[TS-983]<feature>(connector,query,insert,other):create subtable to specific vgroups by _taos_meta_sync_table_name_taos_

[TS-1026](query,insert,other,connector,tools):fix app error of select from (select * from empty_stable) by set subquery command to retrieve empty results

[TS-2016](query,insert,other,connector,tools):fix app error of select from (select * from empty_stable) by set subquery command to retrieve empty results