代碼如下：
function map() {
emit(this.shopEntity, this.realPayMoney);
}
function reduce(key, values) {
return {'v':values};
}
db.order_info.mapReduce(
map,
reduce,
{
query:{orderStatus:NumberInt(4), shopEntity:{$in:[5,8,12]}},
out:"order_test01"
}
)
結果是這樣的
{
"_id" : NumberLong(8),
"value" : {
"v" : [
"591.3",
"770.0",
]
}
}
{
"_id" : NumberLong(12),
"value" : {
"v" : [
{
"v" : [
"516.7",
"402.0",
"1197.4"
]
},
"477.7",
"417.0",
]
}
}
回傳的 v 中竟然出現了嵌套的情況，求解
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標籤：MongoDB