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From: Bruce Momjian <bruce@momjian.us>
Message-Id: <200801122151.m0CLpoM07983@momjian.us>
Subject: Re: Documentation bug in 8.3?
In-Reply-To: <22467.1200174238@sss.pgh.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 12 Jan 2008 16:51:50 -0500 (EST)
CC: PostgreSQL-documentation <pgsql-docs@postgresql.org>
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Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > 	clamped to 16383. Duplicate position entries are discarded. 
> > 	                  ----------------------------------------
> 
> > However in my testing of 8.3 duplicate position entries are not
> > discarded:
> 
> > 	test=> SELECT 'a:1 b:1'::tsvector;
> > 	  tsvector
> > 	-------------
> > 	 'a':1 'b':1
> > 	(1 row)
> 
> Those aren't duplicates, because they're not attached to the same
> lexeme.  The comment is talking about this behavior:
> 
> regression=# SELECT 'a:1 a:1'::tsvector;
>  tsvector 
> ----------
>  'a':1
> (1 row)
> 
> regression=# SELECT 'a:1,2,1'::tsvector;
>  tsvector 
> ----------
>  'a':1,2
> (1 row)

OK, thanks.  I will clarify the documentation.  Patch attached and
applied.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://postgres.enterprisedb.com

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

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Index: doc/src/sgml/datatype.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v
retrieving revision 1.222
diff -c -c -r1.222 datatype.sgml
*** doc/src/sgml/datatype.sgml	2 Jan 2008 19:53:13 -0000	1.222
--- doc/src/sgml/datatype.sgml	12 Jan 2008 21:50:51 -0000
***************
*** 3330,3336 ****
       document.  Positional information can be used for
       <firstterm>proximity ranking</firstterm>.  Position values can
       range from 1 to 16383; larger numbers are silently clamped to 16383.
!      Duplicate position entries are discarded.
      </para>
  
      <para>
--- 3330,3336 ----
       document.  Positional information can be used for
       <firstterm>proximity ranking</firstterm>.  Position values can
       range from 1 to 16383; larger numbers are silently clamped to 16383.
!      Duplicate positions for the same lexeme are discarded.
      </para>
  
      <para>

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