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Fix generation of too long headline with ShortWords.

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Per http://archives.postgresql.org/pgsql-hackers/2008-09/msg01088.php
This commit is contained in:
Teodor Sigaev 2009-01-15 17:05:39 +00:00
parent 09156de640
commit 90208cc2fb
1 changed files with 4 additions and 2 deletions
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6
src/backend/tsearch/wparser_def.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tsearch/wparser_def.c,v 1.14.2.1 2008/10/17 17:32:59 teodor Exp $ * $PostgreSQL: pgsql/src/backend/tsearch/wparser_def.c,v 1.14.2.2 2009/01/15 17:05:39 teodor Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1799,12 +1799,14 @@ prsd_headline(PG_FUNCTION_ARGS)
if (curlen < min_words && i >= prs->curwords) if (curlen < min_words && i >= prs->curwords)
{ /* got end of text and our cover is shoter { /* got end of text and our cover is shoter
* than min_words */ * than min_words */
for (i = p; i >= 0; i--) for (i = p - 1; i >= 0; i--)
{ {
if (!NONWORDTOKEN(prs->words[i].type)) if (!NONWORDTOKEN(prs->words[i].type))
curlen++; curlen++;
if (prs->words[i].item && !prs->words[i].repeated) if (prs->words[i].item && !prs->words[i].repeated)
poslen++; poslen++;
if ( curlen >= max_words )
break;
if (NOENDTOKEN(prs->words[i].type) || prs->words[i].len <= shortword) if (NOENDTOKEN(prs->words[i].type) || prs->words[i].len <= shortword)
continue; continue;
if (curlen >= min_words) if (curlen >= min_words)