Calendar tables in PostgreSQL 9

Question

I am building an analytics database (I have a firm understanding of the data and the business objectives and only basic-to-moderate database skills).

I have come acr

Answer 1

In PostgreSQL, you can generate calendar tables of arbitrary length and granularity on the fly:

SELECT  CAST('2011-01-01' AS DATE) + (n || ' hour')::INTERVAL
FROM    generate_series(0, 23) n

This does not require recursion (as with the other systems) and is a preferred method to generate the volatile resultsets.