marked it in testing, should be in review.
Added a test to the regression suite. https://github.com/mariadb-corporation/mariadb-columnstore-regression-test/pull/174
PR for the engine mods: https://github.com/mariadb-corporation/mariadb-columnstore-engine/pull/1001
Build verified: 1.4.3-1 Azure build (20200220)
verified on a 10gb dbt3 databasse.
set infinidb_um_mem_limit=10;
set infinidb_ordered_only=ON;
repeated query 10 times
select count
from orders, lineitem where l_orderkey = o_orderkey;