http://blog.charcoalphile.com/2009/02/09/postgresql-age-function-not-indexable/ On Databases, Recovery, Tech Sat, 31 Jul 2010 08:21:02 +0000 http://wordpress.org/?v=2.2.1 http://blog.charcoalphile.com/2009/02/09/postgresql-age-function-not-indexable/#comment-2481 Ivan Pavlov Wed, 11 Feb 2009 11:30:25 +0000 http://blog.charcoalphile.com/2009/02/09/postgresql-age-function-not-indexable/#comment-2481 The AGE(NOW(), my_timestamp) is not-deterministic - its value changes constantly. This is why it is impossible to create index on it. Your workaround this is quite clever. The AGE(NOW(), my_timestamp) is not-deterministic - its value changes constantly. This is why it is impossible to create index on it. Your workaround this is quite clever.

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