also in HEAPextend: when GDKmallocmax fails, do not instantly crash the server with GDK_FATAL, but rather try to resort to mmap --- and in case that one fails as well, trigger and handle an exception that does not crash the server.
also in HEAPextend:
when GDKmallocmax fails, do not instantly crash the server with GDK_FATAL,
but rather try to resort to mmap --- and in case that one fails as well,
trigger and handle an exception that does not crash the server.

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