rethinkdb

问题 If I wanted to count foobar.relationships.friend.count, how would I use map/reduce against this document structure so the count will equal 22. [ [0] { "rank" => nil, "profile_id" => 3, "20130913" => { "foobar" => { "relationships" => { "acquaintance" => { "count" => 0 }, "friend" => { "males_count" => 0, "ids" => [], "females_count" => 0, "count" => 10 } } } }, "20130912" => { "foobar" => { "relationships" => { "acquaintance" => { "count" => 0 }, "friend" => { "males_count" => 0, "ids" => [

问题 I have a table with users and their locations saved as r.point datatypes & a geo index set on them. I am trying to run a .getNearest() query, which returns all the users closest to the given user (say, Mr. X ). The results return all the users closest to Mr. X , but also include Mr. X . How do I filter all users except Mr. X ? What I've tried so far — In RethinkDB's Data Explorer (Plain ReQL commands) r.db('myDb').table('myTable').getNearest(r.point(-20, 39), {index: 'location'}).filter

问题 I'm having this exact problem: https://github.com/rethinkdb/rethinkdb/issues/6503 First time I connect, it console.logs 1 time. If I refresh it console.log 2 times. If I refresh again, it console logs 3 times. and so on.Keep adding one more console.log / run to each reload. The same with socket.emit. It keeps adding 1 extra on each reload. In the link above he describes how to fix it, with this code: options.socket.on('close', () => { conn.close({ noreplyWait: false }); }); I would love to

问题 I have 3 different pool of clients in 3 different geographical locations. I need configure Rethinkdb with 3 different clusters and replicate data between the (insert, update and deletes). I do not want to use shard, only replication. I didn't found in documentation if this is possible. I didn't found in documentation how to configure multi-cluster replication. Any help is appreciated. 回答1: I think that multi cluster is just same a single clusters with nodes in different data center First, you

问题 How do I get the size of a given rethinkdb database using Python? I want this because I'm developing a mutli-user graphical frontend to rethinkdb and want to be able to enforce a quota for each user's database. Something like below would be awesome: r.db('thedatabase').size().run() 50gb 回答1: RethinkDB doesn't have a built-in command for such operation. The easiest solution would be probably to spin up multiple RethinkDB instances on their own (limited) partition (using Docker would probably

问题 I have a josn named "update",and it has an embedded list "comments" like this: { id: "update/0", //comments contains elements with type:comment comments: [{ id:"comment/0" content:"old first level comment content..." children:[{ id:"comment/00", content:""old second level comment content...", children[...] } ] }] } Questions are: 1, How to replace "old first level comment content..." with "new first level comment content..." by ids "update/0" and "comment/0"? 2, How to replace "old second

问题 I am getting an issue while updating a nested object.sample data like this { "status":{ "draft":{ "status":"draft", "rating":4 }, "review":{ "status":"review", "rating":4 }, "publish":{ "status":"publish", "rating":4 } } } In the above object some times the draft/ review/ publish are empty objects and need to check the condition and update the rating in the object.I have tried like this but getting error. query: r.db('sample_db').table('table').filter({id:'xxxxxxx'}) .update({"draft": r.row(

问题 I found an answer for finding all documents in a table with missing fields in this SO thread RethinkDB - Find documents with missing field, however I want to filter according to a missing field AND a certain value in a different field. I want to return all documents that are missing field email and whose isCurrent: value is 1 . So, I want to return all current clients who are missing the email field, so that I can add the field. The documentation on rethink's site does not cover this case.

问题 In RethinkDB's data explorer, I'm running this query successfully using javascript: r.db('my_db').table('my_table').filter(function(row){return row('some_key').match(".sometext.")}) But when I'm running it correspondingly in python like this: r.db('my_db').table('my_table').filter(lambda row: row('some_key').match(".sometext.")) I'm getting the following error: TypeError: 'Var' object is not callable In [16]: rql = r.db('my_db').table('my_table').filter(lambda row: row('some_key').match("

问题 By the docs, it seems that in order to filter all users that are 30 years old OR 40 years old, I can do this (with python): r.table("users").filter((r.row["age"].eq(30)) | (r.row["age"].eq(40))).run(conn) Say I have a list based on input / request: [12, 14, 18, 88, 33 ...], how do I filter all the users that are in the age of one of the elements in the list above by iterating it (and not doing it hard coded)? 回答1: That's one way to do it valid_ages = [12, 14, 18, 88, 33] r.table("users")