From ee23a7a7d9dc6e2653432870e9de9a8984119b05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20=C5=A0tibran=C3=BD?= <pstibrany@gmail.com>
Date: Wed, 12 Mar 2025 11:02:00 +0100
Subject: [PATCH] Disable dashboard and folder synchronization when running on
 Spanner. (#102007)

---
 pkg/services/folder/folderimpl/folder.go | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/pkg/services/folder/folderimpl/folder.go b/pkg/services/folder/folderimpl/folder.go
index 414076ee924..3996270a885 100644
--- a/pkg/services/folder/folderimpl/folder.go
+++ b/pkg/services/folder/folderimpl/folder.go
@@ -154,6 +154,7 @@ func (s *Service) DBMigration(db db.DB) {
 	ctx := context.Background()
 	err := db.WithDbSession(ctx, func(sess *sqlstore.DBSession) error {
 		var err error
+		deleteOldFolders := true
 		if db.GetDialect().DriverName() == migrator.SQLite {
 			// covered by UQE_folder_org_id_uid
 			_, err = sess.Exec(`
@@ -168,6 +169,10 @@ func (s *Service) DBMigration(db db.DB) {
 				SELECT uid, org_id, title, created, updated FROM dashboard WHERE is_folder = true
 				ON CONFLICT(uid, org_id) DO UPDATE SET title=excluded.title, updated=excluded.updated
 			`)
+		} else if db.GetDialect().DriverName() == migrator.Spanner {
+			// We may eventually make this migration work with Spanner, but for now don't do anything.
+			// We intend to store dashboards and folders only in unified storage when using spanner.
+			deleteOldFolders = false
 		} else {
 			// covered by UQE_folder_org_id_uid
 			_, err = sess.Exec(`
@@ -180,11 +185,13 @@ func (s *Service) DBMigration(db db.DB) {
 			return err
 		}
 
-		// covered by UQE_folder_org_id_uid
-		_, err = sess.Exec(`
+		if deleteOldFolders {
+			// covered by UQE_folder_org_id_uid
+			_, err = sess.Exec(`
 			DELETE FROM folder WHERE NOT EXISTS
 				(SELECT 1 FROM dashboard WHERE dashboard.uid = folder.uid AND dashboard.org_id = folder.org_id AND dashboard.is_folder = true)
 		`)
+		}
 		return err
 	})
 	if err != nil {