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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/set_session_auth.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/set_session_auth.sgml,v 1.15 2006/09/16 00:30:20 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/set_session_auth.sgml,v 1.16 2007/01/31 23:26:04 momjian Exp $ -->
<refentry id="SQL-SET-SESSION-AUTHORIZATION">
<refmeta>
<refentrytitle id="sql-set-session-authorization-title">SET SESSION AUTHORIZATION</refentrytitle>
@ -28,7 +28,7 @@ RESET SESSION AUTHORIZATION
<para>
This command sets the session user identifier and the current user
identifier of the current SQL-session context to be <replaceable
class="parameter">username</replaceable>. The user name may be
class="parameter">username</replaceable>. The user name can be
written as either an identifier or a string literal. Using this
command, it is possible, for example, to temporarily become an
unprivileged user and later switch back to being a superuser.
@ -38,14 +38,14 @@ RESET SESSION AUTHORIZATION
The session user identifier is initially set to be the (possibly
authenticated) user name provided by the client. The current user
identifier is normally equal to the session user identifier, but
may change temporarily in the context of <quote>setuid</quote>
might change temporarily in the context of <quote>setuid</quote>
functions and similar mechanisms; it can also be changed by
<xref linkend="sql-set-role" endterm="sql-set-role-title">.
The current user identifier is relevant for permission checking.
</para>
<para>
The session user identifier may be changed only if the initial session
The session user identifier can be changed only if the initial session
user (the <firstterm>authenticated user</firstterm>) had the
superuser privilege. Otherwise, the command is accepted only if it
specifies the authenticated user name.
@ -60,7 +60,7 @@ RESET SESSION AUTHORIZATION
<para>
The <literal>DEFAULT</> and <literal>RESET</> forms reset the session
and current user identifiers to be the originally authenticated user
name. These forms may be executed by any user.
name. These forms can be executed by any user.
</para>
</refsect1>