| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | pgpool-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Implement protocol 3.2 BackendKeyData and cancel request message |
| Date: | 2025-07-15 01:54:40 |
| Message-ID: | 20250715.105440.1906014753922388607.ishii@postgresql.org |
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| Lists: | pgpool-hackers |
> Starting from PostgreSQL 18, frontend/backend protocol has been
> changed from 3.0 to 3.2. In the changes the BackendKeyData and query
> cancel message are modified to allow variable length cancel key.
>
> This commit is a follow up to 766e73811 and implements the changes
> needed above. See attached patches.
>
> With the patch we can connect to PostgreSQL 18 frontend and backend
> using 3.2 protocol.
>
> Since PostgreSQL 18's psql uses 3.0 protocol by default, in order to
> test 3.2 protocol, you can do something like:
>
> PGMAXPROTOCOLVERSION="3.2" psql -p 11000 test
Attached is the v2 patch which add more comments and some cosmetic
changes.
Best regards,
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp
| Attachment | Content-Type | Size |
|---|---|---|
| v2-0001-Feature-implement-protocol-version-3.2-BackendKey.patch | text/x-patch | 26.5 KB |
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