---
title: "Discussion on \"Inferring Schema from VARIANT Fields in Snowflake\" | Hashnode"
description: "Discussion on \"Inferring Schema from VARIANT Fields in Snowflake\". How to automatically discover and flatten JSON schema from VARIANT columns in Snowflake using recursive FLATTEN and TYPEOF, without manually writing extraction logic for every field."
url: "https://hashnode.com/posts/snowflake-variant-schema-inference/69666c4be105b01918530955"
---

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# [Inferring Schema from VARIANT Fields in Snowflake](https://anthu.dev/snowflake-variant-schema-inference?utm_source=hashnode&utm_medium=feed)

How to automatically discover and flatten JSON schema from VARIANT columns in Snowflake using recursive FLATTEN and TYPEOF, without manually writing extraction logic for every field.

Jan 13 · 5 min read · anthu.dev  
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-   [#snowflake](https://hashnode.com/tag/snowflake)
-   [#sql](https://hashnode.com/tag/sql)
-   [#data-engineering](https://hashnode.com/tag/data-engineering)
-   [#json](https://hashnode.com/tag/json)

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[Anton Huck](https://hashnode.com/@anthu)

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