Adjacent_span_span Adjacent_span_value Adjacent_value_span Contained_set_set Contained_span_span Contained_value_set Contained_value_span Contains_set_set Contains_set_value Contains_span_span Contains_span_value Overlaps_set_set Overlaps_span_span

Contained_span_span() PGDLLEXPORT Datum Contained_span_span ( PG_FUNCTION_ARGS  ) Return true if the first span is contained by the second one. SQL Function: span_contained() SQL Operator: <@