Note: This is the developer preview release of the VizQL Data Service. This release is intended to offer developers early access to unreleased features.
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The following are known issues in the developer preview of VizQL Data Service (VDS).
If you modify the data source in Tableau Cloud, you might not see the changes in your VDS response right away. Also, there’s no way to clear the cache.
Querying bins returns the wrong data (like Profit (bins) ) field.
VDS doesn’t support data sources that require multiple embedded credentials.
You must use the official field name returned from the metadata-api for custom calculations. Referring to them as their given alias doesn’t work. For example, in Superstore Datasource, the Profit Ratio field must be referred to as Calculation_1368249927221915648.