Merge pull request #209 from getAlby/fix/index-events

feat: new index for latest event by app_id

migrations/202401092201_add_events_id_index.go

@@ -0,0 +1,17 @@
+package migrations
+
+import (
+	"github.com/go-gormigrate/gormigrate/v2"
+	"gorm.io/gorm"
+)
+
+// Create a composite index to improve performance of finding the latest nostr event for an app
+var _202401092201_add_events_id_index = &gormigrate.Migration{
+	ID: "202401092201_add_events_id_index",
+	Migrate: func(tx *gorm.DB) error {
+		return tx.Exec("CREATE INDEX idx_nostr_events_app_id_and_id ON nostr_events(app_id, id)").Error
+	},
+	Rollback: func(tx *gorm.DB) error {
+		return nil
+	},
+}

migrations/migrate.go

@@ -11,7 +11,8 @@ func Migrate(db *gorm.DB) error {
 		_202309271616_initial_migration,
 		_202309271617_fix_preimage_null,
 		_202309271618_add_payment_sum_index,
+		_202401092201_add_events_id_index,
 	})
 
 	return m.Migrate()
-}
+}