Merge branch 'pgfts' into 'main'

Upgrade Nostrify to v0.20.0, enable Postgres FTS

See merge request soapbox-pub/ditto!269

src/db/migrations/020_pgfts.ts

@@ -0,0 +1,19 @@
+import { Kysely, sql } from 'kysely';
+
+import { Conf } from '@/config.ts';
+
+export async function up(db: Kysely<any>): Promise<void> {
+  if (['postgres:', 'postgresql:'].includes(Conf.databaseUrl.protocol!)) {
+    await db.schema.createTable('nostr_pgfts')
+      .ifNotExists()
+      .addColumn('event_id', 'text', (c) => c.primaryKey().references('nostr_events.id').onDelete('cascade'))
+      .addColumn('search_vec', sql`tsvector`, (c) => c.notNull())
+      .execute();
+  }
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  if (['postgres:', 'postgresql:'].includes(Conf.databaseUrl.protocol!)) {
+    await db.schema.dropTable('nostr_pgfts').ifExists().execute();
+  }
+}

src/storages/EventsDB.ts

@@ -42,8 +42,17 @@ class EventsDB implements NStore {
   };
 
   constructor(private kysely: Kysely<DittoTables>) {
+    let fts: 'sqlite' | 'postgres' | undefined;
+
+    if (Conf.databaseUrl.protocol === 'sqlite:') {
+      fts = 'sqlite';
+    }
+    if (['postgres:', 'postgresql:'].includes(Conf.databaseUrl.protocol!)) {
+      fts = 'postgres';
+    }
+
     this.store = new NDatabase(kysely, {
-      fts5: Conf.databaseUrl.protocol === 'sqlite:',
+      fts,
       indexTags: EventsDB.indexTags,
       searchText: EventsDB.searchText,
     });