ndb - bug#25562 use byte-size max_data_length() when setting blob part size

      col.setType(NDBCOL::Text);

      col.setCharset(cs);

    }

    // Use "<=" even if "<" is the exact condition

    if (field->max_length() <= (1 << 8))

    {

      Field_blob *field_blob= (Field_blob *)field;

      /*

       * max_data_length is 2^8-1, 2^16-1, 2^24-1 for tiny, blob, medium.

       * Tinyblob gets no blob parts.  The other cases are just a crude

       * way to control part size and striping.

       *

       * In mysql blob(256) is promoted to blob(65535) so it does not

       * in fact fit "inline" in NDB.

       */

      if (field_blob->max_data_length() < (1 << 8))

        goto mysql_type_tiny_blob;

    else if (field->max_length() <= (1 << 16))

      else if (field_blob->max_data_length() < (1 << 16))

      {

        col.setInlineSize(256);

        col.setPartSize(2000);

        col.setStripeSize(16);

      }

    else if (field->max_length() <= (1 << 24))

      else if (field_blob->max_data_length() < (1 << 24))

        goto mysql_type_medium_blob;

      else

        goto mysql_type_long_blob;

    }

    break;

  mysql_type_medium_blob:

  case MYSQL_TYPE_MEDIUM_BLOB: