Fix tests on CI (2)

scnserver/db/dbtools/preprocessor.go

@@ -42,7 +42,7 @@ var regexAlias = rext.W(regexp.MustCompile("([A-Za-z_\\-0-9]+)\\s+AS\\s+([A-Za-z
 
 func NewDBPreprocessor(db sq.DB) (*DBPreprocessor, error) {
 
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
 	defer cancel()
 
 	obj := &DBPreprocessor{

scnserver/db/impl/primary/database.go

@@ -46,7 +46,7 @@ func NewPrimaryDatabase(cfg server.Config) (*Database, error) {
 
 	xdb, err := sqlx.Open("sqlite3", url)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to open sqlite3 database: %v", err)
 	}
 
 	if conf.SingleConn {
@@ -67,7 +67,7 @@ func NewPrimaryDatabase(cfg server.Config) (*Database, error) {
 
 	pp, err := dbtools.NewDBPreprocessor(qqdb)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to init db-preprocessor: %v", err)
 	}
 
 	qqdb.AddListener(pp)