Hi Tom,
Per Coverity.
The SearchSysCache1 allows return NULL and at function AlterStatistics,
has one mistake, lack of, check of return, which enables a dereference NULL pointer,
at function heap_modify_tuple.
While there is room for improvement.
Avoid calling SearchSysCache1 and table_open if the user "is not the owner of the existing statistics object".
regards,
Ranier Vilela