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@@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_index.sgml,v 1.26 2002/01/20 22:19:56 petere Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_index.sgml,v 1.27 2002/03/22 19:20:38 petere Exp $
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PostgreSQL documentation
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-->
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@@ -82,7 +82,7 @@ CREATE [ UNIQUE ] INDEX <replaceable class="parameter">index_name</replaceable>
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<variablelist>
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<varlistentry>
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<term>BTREE</term>
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<term><literal>BTREE</></term>
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<listitem>
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<para>
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an implementation of Lehman-Yao
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@@ -92,7 +92,7 @@ CREATE [ UNIQUE ] INDEX <replaceable class="parameter">index_name</replaceable>
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</varlistentry>
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<varlistentry>
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<term>RTREE</term>
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<term><literal>RTREE</></term>
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<listitem>
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<para>implements standard R-trees using Guttman's
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quadratic split algorithm.
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@@ -101,7 +101,7 @@ CREATE [ UNIQUE ] INDEX <replaceable class="parameter">index_name</replaceable>
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</varlistentry>
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<varlistentry>
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<term>HASH</term>
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<term><literal>HASH</></term>
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<listitem>
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<para>
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an implementation of Litwin's linear hashing.
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@@ -110,7 +110,7 @@ CREATE [ UNIQUE ] INDEX <replaceable class="parameter">index_name</replaceable>
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</varlistentry>
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<varlistentry>
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<term>GIST</term>
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<term><literal>GIST</></term>
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<listitem>
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<para>
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Generalized Index Search Trees.
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@@ -270,11 +270,11 @@ ERROR: Cannot create index: 'index_name' already exists.
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<para>
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All functions and operators used in an index definition must be
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<firstterm>cachable</>, that is, their results must depend only on
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<firstterm>cacheable</>, that is, their results must depend only on
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their input arguments and never on any outside influence (such as
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the contents of another table or the current time). This restriction
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ensures that the behavior of the index is well-defined. To use a
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user-defined function in an index, remember to mark the function cachable
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user-defined function in an index, remember to mark the function cacheable
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when you create it.
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</para>
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@@ -329,7 +329,7 @@ ERROR: Cannot create index: 'index_name' already exists.
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</para>
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<para>
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Currently, only the B-tree and gist access methods support multi-column
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Currently, only the B-tree and gist access methods support multicolumn
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indexes. Up to 16 keys may be specified by default (this limit
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can be altered when building
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<application>PostgreSQL</application>). Only B-tree currently supports
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