alpha_basetype alphanum_basetype alphanumset_type basetype_byvalue basetype_length basetype_settype basetype_spantype basetype_varlength ensure_basetype ensure_set_basetype ensure_set_type ensure_span_basetype ensure_span_type ensure_temporal_basetype ensure_temporal_type ensure_temptype_continuous ensure_tgeo_type ensure_time_type ensure_tnumber_basetype ensure_tnumber_settype ensure_tnumber_spansettype ensure_tnumber_spantype ensure_tnumber_type geo_basetype geoset_type int16 meosOper meosType number_basetype numset_type numspan_basetype numspan_type numspanset_type set_basetype set_span_type set_type settype_basetype span_basetype span_canon_basetype span_type spanset_type spansettype_spantype spantype_basetype spantype_spansettype spatial_basetype spatialset_type talpha_type temporal_type temptype_basetype temptype_continuous tgeo_type time_type timeset_type timespan_basetype timespan_type timespanset_type tnumber_basetype tnumber_settype tnumber_spansettype tnumber_spantype tnumber_type tspatial_basetype tspatial_type

span_canon_basetype() bool span_canon_basetype ( meosType  type ) Return true if the type is a canonical base type of a span type.