On Thu, 2008-11-20 at 15:26 +0100, Vivien Malerba wrote: > > > 2008/11/20 Johannes Schmid <[EMAIL PROTECTED]> > Hi! > > > In V3 the information was available using the GdaDict > object. In V4, > > the same information is available using the GdaMetaStruct > object. > > > > The only difference (appart from the API) is that in V3 all > the > > dictionary had to be in memory all the time even if not used > whereas > > in V4 only the requested part of the dictionary is loaded in > memory: > > the dictionary itself is represented by a GdaMetaStore > (which uses a > > DB) and an extract of the dictionary is represented as a > > GdaMetaStruct. > > > Could you give me some example then how to replace > gda_column_set_primary_key() in V4? I have checked the API of > GdaMetaStore and GdaMetaStruct but it's not obvious to me how > that > should work. > > gda_column_set_primary_key() only positionned a boolean to TRUE. If > what you need is to set a boolean and then later test that boolean, > you can use the g_object_set/get_data() as a replacement. > > If you are talking about gda_column_get_primary_key(), to obtain > information about a table's column, then you can have a look at the > example at http://library.gnome.org/devel/libgda/3.99/howto-meta1.html > > You can also have a look at the > set_column_properties_from_select_stmt() function in the > gda-data-select.c which determines some attributes for the columns of > a data model resulting of the execution of a SELECT statement.
I still don't understand. Is the "this field is a primary key" information something that is stored in the server (PostgreSQL in this case) or not? -- [EMAIL PROTECTED] www.murrayc.com www.openismus.com _______________________________________________ gnome-db-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gnome-db-list
