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Wording cleanup for error messages. Also change can't -> cannot.
Standard English uses "may", "can", and "might" in different ways:
may - permission, "You may borrow my rake."
can - ability, "I can lift that log."
might - possibility, "It might rain today."
Unfortunately, in conversational English, their use is often mixed, as
in, "You may use this variable to do X", when in fact, "can" is a better
choice. Similarly, "It may crash" is better stated, "It might crash".
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@@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/notify.sgml,v 1.29 2007/01/31 23:26:04 momjian Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/notify.sgml,v 1.30 2007/02/01 19:10:24 momjian Exp $
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PostgreSQL documentation
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-->
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@@ -64,7 +64,7 @@ NOTIFY <replaceable class="PARAMETER">name</replaceable>
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to a particular table, a useful programming technique is to put the
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<command>NOTIFY</command> in a rule that is triggered by table updates.
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In this way, notification happens automatically when the table is changed,
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and the application programmer can't accidentally forget to do it.
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and the application programmer cannot accidentally forget to do it.
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</para>
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<para>
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