mongodb - Why does Mongoose automatically add s and lowercase when creating a collection?

I didn't find any relevant explanation in the document, please give me some advice, thank you. Mongoose uses t...

From [MongoDBdiscussion group] 2017-05-31 10:35:36 0  2  828

mongodb - Document update issues about mongoose

{Code...} I specified the timestamp when creating the schema, so updatedAt and createdAt will be automatically...

From [MongoDBdiscussion group] 2017-05-31 10:35:31 0  1  811

mongodb - Problems with operating Json type

There is a Document in mongodb: {code...} I put it in Greenplum for analysis and store it in Json type. {code....

From [MongoDBdiscussion group] 2017-05-31 10:35:19 0  2  686

java - MongoSocketReadTimeoutException: Timeout while receiving message

1. Recently I am using spring-boot and spring-data-mongo to operate mongodb. 2. I check the server log every m...

From [MongoDBdiscussion group] 2017-05-31 10:35:10 0  2  3829

java - Spring integrates mongodb and reports a duplicate primary key error based on the primary key _id query

1.mongoTemplate.findById(id, clazz, collectionName) queries based on the primary key _id and reports a nested ...

From [MongoDBdiscussion group] 2017-05-24 11:35:45 0  1  1199

node.js - How to delete array elements in mongoose

Now there are two schemas, one is students and the other is students’ employment information {code...} This wi...

From [MongoDBdiscussion group] 2017-05-24 11:35:44 0  1  1310

node.js - How to batch update a set of data in mongo and perform an insertion operation when the data in the array does not exist?

For example, I have a tag table in mongo. The data model is as follows {code...} Now I have an array of tag na...

From [MongoDBdiscussion group] 2017-05-24 11:35:41 0  2  1008

node.js - How mongoose filters and paging based on related tables

Problem background: In the following two schema {code...} columns, active needs to be configured and modified,...

From [MongoDBdiscussion group] 2017-05-24 11:35:40 0  1  1823

MongoDB3.2.10 geo query is too slow problem

Version Mongo3.2.10 Problem: Geo query under dense cluster returns the most recent 30 records, and 20,000+ rec...

From [MongoDBdiscussion group] 2017-05-24 11:31:32 0  2  937

mongodb - Mogodb uses text index, can't it use compound index?

Is it true that if a text index is used, a composite index cannot be used? Because I used the following query ...

From [MongoDBdiscussion group] 2017-05-24 11:31:30 0  1  846

mongodb - node.js how to make the remaining routing files not executed?

For example, if I want to perform a password change function, there is an old password and a new password. The...

From [MongoDBdiscussion group] 2017-05-24 11:31:27 0  2  697

Is there a limit to the size of a single document inserted into a MongoDB shard?

MongoDB sharding + replica cluster mode, default chunkSize: 64MB; when the size of a single document inserted ...

From [MongoDBdiscussion group] 2017-05-17 10:04:23 0  1  745

Is there a limit to the size of value in a MongoDB document?

I would like to ask the master, MongoDB inserts a document {key:value}. Is there any limit on the size of valu...

From [MongoDBdiscussion group] 2017-05-17 10:04:21 0  1  803

Mongodb database (newbie) problem

The requirement is: when the number of comments on an article changes, the cNumber in the article also changes...

From [MongoDBdiscussion group] 2017-05-17 10:04:09 0  1  716

nosql - MongoDB search time and number of matching conditions

Just like this, Baidu found a total of XXXXXX related results for you. It took XXXX milliseconds. How is this ...

From [MongoDBdiscussion group] 2017-05-17 10:04:08 0  1  1168