Christian Henrik Reich – Medium

Christian Henrik Reich

Christian Henrik Reich

Spark SQL: Why the choice of language doesn’t impact performance

Exploring the language-agnostic power of Apache Spark SQL

3 min readMay 24, 2024

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Spark SQL: Why the choice of language doesn’t impact performance

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Christian Henrik Reich

Microsoft Fabric and Databricks: The low-level challenge of enforcing primary keys and foreign…

Key enforment requires performance

5 min readMay 18, 2024

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Microsoft Fabric and Databricks: The low-level challenge of enforcing primary keys and foreign…

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Christian Henrik Reich

Delta and Parquet: Integer, GUID/UUID or SHA256 as ID?

A study of keys

4 min readMay 6, 2024

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Delta and Parquet: Integer, GUID/UUID or SHA256 as ID?

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Christian Henrik Reich

Microsoft Fabric: Building Pseudo Identity Columns Without monotonically_increasing_id() in Spark

Using non integer keys instead of monotonically_increasing_id() is not the solution.

6 min readMay 1, 2024

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Microsoft Fabric: Building Pseudo Identity Columns Without monotonically_increasing_id() in Spark

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Christian Henrik Reich

Microsoft Fabric: Accessing CDM data (from Dataverse) from Spark

Motivation

3 min readFeb 7, 2024

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Microsoft Fabric: Accessing CDM data (from Dataverse) from Spark

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Christian Henrik Reich

Microsoft Fabric: Navigating Git and team collaboration

Applying the known to the unkown

4 min readJan 27, 2024

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Microsoft Fabric: Navigating Git and team collaboration

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Christian Henrik Reich

Microsoft Fabric: Setting up a Fabric Capacity in Azure and assigning it to a Fabric Workspace

Full end-to-end guide

4 min readDec 30, 2023

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Microsoft Fabric: Setting up a Fabric Capacity in Azure and assigning it to a Fabric Workspace

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Christian Henrik Reich

An easy setup of Visual Studio Code for running your Python Azure Functions on your M/arm64 Mac.

And for all other things not arm64 compatible…

5 min readSep 25, 2023

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An easy setup of Visual Studio Code for running your Python Azure Functions on your M/arm64 Mac.

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Christian Henrik Reich

Myth: Azure SQL Databases performs slower than other types of SQL Server installations

Myths should always be tested.

6 min readSep 3, 2023

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Myth: Azure SQL Databases performs slower than other types of SQL Server installations

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Christian Henrik Reich

Accessing Delta Lakes on Azure Data Lake with ordinary python

Not all queries requires a scale out compute cluster

3 min readJun 30, 2023

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Accessing Delta Lakes on Azure Data Lake with ordinary python

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Christian Henrik Reich

Christian Henrik Reich

Renaissance man @ twoday Kapacity, Renaissance man @ Mugato.com. Focusing on data architecture, ML/AI and backend dev, cloud and on-premise.

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