relational type operation on key value storage

Posted by wayne on Stack Overflow See other posts from Stack Overflow or by wayne
Published on 2012-09-04T09:36:40Z Indexed on 2012/09/04 9:37 UTC
Read the original article Hit count: 289

Filed under:

mysql

|

redis

|

key-value

|

relational

in my objects table i have

id | type | parent | order | created

and then in my data table i have

object_id | key | value

i want to get object of type 'x' where key 'y' === 'z' in the most optimal way possible.

ie. get user where slug === 'jonny'

i'm currently doing it with joins, because i'm doing this in mysql as a quick test. but i'll be moving to redis or a similar key/value storage system so obviously that won't work.

© Stack Overflow or respective owner

Related posts about mysql

How to remove MySQL completely with config and library files on ubuntu 12.04 gnome 3.0

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I tried everything till now: sudo apt-get remove mysql-server mysql-client mysql-common sudo apt-get purge mysql-server mysql-client mysql-common sudo apt-get autoremove and even more commands... But whenever I am trying to locate mysql. I get a no. of files related to mysql command: shell>>… >>> More
mysql: Cannot load from mysql.proc. The table is probably corrupted

as seen on Server Fault - Search for 'Server Fault'
Mysql was started: /usr/bin/mysqld_safe --datadir=/srv/mysql/myDB --log-error=/srv/mysql/logs/mysqld-myDB.log --pid-file=/srv/mysql/pids/mysqld-myDB.pid --user=mysql --socket=/srv/mysql/sockets/mysql-myDB.sock --port=3700 but when I'm trying to do something: ERROR 1548 (HY000) at line 1: Cannot… >>> More
Why is there a /etc/init.d/mysql file on this Slackware machine? How could it have gotten there?

as seen on Server Fault - Search for 'Server Fault'
A client of my IT-consulting service owns a web-development shop. He's been having problems with a Slackware 12.0 server running MySQL 5.0.67. The machine was set up by the client's sysadmin, who left on bad terms. My client no longer employs a sysadmin. As far as I can tell, the only copy of MySQL… >>> More
mysql: Bind on unix socket: Permission denied

as seen on Server Fault - Search for 'Server Fault'
Can't start mysql with: sudo /usr/bin/mysqld_safe --datadir=/srv/mysql/myDB --log-error=/srv/mysql/logs/mysqld-myDB.log --pid-file=/srv/mysql/pids/mysqld-myDB.pid --user=mysql --socket=/srv/mysql/sockets/mysql-myDB.sock --port=3700 120222 13:40:48 mysqld_safe Starting mysqld daemon with databases… >>> More
MySQL – Learning MySQL Online in 6 Hours – MySQL Fundamentals in 320 Minutes

as seen on SQL Authority - Search for 'SQL Authority'
MySQL is one of the most popular database language and I have been recently working with it a lot. Data have no barrier and every database have their own place. I have been working with MySQL for quite a while and just like SQL Server, I often find lots of people asking me if I have a tutorial which… >>> More

Related posts about redis

Trouble using Upstart to launch Redis as redis user

as seen on Super User - Search for 'Super User'
I'm trying to launch redis-server as a user (called redis) via Upstart. My /etc/init/redis-server.conf looks like this: description "redis server" start on runlevel [23] stop on shutdown exec sudo -u redis /usr/local/bin/redis-server /var/lib/redis/redis.conf Looks good, right? I start redis-server… >>> More
Booting the server redis no errors

as seen on Server Fault - Search for 'Server Fault'
The redis but usually begins with the following errors: tyler @ tyler-vortex: ~ / pens $. / src / redis-server [3690] Dec 01 10:56:05 # Warning: the specified config file, using the default config. In order to Specify a config file use 'redis-server / path / to / redis.conf' [3690] Dec 01 10:56:05… >>> More
Redis 2.0.3 would not let go of deleted appendonly.aof file after BGREWRITEAOF

as seen on Server Fault - Search for 'Server Fault'
Ubuntu 10.04.2, Redis 2.0.3 (more details at the end of the question). My AOF file for Redis is getting too large, to the point where it soon would threaten to take whole free disk space on my small-HDD VPS box: $ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda … >>> More
Troubles installing/starting Redis via Resque

as seen on Server Fault - Search for 'Server Fault'
Trying to complete instructions for Resque/Redis installation here: https://github.com/defunkt/resque/blob/master/README.markdown Am stuck at where I'm trying to start up Redis via Resque at the following command: Craig:/usr/local/src/resque$ rake redis:start (in /usr/local/src/resque) Detach… >>> More
Resque Runtime Error at /workers: wrong number of arguments for 'exists' command

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having a runtime errror when i'm looking at the "workers" tab on resque-web (localhost). Everything else works. Edit: when this error occurs, i also have some (3 or 4) unknown workers 'not working'. I think they are responsible for the error but i don't understand how they got here Can you help… >>> More