Horton

Re: Deleting prepared statements from libpq.

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: jian he <jian.universality@gmail.com>
Cc: Jelte Fennema <me@jeltef.nl>, Dmitry Igrishin <dmitigr@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: 2023-06-18T23:31:02Z
Lists: pgsql-hackers 
On Sun, Jun 18, 2023 at 09:23:22PM +0800, jian he wrote:
> previously I cannot link it. with
> v2-0001-Support-sending-Close-messages-from-libpq.patch. now I can
> compile it, link it, but then run time error.
> same c program in the first email.
> when I run it ./a.out, then error:
> ./a.out: symbol lookup error: ./a.out: undefined symbol: PQsendClosePrepared

If you still have problems, it seems to me that one mistake is in not
updating LD_LIBRARY_PATH.  It should point to a version of libpq
compiled with the patch, or -lpq will not be able to resolve correctly
when compiling your test program.
--
Michael

Commits

  1. libpq: Add support for Close on portals and statements

  2. Fix incorrect error message in libpq_pipeline