Changeset 0.14.0 (#67)

server/database/migrations/009_notes_embedding.sql

@@ -0,0 +1,12 @@
+-- 009_notes_embedding.sql
+-- Adds vector embedding column to notes for semantic search.
+-- Uses the same vector(3072) dimension as kb_chunks for uniformity.
+
+ALTER TABLE notes ADD COLUMN IF NOT EXISTS embedding vector(3072);
+
+-- NOTE: pgvector HNSW indexes are limited to 2000 dimensions.
+-- For 3072-dim vectors, IVFFlat is the option but requires training
+-- data (rows). The notes table is typically small enough that a
+-- sequential scan is fast. If needed, create after data exists:
+--   CREATE INDEX idx_notes_embedding ON notes
+--       USING ivfflat (embedding vector_cosine_ops) WITH (lists = 100);