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doc: recommend use of GUC server_version_num for version checks 

Patch by Craig Ringer
This commit is contained in:
Bruce Momjian 2015-04-28 20:31:08 -04:00
parent f19d8f14c7
commit 5086dfceba
1 changed files with 7 additions and 2 deletions
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9
doc/src/sgml/func.sgml
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@ -14617,7 +14617,7 @@ SELECT * FROM pg_ls_dir('.') WITH ORDINALITY AS t(ls,n);
<row>
<entry><literal><function>version()</function></literal></entry>
<entry><type>text</type></entry>
<entry><productname>PostgreSQL</> version information</entry>
<entry><productname>PostgreSQL</> version information. See also <xref linkend="guc-server-version-num"> for a machine-readable version.</entry>
</row>
</tbody>
</tgroup>
@ -14804,7 +14804,12 @@ SET search_path TO <replaceable>schema</> <optional>, <replaceable>schema</>, ..
<para>
<function>version</function> returns a string describing the
<productname>PostgreSQL</productname> server's version.
<productname>PostgreSQL</productname> server's version. You can also
get this information from <xref linkend="guc-server-version"> or
for a machine-readable version, <xref linkend="guc-server-version-num">.
Software developers should use <literal>server_version_num</literal>
(available since 8.2) or <xref linkend="libpq-pqserverversion"> instead
of parsing the text version.
</para>
<indexterm>