EVA-127: knowledge embeddings + costs tables + migration#120
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suzil merged 2 commits intoMar 2, 2026
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Adds three new database artifacts to support the Phase 3 embedding pipeline: - knowledge_embeddings table: stores packed Float32 BLOB vectors per entry, with content_hash for dedup and ON DELETE CASCADE for referential integrity - knowledge_costs table: per-call cost tracking for Voyage AI / OpenAI calls, powering the cost summary in the Knowledge Library header (EVA-168) - Idempotent ALTER TABLE: adds updated_by (provenance) and version (optimistic concurrency) columns to knowledge_entries via try/catch so re-runs are safe Made-with: Cursor
Made-with: Cursor
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Summary
knowledge_embeddingstable: packed Float32 BLOB vector per entry, content-hash dedup, ON DELETE CASCADEknowledge_coststable: per-API-call cost tracking for Voyage AI / OpenAI embedding callsupdated_by+versioncolumns toknowledge_entriesvia idempotent ALTER TABLE (try/catch, safe to re-run)Test plan
cabal build✅)knowledge_entriesrows getupdated_by = 'system',version = 1defaultsIF NOT EXISTS+ try/catch)Closes EVA-127
Made with Cursor