Tag: Lakehouse

All the articles with the tag "Lakehouse".

• Delta Lake Schema Evolution Explained with Real Examples

  8 Oct, 2026

  Schema enforcement vs. evolution in Delta Lake: mergeSchema, overwriteSchema, MERGE evolution, column mapping for renames and drops, and type widening.

• Small Files Problem in Delta Lake: Detection and Compaction Strategy

  8 Oct, 2026

  How to detect small files in a Delta table from the transaction log, and a compaction strategy using OPTIMIZE, optimized writes and auto compaction.