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Thread: invalid byte sequence for encoding "UTF8"

invalid byte sequence for encoding "UTF8"

From
luke
Date:
I am running into a difference in behavior that I think is related to the psqlODBC driver between Windows and Linux.
OnWindows x86 using the Windows ODBC manager and psqlODBC 8.4.2 ANSI driver I have some C++ code that executes the
followingSQL statements and inserts into a Windows x86 PostgreSQL 8.4.2 database. 

CREATE TABLE luke_test(a TEXT);
INSERT INTO luke_test (a) VALUES('ý');
INSERT INTO luke_test (a) VALUES('þ');
INSERT INTO luke_test (a) VALUES('ÿ');
SELECT * FROM luke_test;
--ý
--þ
--ÿ
DROP TABLE luke_test;

Where the value being insered is a single character byte.  This seems to work fine in Windows.  I am not wanting to
treatthe bytes with there 8th bit set as multi-byte characters. 

However, if I compile and run the same C++ code on Linux x64 using unixODBC 2.2.15pre ODBC manager and psqlODBC 8.4.2
ANSIdriver inserting into the before mentioned Windows x86 PostreSQL 8.4.2 database I get different behavior. 

CREATE TABLE luke_test(a TEXT);
INSERT INTO luke_test (a) VALUES('ý');
Error executing "INSERT INTO luke_test (a) VALUES('ý');": ERROR:
invalid byte sequence for encoding "UTF8": 0xfd;
Error while executing the query
INSERT INTO luke_test (a) VALUES('þ');
Error executing "INSERT INTO luke_test (a) VALUES('þ');": ERROR:
invalid byte sequence for encoding "UTF8": 0xfe;
Error while executing the query
INSERT INTO luke_test (a) VALUES('ÿ');
Error executing "INSERT INTO luke_test (a) VALUES('ÿ');": ERROR:
invalid byte sequence for encoding "UTF8": 0xff;
Error while executing the query
SELECT * FROM luke_test;
DROP TABLE luke_test;

Which leads me to believe that my environment on Linux is trying to treat the character bytes as multi-byte characters.
I have tried SET client_encoding='ANSI_SQL' before I execute the inserts and that does not seem to help the situation.
Cananyone help explain the difference in behavior that I am seeing and suggest a workaround that does not involve
encodingthe character bytes as UTF8. 

Luke

Re: invalid byte sequence for encoding "UTF8"

From
Hiroshi Inoue
Date:
luke wrote:
> I am running into a difference in behavior that I think is related to the psqlODBC driver between Windows and Linux.
OnWindows x86 using the Windows ODBC manager and psqlODBC 8.4.2 ANSI driver I have some C++ code that executes the
followingSQL statements and inserts into a Windows x86 PostgreSQL 8.4.2 database. 
>
> CREATE TABLE luke_test(a TEXT);
> INSERT INTO luke_test (a) VALUES('ý');
> INSERT INTO luke_test (a) VALUES('þ');
> INSERT INTO luke_test (a) VALUES('ÿ');
> SELECT * FROM luke_test;
> --ý
> --þ
> --ÿ
> DROP TABLE luke_test;
>
> Where the value being insered is a single character byte.  This seems to work fine in Windows.  I am not wanting to
treatthe bytes with there 8th bit set as multi-byte characters. 
>
> However, if I compile and run the same C++ code on Linux x64 using unixODBC 2.2.15pre ODBC manager and psqlODBC 8.4.2
ANSIdriver inserting into the before mentioned Windows x86 PostreSQL 8.4.2 database I get different behavior. 
>
> CREATE TABLE luke_test(a TEXT);
> INSERT INTO luke_test (a) VALUES('ý');
> Error executing "INSERT INTO luke_test (a) VALUES('ý');": ERROR:
> invalid byte sequence for encoding "UTF8": 0xfd;
> Error while executing the query
> INSERT INTO luke_test (a) VALUES('þ');
> Error executing "INSERT INTO luke_test (a) VALUES('þ');": ERROR:
> invalid byte sequence for encoding "UTF8": 0xfe;
> Error while executing the query
> INSERT INTO luke_test (a) VALUES('ÿ');
> Error executing "INSERT INTO luke_test (a) VALUES('ÿ');": ERROR:
> invalid byte sequence for encoding "UTF8": 0xff;
> Error while executing the query
> SELECT * FROM luke_test;
> DROP TABLE luke_test;
>
> Which leads me to believe that my environment on Linux is trying to treat the character bytes as multi-byte
characters.
 > I have tried SET client_encoding='ANSI_SQL' before I execute the
inserts and that does not seem to help the situation.

Please try  SET client_encoding='LATIN1' .

regards,
Hiroshi Inoue

 > Can anyone help explain the difference in behavior that I am seeing
and suggest a workaround that does not involve encoding the character
bytes as UTF8.

Re: invalid byte sequence for encoding "UTF8"

From
Luke Coldiron
Date:
Hiroshi Inoue wrote:
> luke wrote:
>> I am running into a difference in behavior that I think is related to
>> the psqlODBC driver between Windows and Linux.  On Windows x86 using
>> the Windows ODBC manager and psqlODBC 8.4.2 ANSI driver I have some
>> C++ code that executes the following SQL statements and inserts into
>> a Windows x86 PostgreSQL 8.4.2 database.
>>
>> CREATE TABLE luke_test(a TEXT);
>> INSERT INTO luke_test (a) VALUES('ý');
>> INSERT INTO luke_test (a) VALUES('þ');
>> INSERT INTO luke_test (a) VALUES('ÿ');
>> SELECT * FROM luke_test;
>> --ý
>> --þ
>> --ÿ
>> DROP TABLE luke_test;
>>
>> Where the value being insered is a single character byte.  This seems
>> to work fine in Windows.  I am not wanting to treat the bytes with
>> there 8th bit set as multi-byte characters.
>>
>> However, if I compile and run the same C++ code on Linux x64 using
>> unixODBC 2.2.15pre ODBC manager and psqlODBC 8.4.2 ANSI driver
>> inserting into the before mentioned Windows x86 PostreSQL 8.4.2
>> database I get different behavior.
>>
>> CREATE TABLE luke_test(a TEXT);
>> INSERT INTO luke_test (a) VALUES('ý');
>> Error executing "INSERT INTO luke_test (a) VALUES('ý');": ERROR:
>> invalid byte sequence for encoding "UTF8": 0xfd;
>> Error while executing the query
>> INSERT INTO luke_test (a) VALUES('þ');
>> Error executing "INSERT INTO luke_test (a) VALUES('þ');": ERROR:
>> invalid byte sequence for encoding "UTF8": 0xfe;
>> Error while executing the query
>> INSERT INTO luke_test (a) VALUES('ÿ');
>> Error executing "INSERT INTO luke_test (a) VALUES('ÿ');": ERROR:
>> invalid byte sequence for encoding "UTF8": 0xff;
>> Error while executing the query
>> SELECT * FROM luke_test;
>> DROP TABLE luke_test;
>>
>> Which leads me to believe that my environment on Linux is trying to
>> treat the character bytes as multi-byte characters.
> > I have tried SET client_encoding='ANSI_SQL' before I execute the
> inserts and that does not seem to help the situation.
>
> Please try  SET client_encoding='LATIN1' .
That worked! Thank you!
>
> regards,
> Hiroshi Inoue
>
> > Can anyone help explain the difference in behavior that I am seeing
> and suggest a workaround that does not involve encoding the character
> bytes as UTF8.
>
>
>
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