Blogg
Jeg skriver om data engineering, kode og verktøy.
Data Engineering
Spark Partitioning — The Difference Between a 3-Minute and 3-Hour Job
Understanding shuffle partitions, data skew, and when to repartition versus coalesce.
11. sep. 20244 min lesetid
Data Engineering
dbt Testing That Actually Catches Bugs
Moving beyond not_null and unique to tests that reflect your actual data contracts.
18. juni 20243 min lesetid
Data Engineering · Databricks
The Medallion Architecture — Structuring Your Delta Lake for Scale
How to design a bronze, silver, gold lakehouse that stays maintainable as your data and team grow.
4. mars 20243 min lesetid