The basic requirements for using teh pgExpress Driver are:
libpq
library compatible with
the server version the driver will connect.The pgExpress package contains
a libpq
library that can be used to
connect to your database server. It is supplied just to make installation easier;
however, you can use any libpq
as
long as it is compatible with your database server.
It is possible that the supplied libpq
library contains some dependencies that
are not met by your system, or by the deployment system. In that
case, we suggest to either compile the libpq
yourself.
Under Windows
, you can either
use our supplied libpq
, which
should work on all related platforms out of the box, or get the
binary from the PostgreSQL
distribution. The supplied libpq
does not include SSL support in order
to make requirements easier to achieve.
We look forward to include always the latest libpq
version in the pgExpress package, but feel free to replace it
with the latest version you have on your system at any time. For
Windows
users, please refer to
PostgreSQL for Windows distribution, and get the latest
"no-installer" distribution, such as "postgresql-8.1.2-1-binaries-no-installer.zip
".
This file will contain the latest libpq
library compiled for Windows
, and any additional requirements.
The dependencies for the libpq.so
library can vary from version to version, but at the time of this
writing, are:
libpq.so.4: libssl.so.4 = /usr/lib/libssl.so.4 (0x28176000) libcrypto.so.4 = /lib/libcrypto.so.4 (0x281a4000) libcrypt.so.3 = /lib/libcrypt.so.3 (0x28296000)
libpq
incompatibilities:libpq.dll
/libpq.so
library provided in the distribution and
other clients such as psql -
specialy under Linux
/Kylix. To solve this, you can either:
If you rename the library to libpq_pge.so
, for instance, your entry should
become VendorLib=libpq_pge.so
accordingly.
There are more instructions on the dbxdrivers.ini
/dbxdrivers
file below.
Linux
only)- use the
standard libpq.so
file from the
original PostgreSQL
distribution, as it is, on your system;libpq.so
/libpq.dll
file from the pgExpress Driver distribution to something
else, and update the entry on the dbxdrivers.ini
/dbxdrivers
file (which is by default
VendorLib=libpq.sounder Kylix or
VendorLib=libpq.dllunder
Windows
.