Limitations


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Data sources

VizQL Data Service (VDS) doesn’t support cube data sources.

VDS doesn’t support data sources that require multiple credentials.

Fields

VDS doesn’t support querying for bins, sets, groups, and combined fields. These field types are not returned as part of the Request data source metadata method.

VDS doesn’t support field domain aliasing.

Queries

VDS doesn’t support all features of Tableau services. For a full list of supported features, see Create a Query.

Licensing and data transfer

VDS is available for all license models. There’s a cap on usage determined by the number of Tableau Creator licenses assigned to a site. Each Creator license on a site raises the cap for the entire site by 100 queries per hour.

Response size

VDS has a response size limit of 1 GB. Any response size larger than that results in an error. To avoid such an error, we recommend that you apply a filter to the data to limit the response size.