Direct Lakeが黙るとき — Power BI Semantic Models

Show Notes

Direct Lakeが黙るとき

Episode 27 • 2026-07-03 Duration: 12:39

Direct Lakeは更新不要でVertiPaqの速度をデータレイク規模で実現すると謳います。しかしその障害モードは沈黙です。壊れるのではなく、静かに劣化します。フレーミング、トランスコーディング、そして誰も語らないフォールバックのコストを分解します。

What we discuss

• How it actually works underneath the abstraction
• A real Reddit/Microsoft Q&A question unpacked
• Where the obvious answer breaks
• The concrete recommended architecture
• The pattern we keep seeing in the field
• F-SKU realism — what this actually costs
• When the rejected approach is actually right
• Risks of the recommended path
• The architectural principle to take home

Resources

• Power BI semantic models in Microsoft Fabric
• Semantic models in the Power BI service
• Store data in Microsoft Fabric
• Direct Lake overview
• Semantic model modes
• New name for Power BI datasets
• Develop Direct Lake semantic models
• Direct Lake in web modeling
• How Direct Lake works
• Understand Direct Lake query performance
• Analyze query processing for Direct Lake semantic models
• Cross-workload table maintenance and optimization
• Optimize Delta Lake tables with V-Order
• Dimensional modeling in Fabric Warehouse
• IDEAS journey to a modern data platform

About the show

AI-generated voices. Matthias — cloned voice. Fabia — designed AI co-host. See Matthias live on YouTube (Fabric Friday), at his meetups, and at conferences like FabCon.

Hosted by Matthias Falland — Microsoft Data Platform MVP and community architect behind the Fabric Periodic Table. New episodes every Friday.

Submit your case

Have an architecture decision you are wrestling with? DM Matthias on LinkedIn — find him as Matthias Falland. Three to five sentences about the decision, your team size, and your current stack. We anonymize before airing.

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このポッドキャストは AI によって生成されています。どちらの音声も合成です。Matthias はクローン音声、Fabia は設計された AI 共同ホストです。

Brand design based on fabricperiodictable.com.

What is Microsoft Fabric Architecture Podcast (日本語)?

Microsoft Fabric のア���キテクチャ意思決定。匿名化された実際の顧客シナリオ、コストのリアリズム、反論を含む。Fabric Friday の録画に合わせた週刊エピソード。AIにより生成。