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A comment on Rapid schema development with PostgreSQL. Parent comment

Re:Rapid schema development with PostgreSQL by simonw on Friday October 18, 2013 @06:41PM (#6574465)
When reading data back, it's more efficient to query a single table than to have to join against an extra attributes table

See https://news.ycombinator.com/item?id=6574269 for anecdotal evidence.

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Re:Rapid schema development with PostgreSQL by moron4hire on Saturday October 19, 2013 @12:33AM (#6575345)
there are so many variables in that anecdote that there is nothing that can be gleaned from it.
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Re:Rapid schema development with PostgreSQL by Herbert2 on Saturday October 19, 2013 @05:07AM (#6575850)
Alright, these were approximately the fields that were Postgre-fied.

CREATE TABLE event ( "references" text[], (was 2 tables, references and reference_on_event) "entities" text[], (ditto) "actors" text[], (ditto) "targets" text[], (ditto) "payload" json, (EAV) )

Gin index on all the text arrays. There are about 150k events saved per day and PostgreSQL is running on the same kinds of hardware as SQL Server was. The application is quite read heavy.

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