ERROR: COPY escape must be a single one-byte character (multi-delimiter appears to work on Postgres 9.0 but does not on Postgres 9.2)

Hello,

I have a Talend enterprise job that loads data into a PostgreSQL database
via the COPY command. When migrating to a new server this command fails
with the following error message: org.postgresql.util.PSQLException:ERROR:
COPY escape must be a single one-byte character

The thing is, I looked over the documentation for both Postgres 9.0 and
9.2. Both documentations say that multi-byte delimiters are not allowed. So
I'm very confused on why this job works perfectly on Postgres 9.0 but not
on 9.2.

I am unable to edit this Talend job, as it's very old and we do not have
the source code for the job anymore. I am unable to see what the actual
delimiter is. I am also unable to see exactly how the COPY command is being
run, such as whether it's pushing directly to the server via the Postgres
driver, or if it's created a temporary CSV file somewhere and then loading
the data into the server. I believe the reason we have multi byte
delimiters setup is due to the use of various special characters in a few
of the columns for multiple tables.

I am not aware of any edits to the source code of the old 9.0 Postgres
server.

The reason we are migrating servers is due to the end of life for CentOS 5.
The new server runs CentOS 7. I believe that both servers are using the
default Postgres versions that come in the default CentOS repositories. I
know for sure that the CentOS 7 server is indeed running the default
Postgres version, as I installed it myself through yum.

Any help would be greatly appreciated.

Also, is there a way to copy the old Postgres server, dependencies, and
executables to our new server, in case the source was modified?

Brandon Ragland
Software Engineer
BREAKFRONT SOFTWARE
Office: 704.688.4085 | Mobile: 240.608.9701 | Fax: 704.973.0607