Needs new dump (2017_07_06_dd477a33f0) with the table `obs_meta_geom_numer_timespan (PR)
Now use the new meta table obs_meta_geom_numer_timespan to filter
the geometries by geometries timespan and/or numerator timespan (which
is what we get when we use the obs_getavailabletimespans)
Needs new dump (2017_07_06_dd477a33f0) with the table `obs_meta_geom_numer_timespan (PR)
Now use the new meta table
obs_meta_geom_numer_timespanto filter the geometries by geometries timespan and/or numerator timespan (which is what we get when we use the obs_getavailabletimespans)