</refsect1>
<refsect1>
<title>Description</title>
- <para>Threshold of free-connections in the pool before we disconnect a
- database rather than returning it to the pool. This is really a heuristic
-that should, on avg keep the free connections about this size.</para>
+ <para>Threshold of free-connections in the pool before we
+ disconnect a database rather than returning it to the pool. NIL for
+ no limit. This is really a heuristic that should, on avg keep the
+ free connections about this size.</para>
<note>
<para>This is not a hard limit, the number of connections in
the pool may exceed this value.</para>