Hive备份语句以及分区插入

insert overwrite table backup.epg_wiki_info

select * from tvlog.epg_wiki_info;

insert overwrite table backup.wiki

select * from tvlog.wiki;

insert overwrite table backup.device_info

select * from tvlog.device_info;

set hive.exec.dynamic.partition=true;

set hive.exec.dynamic.partition.mode=nonstrict;

set hive.exec.max.dynamic.partitions.pernode=1000;

insert overwrite table backup.tvlog_tcl

partition (year, month, day)

select * from tvlog.tvlog_tcl;

select 

 count(userid) as total, 

 dt,

 channelname

from tvlog.tvlog_tcl

where channelname = $P{channelname}

and (unix_timestamp(endtime) - unix_timestamp(starttime)) > $P{arrivaltime}

and year = year($P{date})

and month = month($P{date})

and day = day($P{date})