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A comment on Goodbye global lock – MongoDB 2.0 vs 2.2. Parent comment

Re:Goodbye global lock – MongoDB 2.0 vs 2.2 by gcarre on Wednesday May 23, 2012 @05:29PM (#4015408)
Try ALTER TABLE ADD COLUMN on a 100 million rows table :).

Jeremy Zawodny from Craigslist explained why it helped them a lot for Craigslist archives database, where an alter table could take up to 24 hours: http://www.10gen.com/presentations/mongosf2011/craigslist

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Re:Goodbye global lock – MongoDB 2.0 vs 2.2 by bsg75 on Wednesday May 23, 2012 @05:40PM (#4015451)
OK, a MySQL problem. Not so much with PostgreSQL, where adding new columns noes not need to touch every table row.

NoSQL ~= NoMySQL

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