Sender: Michal Nazarewicz <mpn@google.com>
From: Michal Nazarewicz <mina86@mina86.com>
To: David Bremner <david@tethera.net>, Jani Nikula <jani@nikula.org>,
	notmuch@notmuchmail.org
Subject: Re: [PATCH v3 6/9] lib: add date range query support
In-Reply-To: <878vce5cip.fsf@zancas.localnet>
Organization: http://mina86.com/
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	<xa1tsjamdvj6.fsf@mina86.com> <878vce5cip.fsf@zancas.localnet>
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Date: Mon, 17 Sep 2012 17:03:59 +0200
Message-ID: <xa1tipbczo68.fsf@mina86.com>
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> Michal Nazarewicz <mina86@mina86.com> writes:
>> IMO this is totally unintuitive and not how the range should work.
>> date:foo..bar should return messages whose date >=3D foo and < bar.  So
>> for instance date:november..yesterday should return messages whose date
>> is > 2012/11/01 00:00:00 and < 2012/09/12 00:00:00.  So to get
>> yesterdays messages one would do: date:yesterday..today.

On Thu, Sep 13 2012, David Bremner wrote:
> I don't find ranges being half-open by default to be very
> intuitive. Perhaps I don't program in python enough.

Perhaps C than: =E2=80=9Cfor (i =3D 0; i < 10; ++i)=E2=80=9D is the standar=
d idiom and the
end range is open.

Let's take a look at:

	date:2012/01/01..2012/01/01 + 1 day

in my opinion, that should give results from the first of January only,
since =E2=80=9C+ 1 day=E2=80=9D indicates in a way how long user want the p=
eriod to be.

I think it's also easier to pragmatically create ranges.  For instance,
let's say you want to create ranges for each week, you'd end up with:

	date:2012/01/02..2012/01/09	## 2012w01
	date:2012/01/09..2012/01/16	## 2012w02
	date:2012/01/16..2012/01/23	## 2012w03

Notice how the opening date of a range matches the closing date of
the previous date.

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.o. | Liege of Serenely Enlightened Majesty of      o' \,=3D./ `o
..o | Computer Science,  Micha=C5=82 =E2=80=9Cmina86=E2=80=9D Nazarewicz   =
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