cat /etc/odbc.ini
[PostgreSQL-CH-global]
Driver = PostgreSQLCH
ServerName = haproxy
Port = 5432
Database = global
UserName = ronly
Password = ronly
Protocol = 9.6
RowVersioning       = No
ShowSystemTables    = No

cat /etc/odbcinst.ini
[PostgreSQLCH]
Description     = ODBC for PostgreSQL via CH
Driver = /usr/pgsql-9.6/lib/psqlodbcw.so