I have a sorted set, SortedSet1 = "token"=>"score"

I have a list, List1 = "token"=>"username"

Now, I want to have a record with JSON string value like-

e.g> "token"=>"{name:username, score: score}"

so that I can broadcast a leaderboard.

How to JOIN these two sets ? Or is there any chance to have JOIN of two lists or two sets ?

I have a sorted set, SortedSet1 = "token"=>"score"

I have a list, List1 = "token"=>"username"

Now, I want to have a record with JSON string value like-

e.g> "token"=>"{name:username, score: score}"

so that I can broadcast a leaderboard.

How to JOIN these two sets ? Or is there any chance to have JOIN of two lists or two sets ?

• javascript
• node.js
• redis

Share Improve this question Follow asked May 9, 2013 at 4:44 PranavPranav 2,17255 gold badges2727 silver badges3535 bronze badges 2

• Or anything like merging of lists on same keys ? – Pranav Commented May 9, 2013 at 4:47
• where does name e into picture and also List1 look like a hash rather then list – Viren Commented May 9, 2013 at 6:13

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2 Answers 2

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redis is simply a key/value store. you cannot do something like sql-joins. you need to do that by yourself (use underscore.js or lodash for merging).

there is also something that is called LUA-scripting in redis. maybe that will work for you, but i have never worked with it, so i probably cannot help you there: http://redis.io/mands/eval

Here is my approach to doing Joins in Redis. https://www.reddit./r/redis/ments/5iz0gi/joins_in_redis/ The concept is to use sorted sets as indexes, then extracting and doing intersections on the scores.