Hello there, I am a total novice to Postgresql, but very much interested in learning how it works. I have to modify the source code of Postgresql-9.0.1 such that whenever I run an UPDATE command it should print out the old and new tuples. Since I am a beginner I would appreciate it a lot if anyone of you out there could point me in right direction. Which files will I need to modify to get the desired results? -- View this message in context: http://postgresql.1045698.n5.nabble.com/Modfying-source-code-to-read-tuples-before-and-after-UPDATE-how-to-tp3251651p3251651.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general