[libgda] ddl-test: fixed memory leak on postgres creator test

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 3bcb7b7dc9931d34032b2e53b7723ca3075a9c8c
Author: Daniel Espinosa Ortiz <esodan gmail com>
Date:   Mon Dec 17 09:59:11 2018 -0600

    ddl-test: fixed memory leak on postgres creator test

 tests/ddl/check-ddl-creator-postgresql.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
---
diff --git a/tests/ddl/check-ddl-creator-postgresql.c b/tests/ddl/check-ddl-creator-postgresql.c
index dd6bb7084..57ccadb0b 100644
--- a/tests/ddl/check-ddl-creator-postgresql.c
+++ b/tests/ddl/check-ddl-creator-postgresql.c
@@ -87,6 +87,14 @@ static void create_users_table (CheckDdlObject *self) {
 
   gda_ddl_creator_append_table (self->creator, table);
   res = gda_ddl_table_create (table, self->cnc, TRUE, &error);
+
+  g_object_unref (table);
+  g_object_unref (column_id);
+  g_object_unref (column_name);
+  g_object_unref (column_ctime);
+  g_object_unref (column_ts);
+  g_object_unref (column_state);
+
   if (!res) {
     g_warning ("Error Creating table: %s", error->message);
   }
@@ -147,6 +155,14 @@ static void create_companies_table (CheckDdlObject *self) {
 
   gda_ddl_creator_append_table (self->creator, table);
   res = gda_ddl_table_create (table, self->cnc, TRUE, &error);
+
+  g_object_unref (table);
+  g_object_unref (column_id);
+  g_object_unref (column_name);
+  g_object_unref (column_ctime);
+  g_object_unref (column_ts);
+  g_object_unref (column_state);
+
   if (!res) {
     g_warning ("Error Creating table: %s", error->message);
   }
@@ -208,6 +224,14 @@ static void create_countries_table (CheckDdlObject *self) {
 
   gda_ddl_creator_append_table (self->creator, table);
   res = gda_ddl_table_create (table, self->cnc, TRUE, &error);
+
+  g_object_unref (table);
+  g_object_unref (column_id);
+  g_object_unref (column_name);
+  g_object_unref (column_ctime);
+  g_object_unref (column_ts);
+  g_object_unref (column_state);
+
   if (!res) {
     g_warning ("Error Creating table: %s", error->message);
   }