[bdcravens]

Keep in mind that Postgresql wasn't as in vogue when Github was first built, and most or all of the NoSQL solutions you're thinking of didn't even exist. Up until 2 years ago, they were running Rails 2.3, and then is when they moved to Rails 3 (Rails 4 had been out a year at that point). I am very assured that Github is very careful about their technology choices and not quick to chase trends, given the importance of their application.

[brianwawok]

Really?

To me postgres and MySQL have been in a similar spot for 10 years at least. MySQL with a few more users but not massive.

[bdcravens]

Not by my recollection, and most ways of looking at trends seem to suggest the same: (unfortunately many don't go back that far, but let you see some trends)

http://www.indeed.com/jobtrends/q-postgresql-q-mysql.html

http://db-engines.com/en/ranking_trend

http://readwrite.com/2013/09/10/postresql-hits-93-new-levels...

[brianwawok]

I guess I forget that 70% of the web is PHP and 95% of PHP is MySQL, so I tend to not get a fair picture of life.

It appears that MySQL has held the 10x postgre spot for a long time, at least in search trends..