---
title: "Discussion on \"CDC into a lakehouse: Change Data Feed, MERGE, and not reprocessing everything\" | Hashnode"
description: "Discussion on \"CDC into a lakehouse: Change Data Feed, MERGE, and not reprocessing everything\". The moment a pipeline has to reflect updates and deletes from a source, not just appends, full reloads stop scaling and append-only logic starts lying. Change data capture done properly means capturing what changed, applying it with MERGE,"
url: "https://hashnode.com/posts/cdc-into-a-lakehouse-change-data-feed-merge-and-not-reprocessing-everything/6a5384958228e8d3a4d2fbe0"
---

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# [CDC into a lakehouse: Change Data Feed, MERGE, and not reprocessing everything](https://sapotacorpvn.hashnode.dev/cdc-into-a-lakehouse-change-data-feed-merge-and-not-reprocessing-everything?utm_source=hashnode&utm_medium=feed)

The moment a pipeline has to reflect updates and deletes from a source, not just appends, full reloads stop scaling and append-only logic starts lying. Change data capture done properly means capturing what changed, applying it with MERGE,

Jul 12 · 7 min read · sapotacorpvn.hashnode.dev  
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-   [#data-engineering](https://hashnode.com/tag/data-engineering)
-   [#databricks](https://hashnode.com/tag/databricks)
-   [#delta-lake](https://hashnode.com/tag/delta-lake)
-   [#cdc](https://hashnode.com/tag/cdc)
-   [#change-data-feed](https://hashnode.com/tag/change-data-feed)

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