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Alteryx 2019.4 introduced support for Tableau's .hyper extract format, however it only supports single table extracts. .hyper files have supported multiple tables since mid-2018, so I'd like Alteryx to support that as well.
Here are a couple of current use cases (as of February 2020) and one future one.
- We have malaria incidence data that is joined to multiple sets of spatial data. Doing all of the joins in the extract creation process to build a single table extract is not possible due to processing time & memory constraints, so we use a multiple-table extract.
- There are multiple ways to do row level security in Tableau. A common way is to have separate tables for the data & the entitlements and then use calculations at run-time to filter the data, and for that having a multiple table extract is ideal.
- In 2020 Tableau will be introducing new data modeling capabilities (this was first demoed at the 2018 Tableau Conference, there were sessions on it at the 2019 Tableau Conference) where one goal is vastly improved performance for large fact table to fact table joins where previously we'd have to do much more data preparation. This is another case where multiple table extracts would be useful.
I've attached a sample Hyper file with two tables in the extract (it's zipped because the Community site doesn't accept .hyper files).