我目前正在使用第一个运算符。是否有任何操作员可以获取所有文档?
q = col.aggregate([{'$group' : {'_id' :
{'DESIGN':"$CURRENT_DESIGNATION","count":{"$sum":1}},
"NAME":{"$first":"$NAME"},
"CURRENT_LOCATION":{"$first":"$CURRENT_LOCATION"},
"CURRENT_DESIGNATION":
{"$first":"$CURRENT_DESIGNATION"},
"PROFILE_URL":{"$first":"$PROFILE_URL"}}}])
for i in q:
pprint(i)
使用$push
聚合管道运算符。
https://docs.mongodb.com/manual/reference/operator/aggregation/push/index.html