adjacent_bigintspan_bigint adjacent_bigintspanset_bigint adjacent_floatspan_float adjacent_floatspanset_float adjacent_intspan_int adjacent_intspanset_int adjacent_period_timestamp adjacent_periodset_timestamp adjacent_span_span adjacent_spanset_span adjacent_spanset_spanset contained_bigint_bigintset contained_bigint_bigintspan contained_bigint_bigintspanset contained_float_floatset contained_float_floatspan contained_float_floatspanset contained_int_intset contained_int_intspan contained_int_intspanset contained_set_set contained_span_span contained_span_spanset contained_spanset_span contained_spanset_spanset contained_text_textset contained_timestamp_period contained_timestamp_timestampset contains_bigintset_bigint contains_bigintspan_bigint contains_bigintspanset_bigint contains_floatset_float contains_floatspan_float contains_floatspanset_float contains_intset_int contains_intspan_int contains_intspanset_int contains_period_timestamp contains_periodset_timestamp contains_set_set contains_span_span contains_span_spanset contains_spanset_span contains_spanset_spanset contains_textset_text contains_timestampset_timestamp overlaps_set_set overlaps_span_span overlaps_spanset_span overlaps_spanset_spanset

contained_spanset_spanset() bool contained_spanset_spanset ( const SpanSet *  ss1, const SpanSet *  ss2  ) Return true if the first span set is contained by the second one. SQL Operator: <@