Hi! The data types of tableout.c1 and tablein.c1 are both bytea. I first export tableout.c1 to a file: db1=# COPY (SELECT c1 FROM tableout LIMIT 1) TO '/tmp/t'; Then I try to import the file to another table. This works without flaw: db1=# COPY tablein FROM '/tmp/t'; However, I get the following errors from log when calling libpq functions PQputCopyData() and PQputCopyEnd(). 2010-03-06 20:47:42 CST ERROR: invalid byte sequence for encoding "UTF8": 0x00 2010-03-06 20:47:42 CST HINT: This error can also happen if the byte sequence does not match the encoding expected by the server, which is controlled by "client_encoding". 2010-03-06 20:47:42 CST CONTEXT: COPY in, line 1: "TPF0\011Report\000\003Tag\002\365\016ExportFromPage\002\000\014ExportToPage\002\000\006Values\016..." 2010-03-06 20:47:42 CST STATEMENT: COPY in FROM STDIN Helps will be much appreciated! CN -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
