Left_set_set Left_set_value Left_span_span Left_span_value Left_value_set Left_value_span Overleft_set_set Overleft_set_value Overleft_span_span Overleft_span_value Overleft_value_set Overleft_value_span Overright_set_set Overright_set_value Overright_span_span Overright_span_value Overright_value_set Overright_value_span Right_set_set Right_set_value Right_span_span Right_span_value Right_value_set Right_value_span

Left_set_set() PGDLLEXPORT Datum Left_set_set ( PG_FUNCTION_ARGS  ) Return true if the first timestamp set is strictly left the second one. SQL Function: time_left() SQL Operator: <<#