code: public void dropSchema()
      {
          if (operation != null && operation.equalsIgnoreCase("create-drop"))
          {
              for (TableInfo tableInfo : tableInfos)
              {
                  if (tableInfo.getLobColumnInfo().isEmpty())
                  {
                      coll = db.getCollection(tableInfo.getTableName());
                      coll.drop();
                      KunderaCoreUtils.printQuery("Drop collection:" + tableInfo.getTableName(), showQuery);
                  }
                  else
                  {
                      coll = db.getCollection(tableInfo.getTableName() + MongoDBUtils.FILES);
                      coll.drop();
                      KunderaCoreUtils.printQuery("Drop collection:" + tableInfo.getTableName() + MongoDBUtils.FILES,
                              showQuery);
                      coll = db.getCollection(tableInfo.getTableName() + MongoDBUtils.CHUNKS);
                      coll.drop();
                      KunderaCoreUtils.printQuery("Drop collection:" + tableInfo.getTableName() + MongoDBUtils.CHUNKS,
                              showQuery);
                  }
              }
          }
          db = null;
      }
docs: drop schema method drop the table