Fixed memory leaks
Fixed write past end of buf
Fixed return expression can use uninitialized data
Removed unused variable
Fixed check for NULL column before using value
Fixed initialization to make valgrind happy
Fixed avoid memory fragmentation by allocating ssls only if there are arguments
Fixed valgrind warning about possible uninitialized elements
Fixed use allocated struct instead of putting stack addr in hash
Fixed check order
Fixed issue with order by / group by

Can happen w skip w no oby that q freed w hash fillers gbys etc and
these refd from result dcs, so no free, just make non-continuable
Fixed calculating hits from geo

When recalling the no of hits from geo, return no of hits, not its
inverse from dfe arity.  Do normal inx selection and sampling also
for the 1st in an update, else will get e.g. graph del plans wrong
Fixed start of ws op w time of last ck for hangup
Fixed IN does not count as eq for index path
Fixed wrong place for tb count restore