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Remove tabs from SGML files to help tag alingment and improve
detection of tabs are added in the future.
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@@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/gin.sgml,v 2.10 2007/02/01 19:10:24 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/gin.sgml,v 2.11 2007/02/16 03:50:29 momjian Exp $ -->
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<chapter id="GIN">
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<title>GIN Indexes</title>
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@@ -100,12 +100,12 @@
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to consult <literal>n</> to determine the data type of
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<literal>query</> and the key values that need to be extracted.
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The number of returned keys must be stored into <literal>*nkeys</>.
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If number of keys is equal to zero then <function>extractQuery</>
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should store 0 or -1 into <literal>*nkeys</>. 0 means that any
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row matches the <literal>query</> and sequence scan should be
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produced. -1 means nothing can satisfy <literal>query</>.
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Choice of value should be based on semantics meaning of operation with
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given strategy number.
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If number of keys is equal to zero then <function>extractQuery</>
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should store 0 or -1 into <literal>*nkeys</>. 0 means that any
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row matches the <literal>query</> and sequence scan should be
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produced. -1 means nothing can satisfy <literal>query</>.
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Choice of value should be based on semantics meaning of operation with
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given strategy number.
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</para>
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</listitem>
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</varlistentry>
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