[libgda: 10/17] DB: Fixing error message in GdaDbTable

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 9775333eab41dabf43a929f72a3c782525151695
Author: Pavlo Solntsev <p sun fun gmail com>
Date:   Thu Mar 21 08:36:12 2019 -0500

    DB: Fixing error message in GdaDbTable

 libgda/gda-db-table.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/libgda/gda-db-table.c b/libgda/gda-db-table.c
index 27026cd87..769728b9c 100644
--- a/libgda/gda-db-table.c
+++ b/libgda/gda-db-table.c
@@ -917,7 +917,8 @@ gda_db_table_add_column (GdaDbTable *self,
 
   if (!op)
     {
-      g_warning("ServerOperation is NULL\n");
+      g_set_error (error, GDA_DB_TABLE_ERROR, GDA_DB_TABLE_SERVER_OPERATION,
+                   _("ServerOperation is NULL"));
       goto on_error;
     }