbee install, or ALTER EXTENSION pgbee UPDATE where pgbee is installed as an extension. The worker contract does not change; a worker from 0.1.0 already writes halfvec columns.