2009/7/20 Bas Driessen <[email protected]> > On Sun, 2009-07-19 at 13:31 +0200, Vivien Malerba wrote: > > > > 2009/7/19 Bas Driessen <[email protected]> > > Hello, > > Question regarding partial meta store update. I found that the following to > update a single table does not appear to work: > > * g_print ("\nPartial metastore update for table '%s'...\n", > TABLE_NAME);* > * GdaMetaContext mcontext = {"_tables", 1, NULL, NULL};* > * mcontext.column_names = g_new (gchar *, 1);* > * mcontext.column_names[0] = "table_name";* > * mcontext.column_values = g_new (GValue *, 1);* > * g_value_set_string ((mcontext.column_values[0] = gda_value_new > (G_TYPE_STRING)), TABLE_NAME);* > * if (!gda_connection_update_meta_store (connection, &mcontext, > &error))* > * return -1;* > > After this, my meta store is NOT updated. > > > This may depend on the actual value of TABLE_NAME, specifically if it is a > mix of upper and lower case, or if it's a reserved keyword. The proper way > is: > *tmp = gda_sql_identifier_quote (TABLE_NAME, cnc, NULL, TRUE, FALSE); // > or with the last argument being TRUE, see the doc* > *g_value_set_string ((mcontext.column_values[0] = gda_value_new > (G_TYPE_STRING)), tmp);* > *g_free (tmp);* > > Note that this is brand new (just been sorted out) and will require the > master or LIBGDA_4.0 branches up to date. > > > > Thanks Vivien, but this unfortunately is not still not working. Let me > explain my testing scenario and if I understand this the correct way. > > -1 I have a database with a table called "groups" > -2 I run the gda_connection_update_meta_store to update the meta store. > -3 I look into the meta store with sqlite3 and execute "select * from > _tables". I can see the "groups" table in that list. >
So far so good:) > > -4 I add a table called "parts" > -5 I run the code above (with your modification) where the TABLE_NAME is > set to "parts" (without quotes). > -6 I execute "select * from _tables" and I expect to see the "parts" entry, > but it is not there. > It should be there... > > -7 I execute the gda_connection_update_meta_store to do the full update. > -8 I execute "select * from _tables" and I expect to see the "parts" entry > and now it is there. > > My questions: > > -1 Is my understanding of how this mechanism should work correct? > Ye, it is. > > -2 Anything (obvious) that is not in the code above? > -3 I use "gda_meta_store_new_with_file" to open my (sqlite3) meta store > database. Is it possible that somehow it is mixing up the internal (memory) > database with the external one? > I don't think so, but I'd prefer to have some actual code to look at before I can say... If you send me a standlone program which shows the bug, I'll make the necessary corrections (either to Libgda or to your code). Vivien
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