BUG #6148: unterminated CSV quoted field

The following bug has been logged online:

Bug reference:      6148
Logged by:          william wei
Email address:      wei_jieyun@founder.com
PostgreSQL version: 8
Operating system:   linux
Description:        unterminated CSV quoted field
Details:

error: unterminated CSV quoted field. when import CSV file.

copy command:
COPY tablename FROM '/tmp/test.cvs' csv DELIMITER AS ',' NULL AS '' QUOTE AS
'"';

CVS file content: (error when value contains \")
"value1 \" text ","value2","value3"