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Fix tsearch docs
Remove mention of setweight(tsquery) which wasn't included in 9.6. Also replace old forgotten phrase operator to new one. Dmitry Ivanov
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@ -1519,34 +1519,6 @@ SELECT tsquery_phrase(to_tsquery('fat'), to_tsquery('cat'), 10);
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</varlistentry>
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<varlistentry>
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<term>
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<indexterm>
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<primary>setweight</primary>
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</indexterm>
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<literal>setweight(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>, <replaceable class="PARAMETER">weight</replaceable> <type>"char"</>) returns <type>tsquery</></literal>
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</term>
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<listitem>
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<para>
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<function>setweight</> returns a copy of the input query in which every
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position has been labeled with the given <replaceable>weight</>(s), either
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<literal>A</literal>, <literal>B</literal>, <literal>C</literal>,
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<literal>D</literal> or their combination. These labels are retained when
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queries are concatenated, allowing words from different parts of a document
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to be weighted differently by ranking functions.
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</para>
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<para>
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Note that weight labels apply to <emphasis>positions</>, not
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<emphasis>lexemes</>. If the input query has been stripped of
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positions then <function>setweight</> does nothing.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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@ -2588,7 +2560,7 @@ more sample word(s) : more indexed word(s)
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<para>
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Specific stop words recognized by the subdictionary cannot be
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specified; instead use <literal><-></> to mark the location where any
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specified; instead use <literal>?</> to mark the location where any
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stop word can appear. For example, assuming that <literal>a</> and
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<literal>the</> are stop words according to the subdictionary:
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