Re: Invalid message format Exception

I'm sure most will urge you to move to UTF-8 encoding asap.

Have you tracked down the "offending" insert statement? Perhaps it's a
trigger trying to generate a log message?

On 05/12/2010 04:34 AM, Gnanakumar wrote:
> Hi,
>
> Because there was no response for this question already posted in
> pgsql-jdbc(at)postgresql(dot)org mailing list, I'm posting it here.
>
> I'm using PostgreSQL 8.2 and my production server is based on CentOS release
> 5.2 (Final).
>
> JDBC Jar: postgresql-8.2-508.jdbc4.jar
>
> I noticed from my server log that some INSERT statements are failing with
> "invalid message format" PSQLException. Once this exception is thrown, it
> is not committed to the database. What could be the reason for this?
>
> EXCEPTION
> org.postgresql.util.PSQLException: ERROR: invalid message format
>
> STACKTRACE
> org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorI
> mpl.java:1592)
> org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.ja
> va:1327)
> org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:193)
> org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.j
> ava:452)
> org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2St
> atement.java:337)
> org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2State
> ment.java:283)
>
> I also read about this on:
> http://archives.postgresql.org/pgsql-jdbc/2008-04/msg00085.php
> "JDBC driver is doing something wrong when calculating a message
> length or message content for the frontend/backend protocol"
> But how do I resolve this issue?
> http://archives.postgresql.org/pgsql-jdbc/2004-03/msg00142.php
> you can't represent a \0 byte in a text/varchar constant
>
> Even though I don't have much idea on encoding, I have a little doubt on
> whether encoding is a problem.
>
> Here is my database encoding:
> mydb=# \l
> List of databases
> Name | Owner | Encoding
> ----------------------+----------+-----------
> mydb | zoniac | SQL_ASCII
>
> Any pointers in right direction are appreciated.
>
>
>