Which of the following is NOT a function of the Content Validator?

The Content Validator in Looker is primarily designed to ensure the integrity and accuracy of LookML models. It checks for various issues that could affect the performance and functionality of LookML objects, such as models, views, and fields.

Validating model references is a critical function because it helps ensure that all models used in the LookML are defined and correctly referenced. This prevents runtime errors when users attempt to explore data.

Showing errors for undefined field names is another essential aspect of the Content Validator's responsibilities. It verifies that all fields referenced in the LookML are defined and correctly spelled, which helps avoid confusion and errors during data analysis.

Similarly, checking for looks referencing non-existent Explores is crucial because it ensures that all visualizations and reports are based on valid data sources, thus maintaining the integrity of data insights.

In contrast, displaying all logs of user activity is not a function of the Content Validator. User activity logs pertain to tracking how users interact with the Looker environment, which is separate from the validation of LookML content. The Content Validator focuses on the structural and semantic integrity of the LookML itself rather than on user behavior or activity logs.