Simplify list comparator but use existing helper for stringify
Clarifying comment
No need for additional sorts
Use already_ordered for queries pg-select with ORDER BY
No need for already_ordered in group-concat
Remove unrelated ORDER BY in test-identity
Revert now-unnecessary test-in changes
Remove dead class
YamlTester rejects custom tags for sorting in output. Update IT.
test-pg-select duplicates the start of test-select exactly
Remove unnecessary ORDER BY and update all Statement with ORDER BY to use output_already_ordered
Small tweak for random cost test
Merge pull request #1 from nathanlws/yamltester-output-fix-tweaks

Minor cleanups