> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/api/guides/output-module/the-output-module-query-language/differentiate-selected-properties-from-properties-required-in-a-filter-clause.md).

# Differentiate selected properties from properties required in a filter clause

To find the most recently created users, query the `CreatedOn` property and add a filter that uses the `greater than` operator. Adding the `CreatedOn` property to the tree also selects that property.

In cases where you only want the user ID and first and last name, tell the query engine not to return the `CreatedOn` property and use it in the filter.

{% hint style="info" %}
`CreatedOn` is a date expressed as the number of milliseconds since 1/1/1970.
{% endhint %}

{% tabs %}
{% tab title="JSON" %}

```json
{
  "ViewConfig": {
    "Resources": {
      "User": {
        "Id": { "name": "userId" },
        "FirstName": { "name": "firstName" },
        "LastName": { "name": "lastName" },
        "CreatedOn": { "name": "createdOn", "hidden": true },
        "Filter": { "Field": { "name": "createdOn", "operator": "GREATER", "value": "1440492290300" } }
      }
    }
  }
}
```

{% endtab %}

{% tab title="YAML" %}

```yaml
---
ViewConfig:
  Resources:
    User:
      Id:
        name: "userId"
      FirstName:
        name: "firstName"
      LastName:
        name: "lastName"
      CreatedOn:
        name: "createdOn"
        hidden: true
      Filter:
        Field:
          name: "createdOn"
          operator: "GREATER"
          value: "1440492290300"
```

{% endtab %}
{% endtabs %}

{% hint style="info" %}
Using `hidden: true` on a property removes that property from the results. The default value is false.
{% endhint %}

```json
{
    "view": {
        "User": [
            {
                "userId": "9546bbe9-7299-4a99-bfd2-d97f8256c201",
                "firstName": "Patrick",
                "lastName": "Star"
            },
            {
                "userId": "d9f3cc67-0db7-4aa5-a246-e83a62ea5c62",
                "firstName": "SpongeBob",
                "lastName": "SquarePants"
            }
        ]
    }
}
```


---

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