Re: Properly initialize negative/empty cache entries in relfilenodemap

> Andres Freund wrote:
>> Hi,
>>
>> Thanks to the valgrind instrumentation I found a small oversight in the
>> relfilenodemap patch which is fixed in the attached patch.

Great!  Could anybody find the root cause for the following memory leak 
problem, and if possible, fix this?

http://www.postgresql.org/message-id/214653D8DF574BFEAA6ED53E545E99E4@maumau

Heiki helped to solve this and found that pg_statistic entries are left in 
CacheMemoryContext, but we have no idea where and how they are created and 
left.  This seems difficult to me.

Regards
MauMau