我正在尝试编写一个简单的Hive查询:
select sum(case when pot_sls_q > 2* avg(pit_sls_q) then 1 else 0)/count(*) from prd_inv_fnd.item_pot_sls where dept_i=43 and class_i=3 where p_wk_end_d = 2014-06-28;
此处pit_sls_q
和pot_sls_q
都是Hive表格中的列,我想要pot_sls_q
比pit_sls_q
平均值高2倍的记录比例。但是我得到错误:
FAILED:SemanticException [错误10128]:第1:95行尚未支持UDAF'avg'的地方
为了愚弄我甚至尝试使用一些窗口功能:
select sum(case when pot_sls_q > 2* avg(pit_sls_q) over (partition by dept_i,class_i) then 1 else 0 end)/count(*) from prd_inv_fnd.item_pot_sls where dept_i=43 and class_i=3 and p_wk_end_d = '2014-06-28';
考虑到在相同条件下对数据进行过滤或分区的事实本质上是“相同的”数据,但是即使这样我也会得到错误:
失败:SemanticException [错误10002]:第1:36行无效的列引用'avg':(可能的列名是:p_wk_end_d,dept_i,class_i,item_i,pit_sls_q,pot_sls_q)
请建议正确的方法。
答案 0 :(得分:1)
您在AVG
内SUM
使用了AVG OVER ()
,但其他语法错误无效。
尝试分析select sum(case when pot_sls_q > 2 * avg_pit_sls_q then 1 else 0 end) / count(*)
from (
select t.*,
avg(pit_sls_q) over () avg_pit_sls_q
from prd_inv_fnd.item_pot_sls t
where dept_i = 43
and class_i = 3
and p_wk_end_d = '2014-06-28'
) t;
这个:
.nav-primary {
background: #CCC;
}
.nav-primary li {
list-style-type: none;
display: inline-block;
text-align: left;
font-size: 26px;
line-height: 0px;
vertical-align: middle; /* add this */
}
.nav-primary a {
display: inline-block;
padding: 32px 20px;
border: 1px dashed black;
/* border only used for display purpose of alignment*/
margin-right: -4px;
}
.nav-primary a:hover {
background: #FFF;
}
.menu {
width: 100%;
}
.menu-item {} .home a {
font-size: 0px;
}
.home a:after {
font-family: "dashicons";
content: " \f102";
font-size: 40px;
display: inline-block;
vertical-align: middle;
line-height: 0px;
}