Adez017 commented on code in PR #96:
URL: https://github.com/apache/datafusion-site/pull/96#discussion_r2236406878
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content/blog/2025-07-25-async-scaler-udf.md:
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+---
+layout: post
+title: Async Scaler User defined Functions in DataFusion
+date: 2025-07-25
+author: Aditya Singh Rathore
+categories: [tutorial]
+---
+
+<!--
+{% comment %}
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+this work for additional information regarding copyright ownership.
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+-->
+
+Imagine writing SQL that can call APIs, interact with AI models, or fetch data
from external storage—all natively within your query. This isn't a dream
anymore. [Apache DataFusion] has just introduced **Asynchronous User Defined
Functions (Async UDFs)**, making it one of the **first SQL engines** to support
native asynchronous operations in query execution.
+
+## The Synchronous Limitation
+
+Traditional [User Defined Functions (UDFs)] in DataFusion (and most SQL
engines) are synchronous, limiting them to CPU-bound operations. While perfect
for mathematical calculations or string manipulations, they fall short when you
need to:
+
+- Make HTTP requests to external APIs (Wikipedia, OpenAI, REST services)
+- Fetch data from cloud object storage on demand
+- Perform I/O-heavy operations or long-running computations
+- Integrate with external databases or microservices
+
+These real-world scenarios often require **waiting** for external
resources—something synchronous functions simply can't handle efficiently.
+
+[User Defined Functions (UDFs)]:
https://datafusion.apache.org/python/user-guide/common-operations/udf-and-udfa.html
Review Comment:
sure , goo one @goldmedal
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