Correct overstatement in locking docs: we said ExclusiveLock is never
taken automatically, but this is only true with respect to user tables.
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@ -1,5 +1,5 @@
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<!--
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.46 2004/12/23 23:07:38 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.47 2005/02/26 18:37:17 tgl Exp $
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-->
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-->
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<chapter id="mvcc">
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<chapter id="mvcc">
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@ -677,8 +677,9 @@ SELECT SUM(value) FROM mytab WHERE class = 2;
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</para>
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</para>
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<para>
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<para>
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This lock mode is not automatically acquired by any
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This lock mode is not automatically acquired on user tables by any
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<productname>PostgreSQL</productname> command.
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<productname>PostgreSQL</productname> command. However it is
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acquired on certain system catalogs in some operations.
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</para>
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</para>
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</listitem>
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</listitem>
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</varlistentry>
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</varlistentry>
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