calculate the memRowType precisely when NonVarType exists as to minimize the memory copy and to avoid of sorting for ordered input

[td-11899]STMT use now as timestamp cause "Timestamp out of range" error

[TD-11959]<CI>clean taosadapter progress

[TS-844]<test>show variables include httpDbNameMandatory

[TS-834]<feature>: directive 'httpDbNameMandatory' can be shown

[TS-832]<feature>:check and output drop tables by specific errNo

[TS-810][grafana]data display issue

Hotfix/ts 787: release lock during write socket

[TS-795]<test>: add test case for union all

[TS-784]<fix>: make sure keep1<=keep2<=keep in tsdb

[TD-11584]invalid sql can be executed successfully