Hi Laurenz Albe , Thanks for reply. Your guess was correct :). It worked for me exporting LD_LIBRARY_PATH to postgres9.2 lib directory. Thanks again for your help. Regards, Amul Sul -- View this message in context: http://postgresql.1045698.n5.nabble.com/DBT5-execution-failed-due-to-undefined-symbol-PQescapeLiteral-tp5767580p5767992.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance