simplify microoptimization without changing its current behavior
Merge branch 'master' into ENG-6090-subquery-test-and-fix
Merge branch 'master' into ENG-6090-subquery-test-and-fix
Merge branch 'master' into ENG-6090-subquery-test-and-fix
Merge branch 'master' into ENG-6090-subquery-test-and-fix
more sqlcoverage control
ENG-5899 Empty rejoin test passes.
ENG-5899 Fix unit tests.
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-5899
ENG-5899 Fix unit test more betterer.
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-5899
Merge branch 'master' into refactor-simplify-microoptimization
ENG-5899 Review changes and rejoin fix.
ENG-5899 Untested review responses, join fix, and merge.

Merge branch 'master' of github.com:VoltDB/voltdb into ENG-5899

Conflicts:
	src/frontend/org/voltdb/iv2/RejoinProducer.java
Avoid some parser/planner memory pooling, and some planner wheel spinning.
Merge branch 'master' into refactor-simplify-microoptimization
ENG-5899 Fix ant junitclass when testobjects doesn't exist.
Merge branch 'master' into ENG-6090-subquery-test-and-fix
Merge remote-tracking branch 'origin/ENG-6221-orderbyindexedselfjoin' into ENG-6090-subquery-test-and-fix
Merge branch 'fix-order-by-test' into ENG-6090-subquery-test-and-fix