shift focus from manipulating privs to relaying the data that actually changed (and add a test)
Merge remote-tracking branch 'XTUPLE/4_8_x' into i24834_crmacctPrivErrors
replace dummy metasql with pg-style query parameterization
Merge pull request #1988 from gilmoskowitz/i24834_crmacctPrivErrors

issue #24834, issue #24835 - don't grant privs to work around other problems