Check ParameterSet for errors before calling Post
(cherry picked from commit 170158a641a792734881c500e6b5c9b2a3608686)
Remove the parenthesis
Merge pull request #1498 from VoltDB/ENG-6566-sqlcommand-latency

Remove the parenthesis
Deallocate the space after the query finishes
Merge pull request #1502 from VoltDB/ENG-6627-deallocate-early-for-release

Deallocate the space after the query finishes
ENG-6615 - Eliminate null varchar reverb in web studio.
Merge pull request #1509 from VoltDB/release-4.5.x

Release 4.5.x