Presto 将两列合并为一列答案

【问题标题】：Presto combining two columns and output as onePresto 将两列合并为一列
【发布时间】：2019-08-14 23:01:12
【问题描述】：

我正在尝试在 presto 中将两列组合在一起。

这是查询的一部分，必须以某种方式格式化。

SELECT 'Display' AS channel, 
        DBM.dated, 
        DBM.market, 
        DBM.impressions, 
        DBM.clicks, 
        sum(DBM.amount_spent_EUR)+sum(DBm.platform_fee) as DBM.amount_spent_EUR
FROM 
(

SELECT
DATE_FORMAT(DATE_PARSE(date,'%Y/%m/%d'),'%Y-%m-%d') AS dated, 
trim(SPLIT_PART(insertion_order,'|',3)) AS market, 
sum(cast(impressions as double)) as impressions, 
sum(cast(clicks as double)) as clicks, 
sum(CAST(media_cost_advertiser_currency AS DOUBLE)*1.15) AS amount_spent_EUR,
sum(CAST(media_fee_1_adv_currency AS DOUBLE)*1.15) as platform_fee

FROM ralph_lauren_google_sheet_dbm_data_2  

WHERE dated <= {{days_ago 1}}

GROUP BY 1,2
)DBM

错误如下：

查询 20190814_125505_19433_rcrut 失败：第 1:144 行：无关输入 '。'期待 {, ',', 'EXCEPT', 'FROM', 'GROUP', 'HAVING', 'INTERSECT'、'LIMIT'、'ORDER'、'UNION'、'WHERE'}

错误是 dbm.amount_spent_eur。这个专栏必须像这样出来。我该如何解决这个问题？

【问题讨论】：

标签： presto

【解决方案1】：

在这种情况下，您可以使用双引号。

as "DBM.amount_spent_EUR"

【讨论】：