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Composable Data Sources at Tableau Conference 2026 #tableau #tc26 #dataanalysis

Composable data sources could send shockwaves through Tableau, but two years on it still hasn't shipped, and that worries me.

Part ofTableau Conference 2026
  • Composable data sources were one of the headline features celebrated at Tableau Conference 2026, with potential to reshape the ecosystem
  • Tableau first discussed this feature in 2024, yet two years on it still hasn't shipped and may only appear in an upcoming beta
  • Competitors like Hex, Sigma, Omni and Golden have shipped much of the idealised AI-driven experience in a fraction of the time, raising questions about Tableau's shipping cadence

Composable data sources were, without a shadow of a doubt, one of the biggest things celebrated at Tableau Conference 2026. It’s a genuinely significant innovation, and I have little doubt it will create shockwaves across the Tableau ecosystem once it lands.

But here’s the thing I keep coming back to: Tableau was talking about this all the way back in 2024. It’s taken two years to get to the point where the feature is on the cusp of shipping, and even now it still isn’t actually out. It might appear in the next beta. We don’t know yet. What we do know is that we’re two years in, and it still hasn’t shipped.

That genuinely worries me about Tableau’s ability to ship features quickly and keep pace with the monthly cadence its competitors manage. Hex, Sigma, Omni, Golden, and others have built what is, in my mind, the majority of the idealized experience you’d want with AI, and they’ve done it in a fraction of the time. When the competition is moving that fast, a two-year wait for a flagship feature is a real cause for concern.