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From: Tom Lane <[email protected]>
To: Vivek Gadge <[email protected]>
Cc: [email protected]
Subject: Re: PostgreSQL Upgrade Issue - Undefined Symbol Error
Date: Thu, 15 Aug 2024 22:15:23 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAK+uD7guyY-W4tyWeAnfjBacr19GpMkyrbusV2pXjZypkKF4QQ@mail.gmail.com>
References: <CAK+uD7guyY-W4tyWeAnfjBacr19GpMkyrbusV2pXjZypkKF4QQ@mail.gmail.com>

Vivek Gadge <[email protected]> writes:
> I am encountering an error after completion of PostgreSQL upgradation from
> version 13.8 to 15.6. Trying to describe a single table, I am receiving an
> error.

> psql: symbol lookup error: psql: undefined symbol: PQmblenBounded

This indicates that your psql executable is linking to an old version
of libpq.so.  (Running "ldd" on the psql file should confirm that.)
You may have a problem with the library search path being used by the
dynamic loader.

			regards, tom lane

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