--! qt:dataset:srcpart
set hive.stats.column.autogather=true;
-- SORT_QUERY_RESULTS

show partitions srcpart;


create table if not exists nzhang_part8 like srcpart;
describe extended nzhang_part8;

set hive.merge.mapfiles=false;
set hive.exec.dynamic.partition=true;

explain extended
from srcpart
insert overwrite table nzhang_part8 partition (ds, hr) select key, value, ds, hr where ds <= '2008-04-08'
insert overwrite table nzhang_part8 partition(ds='2008-12-31', hr) select key, value, hr where ds > '2008-04-08';

from srcpart
insert overwrite table nzhang_part8 partition (ds, hr) select key, value, ds, hr where ds <= '2008-04-08'
insert overwrite table nzhang_part8 partition(ds='2008-12-31', hr) select key, value, hr where ds > '2008-04-08';

show partitions nzhang_part8;

select * from nzhang_part8 where ds is not null and hr is not null;