AnyRsetView: Refactor the columns_name method and update doc.
We drop the 'label_column_%s' % colidx pattern and add a clean column_label
method that might be overwritten by children class to alter the way default
columns headers are computed.
sync_schema_props_perms('CWSourceHostConfig', syncperms=False)
sql('INSERT INTO cw_source_relation(eid_from, eid_to) '
'SELECT e.eid,s.cw_eid FROM entities as e, cw_CWSource as s '
'WHERE s.cw_name=e.source AND NOT EXISTS(SELECT 1 FROM cw_source_relation WHERE eid_from=e.eid AND eid_to=s.cw_eid)')
commit()