invalid byte sequence for encoding "UTF8"

Hi All.

Now I am using postgres 9.4.3 version. Before I am used
9.1.3 after I upgraded 9.4.3. Upgraded was successfully completed.

In Postgres 9.1.3

#------------------#

OS : CentOS 5.2

Postgres Conf :

client_encoding = default value

List of databases

Name | Owner | Encoding | Collate | Ctype |
Access privileges

--------------------------+----------+-----------+---------+-------+--------
---------------

postgres | postgres | SQL_ASCII | C | C |

rsk | xxxxx | SQL_ASCII | C | C
|

template0 | postgres | SQL_ASCII | C | C |
=c/postgres + postgres=CTc/postgres

template1 | postgres | SQL_ASCII | C | C |
=c/postgres + postgres=CTc/postgres

Query

-----

rsk=# select columnname from tablename;

Status

=======

Query is working file;

Get the export database following command

# pg_dump --host "localhost" --port "5432" --username "xxxxx" "DBnameXXX" >
filenameXXX.sql

============================================================================
================================================

After upgrade In Postgres 9.4.3

#--------------------------------#

Problem 1 :

===========

OS : CentOS 7.0

Postgres Conf :

client_encoding = default value

import databse using

=================

# psql template1 xxxxx

template1=# create database DBnameXXX;

template1=# \q

# psql DBnameXXX xxxxx

rsk=# \i filenameXXX.sql

List of databases

Name | Owner | Encoding | Collate | Ctype | Access
privileges

-----------------+----------+-----------+------------+------------+---------
--------------

postgres | postgres | SQL_ASCII | en_US.utf8 | en_US.utf8 |

rsk | xxxxx | SQL_ASCII | en_US.utf8 | en_US.utf8 |

template0 | postgres | SQL_ASCII | en_US.utf8 | en_US.utf8 |
=c/postgres + postgres=CTc/postgres

template1 | postgres | SQL_ASCII | en_US.utf8 | en_US.utf8 |
=c/postgres + postgres=CTc/postgres

rsk=# select columnname from tablename;

we are getting error like this,

ERROR: invalid byte sequence for encoding "UTF8": 0xd9 0x30

ERROR: invalid byte sequence for encoding "UTF8": 0x80

ERROR: invalid byte sequence for encoding "UTF8": 0xa2

ERROR: invalid byte sequence for encoding "UTF8": 0x98

ERROR: invalid byte sequence for encoding "UTF8": 0x92

how to sovle probleam, if any configuration chnage. please let me know

With Regards,

Saravanakumar Ramasamy.