Help with disappeared column

Updated Nov 5, 2024 by Jocelyn

Good morning,

I am trying to use several join operators to be able to make 1 to n relationships from several tables created previously.

Image: https://us.v-cdn.net/6030995/uploads/editor/45/kj2icq7jvy36.png

That join seems to have only the new table Accessibility and the previously selected attributes.

Image: https://us.v-cdn.net/6030995/uploads/editor/m4/nlmtqrbnp3hv.png

The weird thing is that I have not selected Id_Marcas, anywhere and it appears alone.

Image: https://us.v-cdn.net/6030995/uploads/editor/4l/rf2devkj63x2.png

Where I have the box Rename, I have renamed id to id_marcas, as I am going to do many joins afterward. I don't get the point of reusing the column as there are different joins with different attributes and tables.

Thank you

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Altair Community Member

Updated Apr 25, 2021 by Caperez

Hi, Egun on @OierMk,

I recommend you to verify the output of Operators using a breakpoint after.

Can you share your process in order to reproduce the error?

Best

New Altair Community Member

Aupa,

these are the images of the process with the breakpoints.

Original process

After the replacing the null or inexistent values

The "marcas" table after "Id" column changes its name to "Id_Marcas"

The result of the first join

Result after selecting the valid attributes

The result after the 2nd join

Where has the id of accessibility gone?

Image: https://us.v-cdn.net/6030995/uploads/editor/v7/etez19hzalpm.png

Image: https://us.v-cdn.net/6030995/uploads/editor/mn/uzggpue6qa1n.png

Composition of the join

Thank you soo much

Altair Community Member

Aupa @OierMk,

Please read this thread to learn how to share your process. Is the easy way to help you.
How to Post Questions on the RapidMiner User Community — RapidMiner Community

for the pictures I suppose that your Attributes are not the same type.

Check if both attributes are real, or polynominal, etc.

Best

New Altair Community Member

Oh sorry, it has been my first post, I didn't know it. I think that all attributes are the same type.

I leave the code here

<?xml version="1.0" encoding="UTF-8"?>

New Altair Community Member

<?xml version="1.0" encoding="UTF-8"?><process version="9.9.000">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="9.9.000" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="SYSTEM"/>
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Marcas" width="90" x="45" y="136">
        <parameter key="repository_entry" value="Marcas"/>
      </operator>
      <operator activated="true" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Dataset - ETL" width="90" x="45" y="34">
        <parameter key="repository_entry" value="Dataset - ETL"/>
      </operator>
      <operator activated="true" class="replace_missing_values" compatibility="9.9.000" expanded="true" height="103" name="Replace Missing Values" width="90" x="179" y="34">
        <parameter key="return_preprocessing_model" value="false"/>
        <parameter key="create_view" value="false"/>
        <parameter key="attribute_filter_type" value="all"/>
        <parameter key="attribute" value="Descripción del Icono de Accesibilidad"/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="true"/>
        <parameter key="default" value="value"/>
        <list key="columns"/>
        <parameter key="replenishment_value" value="0"/>
      </operator>
      <operator activated="true" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Accesibilidad" width="90" x="447" y="187">
        <parameter key="repository_entry" value="Accesibilidad"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Calidad" width="90" x="916" y="442">
        <parameter key="repository_entry" value="Calidad"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Capacidad" width="90" x="1050" y="493">
        <parameter key="repository_entry" value="Capacidad"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve CPostal" width="90" x="1184" y="544">
        <parameter key="repository_entry" value="CPostal"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Municipio" width="90" x="1318" y="595">
        <parameter key="repository_entry" value="Municipio"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Plantilla" width="90" x="1452" y="646">
        <parameter key="repository_entry" value="Plantilla"/>
      </operator>
      <operator activated="false" class="retrieve" compatibility="9.9.000" expanded="true" height="68" name="Retrieve Tipo" width="90" x="1586" y="697">
        <parameter key="repository_entry" value="Tipo"/>
      </operator>
      <operator activated="true" class="blending:rename" compatibility="9.9.000" expanded="true" height="82" name="Rename" width="90" x="179" y="136">
        <list key="rename attributes">
          <parameter key="id" value="Id_Marcas"/>
        </list>
        <parameter key="from_attribute" value=""/>
        <parameter key="to_attribute" value=""/>
      </operator>
      <operator activated="true" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join" width="90" x="313" y="85">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="inner"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Marcas" value="Marcas"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="true" breakpoints="after" class="select_attributes" compatibility="9.9.000" expanded="true" height="82" name="Select Attributes" width="90" x="447" y="85">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value="Id_Local|Id_Marcas|Marcas|Descripción del Icono de Accesibilidad"/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
      </operator>
      <operator activated="true" breakpoints="after" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (2)" width="90" x="581" y="136">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="inner"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Descripción del Icono de Accesibilidad" value="Descripción del Icono de Accesibilidad"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" breakpoints="before" class="blending:rename" compatibility="9.9.000" expanded="true" height="82" name="Rename (2)" width="90" x="782" y="340">
        <list key="rename attributes">
          <parameter key="id" value="Id_Accesibilidad"/>
        </list>
        <parameter key="from_attribute" value=""/>
        <parameter key="to_attribute" value=""/>
      </operator>
      <operator activated="false" class="select_attributes" compatibility="9.9.000" expanded="true" height="82" name="Select Attributes (2)" width="90" x="916" y="340">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value="Capacidad|Código municipio|Código país|Código provincia|Descripción|Descripción del Icono de Calidad|Dirección|Email|Id_Calidad|Id_Local|Id_Marcas|LATWGS84|Localidad|LONWGS84|Municipio|Nombre|País|Postal Code|Provincia|Teléfono|Tipo de Plantilla|Tipo de Restauración|WEB"/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
      </operator>
      <operator activated="false" breakpoints="after" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (3)" width="90" x="1050" y="391">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Descripción del Icono de Calidad" value="Descripción del Icono de Calidad"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (4)" width="90" x="1184" y="442">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Capacidad" value="Capacidad"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (5)" width="90" x="1318" y="493">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Postal Code" value="Postal Code"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (6)" width="90" x="1452" y="544">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Municipio" value="Municipio"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (7)" width="90" x="1586" y="595">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Tipo de Plantilla" value="Tipo de Plantilla"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="false" class="concurrency:join" compatibility="9.9.000" expanded="true" height="82" name="Join (8)" width="90" x="1720" y="646">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="false"/>
        <list key="key_attributes">
          <parameter key="Tipo de Restauración" value="Tipo de Restauración"/>
        </list>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <connect from_op="Retrieve Marcas" from_port="output" to_op="Rename" to_port="example set input"/>
      <connect from_op="Retrieve Dataset - ETL" from_port="output" to_op="Replace Missing Values" to_port="example set input"/>
      <connect from_op="Replace Missing Values" from_port="example set output" to_op="Join" to_port="left"/>
      <connect from_op="Retrieve Accesibilidad" from_port="output" to_op="Join (2)" to_port="right"/>
      <connect from_op="Retrieve Calidad" from_port="output" to_op="Join (3)" to_port="right"/>
      <connect from_op="Retrieve Capacidad" from_port="output" to_op="Join (4)" to_port="right"/>
      <connect from_op="Retrieve CPostal" from_port="output" to_op="Join (5)" to_port="right"/>
      <connect from_op="Retrieve Municipio" from_port="output" to_op="Join (6)" to_port="right"/>
      <connect from_op="Retrieve Plantilla" from_port="output" to_op="Join (7)" to_port="right"/>
      <connect from_op="Retrieve Tipo" from_port="output" to_op="Join (8)" to_port="right"/>
      <connect from_op="Rename" from_port="example set output" to_op="Join" to_port="right"/>
      <connect from_op="Join" from_port="join" to_op="Select Attributes" to_port="example set input"/>
      <connect from_op="Select Attributes" from_port="example set output" to_op="Join (2)" to_port="left"/>
      <connect from_op="Join (2)" from_port="join" to_port="result 1"/>
      <connect from_op="Rename (2)" from_port="example set output" to_op="Select Attributes (2)" to_port="example set input"/>
      <connect from_op="Select Attributes (2)" from_port="example set output" to_op="Join (3)" to_port="left"/>
      <connect from_op="Join (3)" from_port="join" to_op="Join (4)" to_port="left"/>
      <connect from_op="Join (4)" from_port="join" to_op="Join (5)" to_port="left"/>
      <connect from_op="Join (5)" from_port="join" to_op="Join (6)" to_port="left"/>
      <connect from_op="Join (6)" from_port="join" to_op="Join (7)" to_port="left"/>
      <connect from_op="Join (7)" from_port="join" to_op="Join (8)" to_port="left"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

Altair Community Member

Well done @OierMk,
Can you share a sample of your datasets?
Best

New Altair Community Member

Thank you @ceaperez. I am uploading the files on this post

Accesibilidad.xlsx

Marcas.xlsx

Dataset - ETL copy.xlsx

Altair Community Member

Updated Apr 25, 2021 by Caperez

Hi @OierMk,
Please remove the "label" role to the id_Marcas Attribute. in some place you change the role of this attribute.
That's the why it appear, even if you don't select it.

Best

New Altair Community Member

Hi @ceaperez I know what you mean, but doing so, I will have only 1 column with the id of every join, i would be rewriting the same column instead of creating new ones in each join, which is what i want.

Altair Community Member

Hi @OierMk,
Now i'm confused. that is not the original question. If you want to preserve both attributes in in a join operator you need to check the option "keep the both join attributes" That's what you need?

Best

New Altair Community Member

I want to do a simple join as in sql, I am trying to normalize the data until I get the 3rd normal form. To do so, I am taking all the data from excel and I have splitted all the possible tables following the rules. Now, I am trying to link all the data of the different tables into the main table with all the attributes. For so I need to get all the primary keys, the ones I am trying to add to the main table with the joins.

Did I make myself clearer?

Thank you for your time @ceaperez sorry for the misunderstanding.

Altair Community Member

Hi @OierMk,

Don't worry. I'm here to help.

You are almost there. In your datasets you don't have any attribute named id accesibilidad.

Best

New Altair Community Member

Hi @ceaperez

I know, i have an attribute called id. Even so, i change the name with a box called rename attribute to try that way not to overwrite the data i have. The point is that i don't know what is happening because the join doesn't give me the new id joined at the second join.

Altair Community Member