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Added patch by Bernd Helmle <bernd.helmle@credativ.de> that adds a low level

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function that returns the current transaction status.
This commit is contained in:
Michael Meskes
2009-09-18 13:13:32 +00:00
parent 20f7f019f9
commit dacaeff5ae
4 changed files with 46 additions and 5 deletions
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27
doc/src/sgml/ecpg.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.90 2009/07/11 21:15:32 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.91 2009/09/18 13:13:32 meskes Exp $ -->
<chapter id="ecpg">
<title><application>ECPG</application> - Embedded <acronym>SQL</acronym> in C</title>
@ -4753,6 +4753,31 @@ ECPG = ecpg
</note>
</listitem>
<listitem>
<para>
<function>ECPGget_PGconn(const char *<replaceable>connection_name</replaceable>)
</function> returns the library database connection handle identified by the given name.
If <replaceable>connection_name</replaceable> is set to <literal>NULL</literal>, the current
connection handle is returned. If no connection handle can be identified, the function returns
<literal>NULL</literal>. The returned connection handle can be used to call any other functions
from <application>libpq</application>, if necessary.
</para>
<note>
<para>
It is a bad idea to manipulate database connection handles made from <application>ecpg</application> directly
with <application>libpq</application> routines.
</para>
</note>
</listitem>
<listitem>
<para>
<function>ECPGtransactionStatus(const char *<replaceable>connection_name</replaceable>)</function>
returns the current transaction status of the given connection identified by <replaceable>connection_name</replaceable>.
See <xref linkend="libpq-status"> and libpq's <function>PQtransactionStatus()</function> for details about the returned status codes.
</para>
</listitem>
<listitem>
<para>
<function>ECPGstatus(int <replaceable>lineno</replaceable>,