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From: Tom Lane <[email protected]>
To: Achilleas Mantzios - cloud <[email protected]>
Cc: [email protected]
Cc: Achilleas Mantzios <[email protected]>
Subject: Re: Migrating from 10 -> 16, PreparedStatements disabled in JDBC and pgbouncer, I am getting : bind <unnamed>/C_5
Date: Fri, 18 Oct 2024 10:36:34 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Achilleas Mantzios - cloud <[email protected]> writes:
> I have noticed in the pgsql 16.4 logs some lines with this pattern :

> 10.9.0.110(45201) [4079203] 67122b3b.3e3e63 2024-10-18 12:32:44.260 EEST 
> SMA  amantzio@dynacom line:35 LOG:  duration: 0.166 ms  parse <unnamed>: 
> SELECT work_status FROM company_stuff WHERE ldap_cn = $
> 1
> 10.9.0.110(45201) [4079203] 67122b3b.3e3e63 2024-10-18 12:32:44.261 EEST 
> SMA  amantzio@dynacom line:36 LOG:  duration: 0.553 ms  bind 
> <unnamed>/C_5: SELECT work_status FROM company_stuff WHERE ldap_cn
> = $1
> 10.9.0.110(45201) [4079203] 67122b3b.3e3e63 2024-10-18 12:32:44.261 EEST 
> SMA  amantzio@dynacom line:38 LOG:  duration: 0.036 ms  execute 
> <unnamed>/C_5: SELECT work_status FROM company_stuff WHERE ldap_
> cn = $1

> So the parse is done on an unnamed prepared statement, however the bind 
> and the execute show this : /C_5 after<unnamed>. We haven't got any log 
> entries with this /C_* pattern on the "parse" phase, only on "bind" and 
> "execute". I am curious what those represent.

Here C_5 would be a portal name, identifying the bound-and-ready-
to-execute query.  See

https://www.postgresql.org/docs/current/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY

			regards, tom lane

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