2. access pSql->subState.numOfSub in the same way

     2. protect destruction of pSubs etc within tscFreeSubobj with subState.mutex

[TD-11389]<fix>(query):pass sverion/tversion from vnode to client so that client can clear meta when its meta is older

not perform SDataRow/SKVRow convert anymore, utilize boundNullLen to facilitate the memRowType predict

specify child table name instead using ID in tag field.