Re: [BUGS] BUG #3975: tsearch2 index should not bomb out of 1Mb limit

Added to TODO:

        o Consider changing error to warning for strings larger than one
          megabyte

          http://archives.postgresql.org/pgsql-bugs/2008-02/msg00190.php
          http://archives.postgresql.org/pgsql-patches/2008-03/msg00062.php


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Tom Lane wrote:
> Bruce Momjian  writes:
> > Tom Lane wrote:
> >> I don't think that follows.  A tsearch index is lossy anyway, so there's
> 
> > Uh, the index is lossy but I thought it was lossy in a way that just
> > required additional heap accesses, not lossy in that it doesn't index
> > everything.
> 
> Sure it's lossy.  It doesn't index stopwords, and it doesn't index the
> difference between various forms of a word (when the dictionaries reduce
> them to a common root).
> 
> > I am concerned a 1mb limit is too low though.  Exactly why can't we have
> > a higher limit?  Is positional information that significant?
> 
> That's pretty much exactly the point: it's not very significant, and it
> doesn't justify a total inability to index large documents.
> 
> One thing we could do is index words that are past the limit but not
> store a position, or perhaps have the convention that the maximum
> position value means "somewhere past here".
> 
> 			regards, tom lane
> 
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-- 
  Bruce Momjian          http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +