# Announcing chDB 4: write Pandas, run ClickHouse, now on Hex

DevFeed: [Announcing chDB 4: write Pandas, run ClickHouse, now on Hex](<https://devfeed.tech/articles/announcing-chdb-4-write-pandas-run-clickhouse-now-on-hex-5037.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/chdb.4-0-pandas-hex>)

Author: Ryadh Dahimene; Auxten Wang

Published: 2026-03-11T10:52:16Z

Content type: release

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [pandas](<https://devfeed.tech/topics/pandas.md>), [Data Science](<https://devfeed.tech/topics/data-science.md>), [Optimization](<https://devfeed.tech/topics/optimization.md>), [parquet](<https://devfeed.tech/topics/parquet.md>), [API](<https://devfeed.tech/topics/api.md>), [Compression](<https://devfeed.tech/topics/compression.md>), [JIT](<https://devfeed.tech/topics/jit.md>), [Jupyter Notebook](<https://devfeed.tech/topics/jupyter-notebook.md>)

Tags: [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [code](<https://devfeed.tech/tags/code.md>), [data](<https://devfeed.tech/tags/data.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [jit](<https://devfeed.tech/tags/jit.md>), [learn](<https://devfeed.tech/tags/learn.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [parquet](<https://devfeed.tech/tags/parquet.md>)

## AI overview

chDB 4, launched with Hex integration, adds a Pandas-like DataStore API that executes familiar Pandas code on the in-process ClickHouse OLAP engine. The article explains how this approach addresses Pandas's eager execution and memory overhead by leveraging ClickHouse optimizations for analytical workflows.

## Source excerpt

Today, we're launching chDB 4 together with HexEX, where it is available along with the new Pandas-like DataStore API as a native integration