| From: | Alexander Shelemin <shelemin(at)gmail(dot)com> |
|---|---|
| To: | Michel SALAIS <msalais(at)msym(dot)fr> |
| Cc: | Yambu <hyambu(at)gmail(dot)com>, Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: select locks table for updates |
| Date: | 2020-11-19 10:27:46 |
| Message-ID: | CABokcfWJ58F+VQzOyTsjVz7a2owOpG+KGp9LhsKxbBmsd2jcCw@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
That depends on transaction isolation level. By default sql server doesn't
use MVCC, so selects need shared locks. It's easily changed, though.
On Thu, 19 Nov 2020, 11:20 Michel SALAIS, <msalais(at)msym(dot)fr> wrote:
> No! Not in PostgreSQL.
>
> However it is true for SQL Server.
>
>
>
> *Michel SALAIS*
>
> *De :* Yambu <hyambu(at)gmail(dot)com>
> *Envoyé :* jeudi 19 novembre 2020 11:07
> *À :* Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org>
> *Objet :* select locks table for updates
>
>
>
> Hi
>
>
>
> Does a select lock tables for updates?
>
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