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From: Timur Safin via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: "'Oleg Babin'" <olegrok@tarantool.org>, <v.shpilevoy@tarantool.org>
Cc: <tarantool-patches@dev.tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH resend v2 10/11] lua, datetime: unixtime, timestamp setters in datetime.lua
Date: Sat, 31 Jul 2021 02:11:28 +0300
Message-ID: <045e01d78598$3ae26e00$b0a74a00$@tarantool.org> (raw)
In-Reply-To: <531544e8-0dd8-8d71-ccfc-4dae2805d498@tarantool.org>

Hello Oleg,

: From: Oleg Babin <olegrok@tarantool.org>
: Subject: Re: [Tarantool-patches] [PATCH resend v2 10/11] lua, datetime:
: unixtime, timestamp setters in datetime.lua
: 
: Thanks for your patch.
: 
: The comment is primarly the same as in previous patch.
: 
: Why do you use such slow approach and creates redundant tables and
: function (temporary metatable in fact)
: 
: to use it only once? Please fix it.

In previous emails I've shown how I'd deal with loop invariants. Should
avoid this redundant temp objects problem.

: 
: 
: Unixtime and timestamp is great but they loss precision. I think it
: should be possible
: 
: go get timestamp with nanoseconds precision since datetime has
: nanoseconds precision.

I'm not quite get it. Do you want to have nanoseconds exported via newindex?
For direct assignments? It's not useful because of available .nsec field.
Or may be you meant something else?

: 
: 
: Also still it's hard how to convert timestamp to datetime value back.

Timestamp is something secs.nsec, what looks complicated? I'm confused.
Could you please elaborate?

: 
: 
: On 28.07.2021 13:34, Timur Safin via Tarantool-patches wrote:
: > * implemented proper range checks for date attributes values;
: >
: > * created `.unixtime` attribute, which is alias to `.secs`,
: >    with corresponding setter/getter;
: >
: > * similarly to `unixtime`, created virtual `timestamp` attribute
: >    setter. Which is a convenient way to simultaneously assign
: >    unixtime (seconds since epoch) and nanoseconds
: >
: > Part of #5941

Thanks,
Timur


  reply	other threads:[~2021-07-30 23:11 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-28 10:34 [Tarantool-patches] [PATCH resend v2 00/11] Initial datetime support Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 01/11] build: add Christian Hansen c-dt to the build Timur Safin via Tarantool-patches
2021-07-29 23:40   ` Vladislav Shpilevoy via Tarantool-patches
2021-07-31  9:22     ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 02/11] lua: built-in module datetime Timur Safin via Tarantool-patches
2021-07-29 18:55   ` Oleg Babin via Tarantool-patches
2021-07-30 19:00     ` Timur Safin via Tarantool-patches
2021-07-31  6:29       ` Oleg Babin via Tarantool-patches
2021-07-31 16:51         ` Timur Safin via Tarantool-patches
2021-07-29 23:36   ` Vladislav Shpilevoy via Tarantool-patches
2021-07-30 15:39     ` Timur Safin via Tarantool-patches
2021-08-01 17:01       ` Vladislav Shpilevoy via Tarantool-patches
2021-08-01 20:23         ` Timur Safin via Tarantool-patches
2021-08-04 23:57           ` Vladislav Shpilevoy via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 03/11] lua, datetime: datetime tests Timur Safin via Tarantool-patches
2021-07-29 18:55   ` Oleg Babin via Tarantool-patches
2021-07-30 20:45     ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 04/11] lua, datetime: display datetime Timur Safin via Tarantool-patches
2021-07-29 18:55   ` Oleg Babin via Tarantool-patches
2021-07-30 21:48     ` Timur Safin via Tarantool-patches
2021-07-31  6:29       ` Oleg Babin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 05/11] box, datetime: add messagepack support for datetime Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 06/11] box, datetime: datetime comparison for indices Timur Safin via Tarantool-patches
2021-07-29 18:56   ` Oleg Babin via Tarantool-patches
2021-07-30 22:18     ` Timur Safin via Tarantool-patches
2021-07-31  6:30       ` Oleg Babin via Tarantool-patches
2021-07-31  9:31         ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 07/11] lua, datetime: proper datetime encoding Timur Safin via Tarantool-patches
2021-07-29 18:57   ` Oleg Babin via Tarantool-patches
2021-07-30 22:20     ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 08/11] lua, datetime: calculated attributes for datetimes Timur Safin via Tarantool-patches
2021-07-29 18:57   ` Oleg Babin via Tarantool-patches
2021-07-30 22:30     ` Timur Safin via Tarantool-patches
2021-07-31  6:31       ` Oleg Babin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 09/11] lua, datetime: time intervals support Timur Safin via Tarantool-patches
2021-07-29 18:58   ` Oleg Babin via Tarantool-patches
2021-07-30 22:58     ` Timur Safin via Tarantool-patches
2021-07-31  6:31       ` Oleg Babin via Tarantool-patches
2021-07-31  9:20         ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 10/11] lua, datetime: unixtime, timestamp setters in datetime.lua Timur Safin via Tarantool-patches
2021-07-29 18:58   ` Oleg Babin via Tarantool-patches
2021-07-30 23:11     ` Timur Safin via Tarantool-patches [this message]
2021-07-31  6:31       ` Oleg Babin via Tarantool-patches
2021-07-31  9:54         ` Timur Safin via Tarantool-patches
2021-07-28 10:34 ` [Tarantool-patches] [PATCH resend v2 11/11] datetime: changelog for datetime module Timur Safin via Tarantool-patches
2021-07-29 18:55 ` [Tarantool-patches] [PATCH resend v2 00/11] Initial datetime support Oleg Babin via Tarantool-patches

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