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Update MongoDB_聚合.md

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heibaiying 2019-07-31 15:06:16 +08:00 committed by GitHub
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@ -339,11 +339,11 @@ db.employees.aggregate([
"emp_no" : 10001,
........
"emp_title" : [
{
"_id" : ObjectId("5d4011728ba16934ccce99a5"),
"emp_no" : 10001,
"title" : "Senior Engineer"
}
{
"_id" : ObjectId("5d4011728ba16934ccce99a5"),
"emp_no" : 10001,
"title" : "Senior Engineer"
}
]
},
@ -424,7 +424,7 @@ db.employees.aggregate([
"_id" : ObjectId("5d4011728ba16934ccce99a6"),
"emp_no" : 10002,
"title" : "Staff"
},
},
{
"_id" : ObjectId("5d4011728ba16934ccce99a7"),
"emp_no" : 10003,