Re: Invalid byte sequence when importing Oracle BLOB

On 4/26/21 7:32 AM, Peter J. Holzer wrote:
> On 2021-04-26 06:49:18 -0500, Ron wrote:
>> The destination is an (RDS) Postgresql 12.5 with encoding UTF8, and is being
>> loaded through COPY commands generated by ora2pg.
>>
>> The source table has a BLOB column (I think they are scanned images) which
>> I'm loading into a Postgresql bytea column.
>>
>> Seven times out of about 60M rows, I get this error:
>> Psql:909242: ERROR:  invalid byte sequence for encoding "UTF8": 0xed 0xaf 0xbf
> Decoding UTF8 doesn't make sense for a bytea column. How does that data
> look like in the file generated by ora2pg?

I thought it was weird, too, but COPY has to read text, no?

Anyway, here are the first 8 lines (beware line wrapping) of the input file:

SET client_encoding TO 'UTF8';
SET synchronous_commit TO off;
SET search_path = strans,public;

TRUNCATE TABLE mv_response_attachment_old;

COPY mv_response_attachment_old
(response_attachement_id,binary_data,employer_response_id,attachment_id_code,file_type,attachment_desc,attachment_size,file_name,partition_date,prior_incident_id,part_date)
FROM STDIN;
1583201 \\x255044462d312e330d25e2e3cfd30d0a31362030206f...

It looks like a bog-standard COPY command, with which I've imported a lot of
data.

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