the tsvectors turned to be the signatures and the signature is composed of binary code"0 OR 1", for such a long " 0010101101..." , how does the user input query word(i know it is also convert to signatures) know itself is the word which is in the " 0010101101..."
HELP
Thanks VERY VERY much for Teodor Sigaev help,and my next problem is which is more suitable
for index chinese words, TSearch2 OR Lucene? My mates said to me that Lucene is more effifent
because of its way of "Inverse Order OF Idexing",and "The GiST Tree is well for larting lan but doesn't for