Narek Galstyan 62de29987b Add a notion of now for integer time columns
This commit implements functionality for users to give a custom
definition of now() for integer open dimension typed hypertables.
Such a now() function enables us to talk about intervals in the context
of hypertables with integer time columns. In order to simplify future
code. This commit defines a custom ts_interval type that unites the
usual postgres intervals and integer time dimension intervals under a
single composite type.

The commit also enables adding drop chunks policy on hypertables with
integer time dimensions if a custom now() function has been set.
2019-08-19 23:23:28 +04:00
..