Thanks a lot. But I do got lot of challenges! Looks like SO data contains lot of tabs within itself.. So tabs delimiter didn't work for me. I thought I can give a special demiliter but looks like Postrgesql copy allow only one character as delimiter :(
Sad, I guess only way is to insert or do a through serialization of my data into something that COPY can understand.
easiest way would be:
xml -> csv -> \copy
by csv, I mean regular quoted csv (Simply wrap csv field with double quote, and escape
enventually contained quotes with an other double quote.).
Postgresql copy csv parser is one of the most robust I ever tested