Re: [GENERAL] Advise on primary key for detail tables (OS: Raspberry Pi)
От | Ertan Küçükoğlu |
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Тема | Re: [GENERAL] Advise on primary key for detail tables (OS: Raspberry Pi) |
Дата | |
Msg-id | 026c01d2aedb$5af5ba50$10e12ef0$@1nar.com.tr обсуждение исходный текст |
Ответ на | Re: [GENERAL] Advise on primary key for detail tables (OS: RaspberryPi) (Adrian Klaver <adrian.klaver@aklaver.com>) |
Ответы |
Re: [GENERAL] Advise on primary key for detail tables (OS: RaspberryPi)
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Список | pgsql-general |
-----Original Message----- From: Adrian Klaver [mailto:adrian.klaver@aklaver.com] Sent: Thursday, April 6, 2017 4:18 PM To: Ertan Küçükoğlu <ertan.kucukoglu@1nar.com.tr>; pgsql-general@postgresql.org Subject: Re: [GENERAL] Advise on primary key for detail tables (OS: Raspberry Pi) > On 04/06/2017 03:27 AM, Ertan Küçükoğlu wrote: > > Sorry for top posting. > > > > I have a serial in master table because I need to know data insertion order. > > DateTime on Raspberry Pi is not accurate due to power loss and lack of > > internet access to fetch correct time from. > > Understand, though it does beg the question, why have the uuid column? > > -- > Adrian Klaver > adrian.klaver@aklaver.com Programmatically it is easier as I can start saving from very bottom detail table instead of having to save first the master table record. Users will directly work on detail tables. Master table will be saved & updated by software automatically as last piece of information.
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