[libgda] postgres provider: Avoid warning about nbfields.

[Murray Cumming <murrayc src gnome org>]

commit f0d5b6d1a8f1baa8dc4fe01621f04d3098af60e0
Author: Murray Cumming <murrayc murrayc com>
Date:   Sun Jul 22 13:28:43 2012 +0200

    postgres provider: Avoid warning about nbfields.

 providers/postgres/gda-postgres-ddl.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/providers/postgres/gda-postgres-ddl.c b/providers/postgres/gda-postgres-ddl.c
index 4917823..60f7382 100644
--- a/providers/postgres/gda-postgres-ddl.c
+++ b/providers/postgres/gda-postgres-ddl.c
@@ -265,7 +265,8 @@ gda_postgres_render_CREATE_TABLE (GdaServerProvider *provider, GdaConnection *cn
 		if (node) {
 			nrows = gda_server_operation_get_sequence_size (op, "/FKEY_S");
 			for (i = 0; i < nrows; i++) {
-				gint nbfields, j;
+				gint nbfields = 0;
+				gint j;
 
 				g_string_append (string, ", FOREIGN KEY (");
 				node = gda_server_operation_get_node_info (op, "/FKEY_S/%d/FKEY_FIELDS_A", i);