| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Ruslan Talpa <ruslan(dot)talpa(at)subzero(dot)cloud> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: set_config with is_local parameter true escapes transaction boundaries |
| Date: | 2023-01-12 05:58:32 |
| Message-ID: | CAKFQuwYr81AtmN4819uLEJbjF9aEyODkr6DAqDYk8gBU_KiwZQ@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Wed, Jan 11, 2023 at 1:16 AM Ruslan Talpa <ruslan(dot)talpa(at)subzero(dot)cloud>
wrote:
> Maybe this is only a documentation issue, for example have a note in
> 9.27.1 or 20.16 along the lines “Note: Once a GUC value has been set, even
> with is_local set to true, subsequent calls to current_setting will return
> an empty string”
>
Yes, we really should get around to documenting this better. I haven't
seen any indication that it is going to change. It hasn't in the 5 years
or so since it last was brought to our attention.
Though maybe with our recent performance enhancements, and a more accepting
mentality toward people creating custom settings, and the stalled nature of
the session variables feature, maybe someone will have a change of heart.
David J.
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