Module kamei 

Kamei 14-feature JIT-SDP canonical change vector enrichment.

See spec §3.1 and Kamei et al. 2013 (TSE).

Implemented as a series of SQL UPDATE passes over the commits + changes tables. Run after the main commit/changes ingest + complexity pass.

Functions

enrich

Enrich all rows in commits table with the 14 Kamei features. Idempotent; safe to call multiple times.