after_period_timestamp after_periodset_timestamp after_timestamp_period after_timestamp_periodset after_timestamp_timestampset after_timestampset_timestamptz before_period_timestamp before_periodset_timestamp before_timestamp_period before_timestamp_periodset before_timestamp_timestampset before_timestampset_timestamp left_bigint_bigintset left_bigint_bigintspan left_bigint_bigintspanset left_bigintset_bigint left_bigintspan_bigint left_bigintspanset_bigint left_float_floatset left_float_floatspan left_float_floatspanset left_floatset_float left_floatspan_float left_floatspanset_float left_int_intset left_int_intspan left_int_intspanset left_intset_int left_intspan_int left_intspanset_int left_set_set left_span_span left_span_spanset left_spanset_span left_spanset_spanset left_text_textset left_textset_text overafter_period_timestamp overafter_periodset_timestamp overafter_timestamp_period overafter_timestamp_periodset overafter_timestamp_timestampset overafter_timestampset_timestamp overbefore_period_timestamp overbefore_periodset_timestamp overbefore_timestamp_period overbefore_timestamp_periodset overbefore_timestamp_timestampset overbefore_timestampset_timestamp overleft_bigint_bigintset overleft_bigint_bigintspan overleft_bigint_bigintspanset overleft_bigintset_bigint overleft_bigintspan_bigint overleft_bigintspanset_bigint overleft_float_floatset overleft_float_floatspan overleft_float_floatspanset overleft_floatset_float overleft_floatspan_float overleft_floatspanset_float overleft_int_intset overleft_int_intspan overleft_int_intspanset overleft_intset_int overleft_intspan_int overleft_intspanset_int overleft_set_set overleft_span_span overleft_span_spanset overleft_spanset_span overleft_spanset_spanset overleft_text_textset overleft_textset_text overright_bigint_bigintset overright_bigint_bigintspan overright_bigint_bigintspanset overright_bigintset_bigint overright_bigintspanset_bigint overright_float_floatset overright_float_floatspan overright_float_floatspanset overright_floatset_float overright_floatspan_float overright_floatspanset_float overright_int_intset overright_int_intspan overright_int_intspanset overright_intset_int overright_intspan_int overright_intspanset_int overright_set_set overright_span_span overright_span_spanset overright_spanset_span overright_spanset_spanset overright_textset_text right_bigint_bigintset right_bigint_bigintspan right_bigint_bigintspanset right_bigintset_bigint right_bigintspan_bigint right_bigintspanset_bigint right_float_floatset right_float_floatspan right_float_floatspanset right_floatset_float right_floatspan_float right_floatspanset_float right_int_intset right_int_intspan right_int_intspanset right_intset_int right_intspan_int right_intspanset_int right_set_set right_span_span right_span_spanset right_spanset_span right_spanset_spanset right_text_textset right_textset_text

left_span_span() bool left_span_span ( const Span *  s1, const Span *  s2  ) Return true if the first span is strictly to the left of the second one. SQL Operator: <<