我有JSON,如下所示
{
"_type": "Usage",
"bids": [
{
"bid": 0.015,
"clicks": 13,
"endTime": "2016-06-01T00:31:39.000Z",
},
{
"bid": 0.023,
"clicks": 1731,
"endTime": "2016-06-01T03:08:30.000Z",
},
{
"bid": 0.025,
"clicks": 604,
"endTime": null,
}
],
"campaignId": 2229,
}
我想在出价中增加点击次数和出价但是当我在查询下方运行时,其结果为空 ARRAY_SUM((出价[*
]。点击次数)*(出价[*
] .bid))
select campaignId,ARRAY_MAX(bids[*].startTime) date,
ARRAY_SUM(bids[*].clicks) clicks,ARRAY_SUM((bids[*].clicks)*(bids[*].bid)) total
from Default where _type="DailyCampaignUsage";
但总计为空
答案 0 :(得分:2)
您希望将数组中每个元素的单个点击次数/出价值相乘。请注意,出价[]。点击会生成一系列点击值,''是基本/标量数据类型的乘法运算符。所以,试试这个:
SELECT campaignId,ARRAY_MAX(bids[*].endTime) date,
ARRAY_SUM(bids[*].clicks) clicks,
ARRAY_SUM(ARRAY x.clicks * x.bid FOR x IN bids END) total
FROM default
WHERE _type="DailyCampaignUsage";
-prasad