# General

{% content-ref url="general/group-by-columns" %}
[group-by-columns](https://docs.kuwala.io/transformation-catalog/general/group-by-columns)
{% endcontent-ref %}

{% content-ref url="general/is-false" %}
[is-false](https://docs.kuwala.io/transformation-catalog/general/is-false)
{% endcontent-ref %}

{% content-ref url="general/is-not-null" %}
[is-not-null](https://docs.kuwala.io/transformation-catalog/general/is-not-null)
{% endcontent-ref %}

{% content-ref url="general/is-true" %}
[is-true](https://docs.kuwala.io/transformation-catalog/general/is-true)
{% endcontent-ref %}

{% content-ref url="general/remove-duplicates" %}
[remove-duplicates](https://docs.kuwala.io/transformation-catalog/general/remove-duplicates)
{% endcontent-ref %}

{% content-ref url="general/remove-null" %}
[remove-null](https://docs.kuwala.io/transformation-catalog/general/remove-null)
{% endcontent-ref %}

{% content-ref url="general/replace-null" %}
[replace-null](https://docs.kuwala.io/transformation-catalog/general/replace-null)
{% endcontent-ref %}