我有一个调度程序在我的服务器上运行,并生成一个列表的药物没有签署每天,这个问题有时会发生,而解决这个问题,我想创建一个脚本检查和删除这些重复的项目生成.感谢您的帮助.
此处为生成的一些样本日期:我想检查匹配字段[药物、时间、日期],并仅返回1份文件,然后删除所有重复项。
[
{
"_id": ObjectId("6375ea026a0b4e0015d80f77"),
"med": ObjectId("610845e7f5b0e00017754d50"),
"Time": "8:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
{
"_id": ObjectId("6375ea026a0b4e0015d80fd4"),
"med": ObjectId("61f988e82cf5760018113cee"),
"Time": "7:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
{
"_id": ObjectId("6375ea026a0b4e0015d80fdd"),
"med": ObjectId("62d1c6e93603ed00177812ee"),
"Time": "6:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
{
"_id": ObjectId("6375ea02304a870015dfa2ec"),
"med": ObjectId("610845e7f5b0e00017754d50"),
"Time": "8:00am",
"Date": "2022-11-16T08:00:00.005+0000"
},
{
"_id": ObjectId("6375ea02304a870015dfa349"),
"med": ObjectId("61f988e82cf5760018113cee"),
"Time": "7:00am",
"Date": "2022-11-16T08:00:00.005+0000"
},
{
"_id": ObjectId("6375ea02304a870015dfa352"),
"med": ObjectId("62d1c6e93603ed00177812ee"),
"Time": "6:00am",
"Date": "2022-11-16T08:00:00.005+0000"
}
]
预期输出:(注意:时间和日期不同)
[
{
"med": ObjectId("610845e7f5b0e00017754d50"),
"Time": "8:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
{
"med": ObjectId("61f988e82cf5760018113cee"),
"Time": "7:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
{
"med": ObjectId("62d1c6e93603ed00177812ee"),
"Time": "6:00am",
"Date": "2022-11-16T08:00:00.008+0000"
},
]
这里MongodbPlayground显示结果-〉Mongodb Playground
1条答案
按热度按时间ryevplcw1#
希望这个回答对大家有帮助
注意:-您的日期在每个对象中并不相同,因此您的预期输出可能是错误的
我已经附上了代码为. https://mongoplayground.net/p/hYrgPd7od02的Playground网址