Fix for one of the problems in bug 3323. Allocate a heap from the heap cache when extending a heap from memory to memory map.
Fix for one of the problems in bug 3323.
Allocate a heap from the heap cache when extending a heap from memory
to memory map.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb