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Update reference documentation on may/can/might:

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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".
This commit is contained in:
Bruce Momjian
2007-01-31 23:26:05 +00:00
parent bc799fab2b
commit e81c138e18
71 changed files with 301 additions and 301 deletions
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10
doc/src/sgml/ref/create_rule.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/create_rule.sgml,v 1.48 2006/09/16 00:30:17 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/create_rule.sgml,v 1.49 2007/01/31 23:26:03 momjian Exp $
PostgreSQL documentation
-->
@@ -136,9 +136,9 @@ CREATE [ OR REPLACE ] RULE <replaceable class="parameter">name</replaceable> AS
<listitem>
<para>
Any <acronym>SQL</acronym> conditional expression (returning
<type>boolean</type>). The condition expression may not refer
<type>boolean</type>). The condition expression cannot refer
to any tables except <literal>NEW</> and <literal>OLD</>, and
may not contain aggregate functions.
can not contain aggregate functions.
</para>
</listitem>
</varlistentry>
@@ -186,7 +186,7 @@ CREATE [ OR REPLACE ] RULE <replaceable class="parameter">name</replaceable> AS
<para>
Within <replaceable class="parameter">condition</replaceable> and
<replaceable class="parameter">command</replaceable>, the special
table names <literal>NEW</literal> and <literal>OLD</literal> may
table names <literal>NEW</literal> and <literal>OLD</literal> can
be used to refer to values in the referenced table.
<literal>NEW</literal> is valid in <literal>ON INSERT</literal> and
<literal>ON UPDATE</literal> rules to refer to the new row being
@@ -257,7 +257,7 @@ UPDATE mytable SET name = 'foo' WHERE id = 42;
one <command>NOTIFY</command> event will be sent during the
<command>UPDATE</command>, whether or not there are any rows that
match the condition <literal>id = 42</literal>. This is an
implementation restriction that may be fixed in future releases.
implementation restriction that might be fixed in future releases.
</para>
</refsect1>