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Another round of editorialization on the text search documentation.

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Notably, standardize on using "token" for the strings output by a parser,
while "lexeme" is reserved for the normalized strings produced by a
dictionary.
This commit is contained in:
Tom Lane 2007-10-17 01:01:28 +00:00
parent cb0d539d05
commit 6efae5bf2a
2 changed files with 364 additions and 245 deletions
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17
doc/src/sgml/ref/alter_tsdictionary.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_tsdictionary.sgml,v 1.2 2007/08/22 01:39:44 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_tsdictionary.sgml,v 1.3 2007/10/17 01:01:28 tgl Exp $
PostgreSQL documentation
-->
@ -122,6 +122,21 @@ ALTER TEXT SEARCH DICTIONARY my_dict ( StopWords = newrussian );
<programlisting>
ALTER TEXT SEARCH DICTIONARY my_dict ( language = dutch, StopWords );
</programlisting>
<para>
The following example command <quote>updates</> the dictionary's
definition without actually changing anything.
<programlisting>
ALTER TEXT SEARCH DICTIONARY my_dict ( dummy );
</programlisting>
(The reason this works is that the option removal code doesn't complain
if there is no such option.) This trick is useful when changing
configuration files for the dictionary: the <command>ALTER</> will
force existing database sessions to re-read the configuration files,
which otherwise they would never do if they had read them earlier.
</para>
</refsect1>
<refsect1>

592
doc/src/sgml/textsearch.sgml
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