QUERY: COPY aggtest FROM '_OBJWD_/data/agg.data';QUERY: COPY onek FROM '_OBJWD_/data/onek.data';QUERY: COPY onek TO '_OBJWD_/results/onek.data';QUERY: DELETE FROM onek;QUERY: COPY onek FROM '_OBJWD_/results/onek.data';QUERY: COPY tenk1 FROM '_OBJWD_/data/tenk.data';QUERY: COPY slow_emp4000 FROM '_OBJWD_/data/rect.data';QUERY: COPY person FROM '_OBJWD_/data/person.data';QUERY: COPY emp FROM '_OBJWD_/data/emp.data';QUERY: COPY student FROM '_OBJWD_/data/student.data';QUERY: COPY stud_emp FROM '_OBJWD_/data/stud_emp.data';QUERY: COPY road FROM '_OBJWD_/data/streets.data';QUERY: COPY real_city FROM '_OBJWD_/data/real_city.data';QUERY: COPY hash_i4_heap FROM '_OBJWD_/data/hash.data';QUERY: COPY hash_name_heap FROM '_OBJWD_/data/hash.data';QUERY: COPY hash_txt_heap FROM '_OBJWD_/data/hash.data';QUERY: COPY hash_f8_heap FROM '_OBJWD_/data/hash.data';QUERY: COPY bt_i4_heap FROM '_OBJWD_/data/desc.data';QUERY: COPY bt_name_heap FROM '_OBJWD_/data/hash.data';QUERY: COPY bt_txt_heap FROM '_OBJWD_/data/desc.data';QUERY: COPY bt_f8_heap FROM '_OBJWD_/data/hash.data';