Re: boolean states

Josh Kupershmidt wrote:
> On Mon, May 9, 2011 at 9:04 PM, Bruce Momjian <bruce@momjian.us> wrote:
> > Attached patch applied to HEAD and 9.0.X.
>
> The patch you attached looks like it's a fix for the -bugs thread
> about "inappropriate reference to boolean logic", not the complaint
> raised in this thread.

I see what you mean.  I have applied the attached doc patch to HEAD.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +
diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
new file mode 100644
index bc1ec3f..ab8eb2d
*** a/doc/src/sgml/datatype.sgml
--- b/doc/src/sgml/datatype.sgml
*************** P <optional> <replaceable>years</>-<repl
*** 2784,2792 ****
      <productname>PostgreSQL</productname> provides the
      standard <acronym>SQL</acronym> type <type>boolean</type>;
      see <xref linkend="datatype-boolean-table">.
!     The <type>boolean</type> type can have one of only two states:
!     <quote>true</quote> or <quote>false</quote>.  A third state,
!     <quote>unknown</quote>, is represented by the
      <acronym>SQL</acronym> null value.
     </para>

--- 2784,2792 ----
      <productname>PostgreSQL</productname> provides the
      standard <acronym>SQL</acronym> type <type>boolean</type>;
      see <xref linkend="datatype-boolean-table">.
!     The <type>boolean</type> type can have several states:
!     <quote>true</quote>, <quote>false</quote>, and a third state,
!     <quote>unknown</quote>, which is represented by the
      <acronym>SQL</acronym> null value.
     </para>