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In text search docs, properly use indexterm _zone_ only when we want an
entire section, per Peter.
This commit is contained in:
Bruce Momjian
parent
6e832b059e
commit
99a01bfd1e
@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.208 2007/08/29 20:37:14 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.209 2007/08/31 04:52:29 momjian Exp $ -->
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<chapter id="datatype">
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<title id="datatype-title">Data Types</title>
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@ -3281,20 +3281,18 @@ a0eebc999c0b4ef8bb6d6bb9bd380a11
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<variablelist>
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<indexterm zone="datatype-textsearch">
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<primary>tsvector</primary>
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</indexterm>
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<varlistentry>
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<term><firstterm>tsvector</firstterm></term>
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<listitem>
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<para>
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<type>tsvector</type> is a data type that represents a document and is
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optimized for full text searching. In the simplest case,
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<type>tsvector</type> is a sorted list of lexemes, so even without indexes
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full text searches perform better than standard <literal>~</literal> and
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<literal>LIKE</literal> operations:
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<type>tsvector</type>
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<indexterm><primary>tsvector</primary></indexterm> is a data type
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that represents a document and is optimized for full text searching.
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In the simplest case, <type>tsvector</type> is a sorted list of
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lexemes, so even without indexes full text searches perform better
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than standard <literal>~</literal> and <literal>LIKE</literal>
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operations:
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<programlisting>
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SELECT 'a fat cat sat on a mat and ate a fat rat'::tsvector;
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@ -3355,19 +3353,17 @@ SELECT 'fat:1 rat:2'::tsvector || 'fat:1 cat:2'::tsvector;
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</varlistentry>
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<indexterm zone="datatype-textsearch">
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<primary>tsquery</primary>
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</indexterm>
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<varlistentry>
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<term><firstterm>tsquery</firstterm></term>
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<listitem>
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<para>
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<type>tsquery</type> is a data type for textual queries which supports
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the boolean operators <literal>&</literal> (AND), <literal>|</literal> (OR),
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and parentheses. A <type>tsquery</type> consists of lexemes
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(optionally labeled by letters) with boolean operators in between:
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<type>tsquery</type>
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<indexterm><primary>tsquery</primary></indexterm> is a data type
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for textual queries which supports the boolean operators
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<literal>&</literal> (AND), <literal>|</literal> (OR), and
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parentheses. A <type>tsquery</type> consists of lexemes (optionally
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labeled by letters) with boolean operators in between:
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<programlisting>
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SELECT 'fat & cat'::tsquery;
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.390 2007/08/29 21:51:45 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.391 2007/08/31 04:52:29 momjian Exp $ -->
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<chapter id="functions">
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<title>Functions and Operators</title>
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@ -7585,7 +7585,7 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
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<varlistentry>
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<indexterm zone="functions-textsearch-search-operator">
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<indexterm>
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<primary>TSVECTOR @@ TSQUERY</primary>
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</indexterm>
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@ -7620,7 +7620,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat'::tsvector @@ 'fat & cow'::
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<varlistentry>
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<indexterm zone="functions-textsearch-search-operator">
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<indexterm>
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<primary>TEXT @@ TSQUERY</primary>
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</indexterm>
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@ -7652,7 +7652,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat'::text @@ 'cat & cow'::tsqu
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<varlistentry>
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<indexterm zone="functions-textsearch-search-operator">
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<indexterm>
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<primary>TEXT @@ TEXT</primary>
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</indexterm>
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@ -7701,7 +7701,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>to_tsvector</primary>
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</indexterm>
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@ -7723,7 +7723,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>strip</primary>
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</indexterm>
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@ -7746,7 +7746,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>setweight</primary>
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</indexterm>
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@ -7771,7 +7771,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>tsvector concatenation</primary>
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</indexterm>
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@ -7802,7 +7802,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>length(tsvector)</primary>
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</indexterm>
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@ -7821,7 +7821,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>text::tsvector</primary>
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</indexterm>
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@ -7846,7 +7846,7 @@ SELECT 'a fat cat sat on a mat and ate a fat rat' @@ 'cat cow';
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>trigger</primary>
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<secondary>for updating a derived tsvector column</secondary>
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</indexterm>
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@ -7896,7 +7896,7 @@ tsvector_update_trigger(tsv, 'pg_catalog.english', strMessage);
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>ts_stat</primary>
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</indexterm>
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@ -7943,7 +7943,7 @@ LIMIT 10;
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<varlistentry>
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<indexterm zone="functions-textsearch-tsvector">
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<indexterm>
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<primary>Btree operations for tsvector</primary>
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</indexterm>
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@ -7979,7 +7979,7 @@ LIMIT 10;
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>to_tsquery</primary>
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</indexterm>
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@ -8026,7 +8026,7 @@ SELECT to_tsquery('''supernovae stars'' & !crab');
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>plainto_tsquery</primary>
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</indexterm>
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@ -8051,7 +8051,7 @@ SELECT to_tsquery('''supernovae stars'' & !crab');
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>querytree</primary>
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</indexterm>
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@ -8081,7 +8081,7 @@ SELECT querytree(to_tsquery('!defined'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>text::tsquery casting</primary>
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</indexterm>
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@ -8107,7 +8107,7 @@ SELECT querytree(to_tsquery('!defined'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>numnode</primary>
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</indexterm>
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@ -8146,7 +8146,7 @@ SELECT numnode(plainto_tsquery('long table'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>TSQUERY && TSQUERY</primary>
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</indexterm>
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@ -8165,7 +8165,7 @@ SELECT numnode(plainto_tsquery('long table'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>TSQUERY || TSQUERY</primary>
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</indexterm>
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@ -8184,7 +8184,7 @@ SELECT numnode(plainto_tsquery('long table'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>!! TSQUERY</primary>
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</indexterm>
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@ -8203,7 +8203,7 @@ SELECT numnode(plainto_tsquery('long table'));
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>Btree operations for tsquery</primary>
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</indexterm>
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@ -8257,7 +8257,7 @@ INSERT INTO aliases VALUES('a', 'c');
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>ts_rewrite</primary>
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</indexterm>
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@ -8404,7 +8404,7 @@ WHERE 'a & b' @> t;
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>TSQUERY @> TSQUERY</primary>
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</indexterm>
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@ -8423,7 +8423,7 @@ WHERE 'a & b' @> t;
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<varlistentry>
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<indexterm zone="functions-textsearch-tsquery">
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<indexterm>
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<primary>tsquery <@ tsquery</primary>
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</indexterm>
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@ -429,6 +429,11 @@ ORDER BY rank DESC LIMIT 10;
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<sect2 id="textsearch-parser">
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<title>Parsing</title>
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<indexterm zone="textsearch-parser">
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<primary>text search</primary>
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<secondary>parse</secondary>
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</indexterm>
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<para>
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Full text searching in <productname>PostgreSQL</productname> provides
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function <function>to_tsvector</function>, which converts a document to
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@ -544,11 +549,6 @@ UPDATE tt SET ti=
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<varlistentry>
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<indexterm zone="textsearch-parser">
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<primary>text search</primary>
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<secondary>parse</secondary>
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</indexterm>
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<term>
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<synopsis>
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ts_parse(<replaceable class="PARAMETER">parser</replaceable>, <replaceable class="PARAMETER">document</replaceable> TEXT) returns SETOF <type>tokenout</type>
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