Describe bug

Re a bug in 18c 'describe'

Inspired by this Jonathan Lewis blog:

https://jonathanlewis.wordpress.com/2019/04/08/describe-upgrade/

Detailed Exe Profile

To use NYT Profiler:

export NYTPROF=trace=2:start=init:file=/tmp/nytprof.out

see nyt.sh

get libcache and rowcache stats

stats.sh

Collects stats from an 18c and 19c db, both with/without use of 'describe'

stat-totals.sh

get the totals of the stats from log files