Carto ODBC_FDW issue "ERROR: Connecting to driver" from PG to DB2

Hi Guru's,

I am trying to access few table present in DB2 LUW from postgres database.
All commands work fine, however when I try to select data from table it
throws error:

pg(at)a92a3741d40e:~/odbc_fdw$ psql -d postgres
psql (10.1)
Type "help" for help.

postgres=# create extension odbc_fdw;
CREATE EXTENSION

postgres=# CREATE SERVER odbc_db2 FOREIGN DATA WRAPPER odbc_fdw OPTIONS
(dsn 'SAMPLE');
CREATE SERVER

postgres=# CREATE USER MAPPING FOR pg SERVER odbc_db2 OPTIONS (odbc_UID
'db2inst1', odbc_PWD 'db2inst1');
CREATE USER MAPPING

postgres=#
postgres=# CREATE FOREIGN TABLE
postgres-# odbc_testt (
postgres(# id integer
postgres(# )
postgres-# SERVER odbc_db2
postgres-# OPTIONS (
postgres(# odbc_database 'SAMPLE',
postgres(# odbc_schema 'db2inst1',
postgres(# sql_query 'select x from `db2inst1`.`TESTT`',
postgres(# sql_count 'select count(id) from `db2inst1`.`dblist`'
postgres(# );
CREATE FOREIGN TABLE

postgres=# select * from odbc_testt;
ERROR: Connecting to driver

pg(at)a92a3741d40e:~/odbc_fdw$ isql -v SAMPLE db2inst1 db2inst1
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
SQL> select * from testt;
+------------+
| X |
+------------+
| 1 |
+------------+
SQLRowCount returns -1
1 rows fetched
SQL> quit

root(at)a92a3741d40e:/home/pg# cat /etc/odbc.ini
[SAMPLE]
Description = DB2 remote SAMPLE Database
Driver=/home/db2inst1/sqllib/lib64/libdb2.so
SERVERNAME=MYDB2
UID=db2inst1
PWD=db2inst1
port=50000

Thanks,
Karthik.