How to check running database is 32 bit

Hello,

I have installed Postgresql 8.2.4 using Tarball on Suse Linux 10.1 (64 Bit).

I already had running Postgresql 64 bit under /var/lib/pgsql. I installed 32 bit 2nd Postgresql using Tarball under
/usr/local/pgsql.I want to cross check whether it is 32 bit or 64 bit. So how shld I check the same? 

Thanks,
Nilesh







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