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Document new libpq connection statuses for target_session_attrs.

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I didn't realize these would ever be visible to clients, but Michael
figured out that it can happen when using asynchronous interfaces
such as PQconnectPoll.

Michael Paquier
This commit is contained in:
Robert Haas 2017-02-15 11:03:41 -05:00
parent 1de0a4e00e
commit 1330a7d726
1 changed files with 18 additions and 0 deletions
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18
doc/src/sgml/libpq.sgml
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@ -410,6 +410,24 @@ PostgresPollingStatusType PQconnectPoll(PGconn *conn);
</para>
</listitem>
</varlistentry>
<varlistentry id="libpq-connection-check-writable">
<term><symbol>CONNECTION_CHECK_WRITABLE</symbol></term>
<listitem>
<para>
Checking if connection is able to handle write transactions.
</para>
</listitem>
</varlistentry>
<varlistentry id="libpq-connection-consume">
<term><symbol>CONNECTION_CONSUME</symbol></term>
<listitem>
<para>
Consuming any remaining response messages on connection.
</para>
</listitem>
</varlistentry>
</variablelist>
Note that, although these constants will remain (in order to maintain