Changeset 0.22.8 (#150)

server/database/migrations/007_notes.sql

@@ -0,0 +1,75 @@
+-- ==========================================
+-- Chat Switchboard — 007 Notes & Links
+-- ==========================================
+-- Notes with full-text search, wikilink graph edges.
+-- ICD §6 (Notes)
+-- ==========================================
+
+-- =========================================
+-- NOTES
+-- =========================================
+
+CREATE TABLE IF NOT EXISTS notes (
+    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id             UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    title               VARCHAR(500) NOT NULL,
+    content             TEXT DEFAULT '',
+    folder_path         TEXT DEFAULT '/',
+    tags                TEXT[] DEFAULT '{}',
+    metadata            JSONB DEFAULT '{}',
+    source_channel_id   UUID REFERENCES channels(id) ON DELETE SET NULL,
+    source_message_id   UUID,
+    team_id             UUID REFERENCES teams(id) ON DELETE SET NULL,
+    search_vector       TSVECTOR,
+    embedding           VECTOR(3072),
+    created_at          TIMESTAMPTZ DEFAULT NOW(),
+    updated_at          TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_notes_user ON notes(user_id);
+CREATE INDEX IF NOT EXISTS idx_notes_search ON notes USING GIN(search_vector);
+CREATE INDEX IF NOT EXISTS idx_notes_folder ON notes(user_id, folder_path);
+CREATE INDEX IF NOT EXISTS idx_notes_tags ON notes USING GIN(tags);
+CREATE INDEX IF NOT EXISTS idx_notes_updated ON notes(user_id, updated_at DESC);
+CREATE INDEX IF NOT EXISTS idx_notes_team ON notes(team_id) WHERE team_id IS NOT NULL;
+CREATE INDEX IF NOT EXISTS idx_notes_source_msg ON notes(source_message_id)
+    WHERE source_message_id IS NOT NULL;
+
+CREATE OR REPLACE FUNCTION notes_search_update_fn()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.search_vector :=
+        setweight(to_tsvector('pg_catalog.english', COALESCE(NEW.title, '')), 'A') ||
+        setweight(to_tsvector('pg_catalog.english', COALESCE(NEW.content, '')), 'B');
+    NEW.updated_at := NOW();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+DROP TRIGGER IF EXISTS notes_search_update ON notes;
+CREATE TRIGGER notes_search_update
+    BEFORE INSERT OR UPDATE OF title, content ON notes
+    FOR EACH ROW EXECUTE FUNCTION notes_search_update_fn();
+
+
+-- =========================================
+-- NOTE LINKS (v0.17.3 — wikilink graph)
+-- =========================================
+
+CREATE TABLE IF NOT EXISTS note_links (
+    source_note_id  UUID NOT NULL REFERENCES notes(id) ON DELETE CASCADE,
+    target_note_id  UUID REFERENCES notes(id) ON DELETE CASCADE,
+    target_title    TEXT NOT NULL,
+    display_text    TEXT,
+    is_transclusion BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at      TIMESTAMPTZ DEFAULT now(),
+    PRIMARY KEY (source_note_id, target_title)
+);
+
+CREATE INDEX IF NOT EXISTS idx_note_links_target ON note_links(target_note_id)
+    WHERE target_note_id IS NOT NULL;
+
+COMMENT ON TABLE note_links IS 'Directed links between notes, extracted from [[wikilink]] syntax on save';
+COMMENT ON COLUMN note_links.target_note_id IS 'NULL for unresolved links (target note does not exist yet)';
+COMMENT ON COLUMN note_links.target_title IS 'Raw [[title]] text — preserved for re-resolution after renames';
+COMMENT ON COLUMN note_links.is_transclusion IS 'true for ![[embed]] syntax, false for regular [[link]]';