Add stream-based prepared statemenet

[zhicwu]

Take format clause as hint for stream-based insertion.

try (PreparedStatement ps = conn.preparedStatement("insert into mytable(col1,col2,col3) format CSV")) {
  ps.setString(1, "1,2,3");
  ps.addBatch();
  ps.setBinaryStream(1, new ByteArrayInputStream("4,5,6".getBytes()));
  ps.addBatch();
  ps.setObject(1, new ClickHouseWriter() { // callback runs in a separate worker thread
      @Override
      public void write(ClickHouseOutputStream out) throws IOException {
          out.write("7,8,9".getBytes());
      }
  });
  ps.addBatch();
  ps.setObject(1, new File("/tmp/my.csv"));
  ps.addBatch();
  ps.executeBatch();
}

[Neyzoter]

How can i insert DateTime in stream?