| From: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
|---|---|
| To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
| Cc: | Daniel Verite <daniel(at)manitou-mail(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Variable substitution in psql backtick expansion |
| Date: | 2017-04-02 07:45:52 |
| Message-ID: | alpine.DEB.2.20.1704020917220.4632@lancre |
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| Thread: | |
| Lists: | pgsql-hackers |
Hello Pavel,
> For this case can be nice to have function that returns server version
> as number some like version_num() .. 10000
The server side information can be queried:
SELECT current_setting(‘server_version_num’)
AS server_version_num \gset
-- 90602
However client side is not so clean:
\echo :VERSION
PostgreSQL 10devel on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609, 64-bit
Probably some :VERSION_NUM would make some sense. See attached PoC patch.
Would it make sense?
--
Fabien.
| Attachment | Content-Type | Size |
|---|---|---|
| psql-version-num-1.patch | text/x-diff | 1.4 KB |
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