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Convert SGML IDs to lower case
IDs in SGML are case insensitive, and we have accumulated a mix of upper and lower case IDs, including different variants of the same ID. In XML, these will be case sensitive, so we need to fix up those differences. Going to all lower case seems most straightforward, and the current build process already makes all anchors and lower case anyway during the SGML->XML conversion, so this doesn't create any difference in the output right now. A future XML-only build process would, however, maintain any mixed case ID spellings in the output, so that is another reason to clean this up beforehand. Author: Alexander Lakhin <exclusion@gmail.com>
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@ -36,7 +36,7 @@
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In addition to the typical B-tree search operators, <filename>btree_gist</filename>
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also provides index support for <literal><></literal> (<quote>not
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equals</quote>). This may be useful in combination with an
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<link linkend="SQL-CREATETABLE-EXCLUDE">exclusion constraint</link>,
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<link linkend="sql-createtable-exclude">exclusion constraint</link>,
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as described below.
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</para>
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@ -70,7 +70,7 @@ SELECT *, a <-> 42 AS dist FROM test ORDER BY a <-> 42 LIMIT 10;
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</programlisting>
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<para>
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Use an <link linkend="SQL-CREATETABLE-EXCLUDE">exclusion
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Use an <link linkend="sql-createtable-exclude">exclusion
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constraint</link> to enforce the rule that a cage at a zoo
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can contain only one kind of animal:
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</para>
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