- fix array test that was essentially taking a weird guess at the primary key of a row based on other tests invoking around it
- fix array test that was essentially taking a weird guess
at the primary key of a row based on other tests invoking around it

(cherry picked from commit 7d70dfd412c05fd8349339da01b472bd3df02082)

zzzeek/sqlalchemy,j5int/sqlalchemy,wujuguang/sqlalchemy,sandan/sqlalchemy,sqlalchemy/sqlalchemy,graingert/sqlalchemy,bdupharm/sqlalchemy,bdupharm/sqlalchemy,wujuguang/sqlalchemy,graingert/sqlalchemy,robin900/sqlalchemy,robin900/sqlalchemy,sandan/sqlalchemy,monetate/sqlalchemy,monetate/sqlalchemy,j5int/sqlalchemy