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Re: Typed hstore proposal

From: Benedikt Grundmann <bgrundmann(at)janestreet(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Johann 'Myrkraverk' Oskarsson <johann(at)2ndquadrant(dot)com>,PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Typed hstore proposal
Date: 2011-12-22 15:51:48
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On 22/12/11 10:44, Tom Lane wrote:
> "Johann 'Myrkraverk' Oskarsson" <johann(at)2ndquadrant(dot)com> writes:
> > I mean to create a typed hstore, called tstore for now.
> Um ... what is the point of this, exactly?  From what I've seen, most
> applications for hstore are pretty happy with the fact that hstore is
> only weakly typed, and if an entry *is* an integer, or a float, or
> whatever else, it's not hard to cast to and from text as needed.

More over it is also easy with the current hstore to add constraints like this:

  "contracts_is_an_integer" CHECK ((tags -> 'contracts'::text) ~ '^[0-9]+$'::text)

to ensure that it actually is.

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