kevinjqliu commented on code in PR #60:
URL: https://github.com/apache/datafusion-site/pull/60#discussion_r2006136201
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content/blog/2025-03-20-parquet-pruning.md:
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@@ -0,0 +1,118 @@
+---
+layout: post
+title: Parquet Pruning in DataFusion: Read Only What Matters
+date: 2025-03-20
+author: Xiangpeng Hao
+categories: [performance]
+---
+
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+
+_Editor's Note: This blog was first published on [Xiangpeng Hao's blog].
Thanks to [InfluxData] for sponsoring this work as part of his PhD funding._
+
+[Xiangpeng Hao's blog]: https://blog.xiangpeng.systems/posts/parquet-to-arrow/
+[InfluxData]: https://www.influxdata.com/
+<hr/>
+
+[Apache Parquet] has become the industry standard for storing columnar data,
and reading Parquet efficiently -- especially from remote storage -- is crucial
for query performance.
+
+[Apache Parquet]: https://parquet.apache.org/
+
+[Apache DataFusion] implements advanced Parquet pruning techniques to
effectively read only the data that matters for a given query.
+
+[Apache DataFusion]: https://datafusion.apache.org/
+
+Achieving high performance adds complexity.
+This post provides an overview of the techniques used in DataFusion to
selectively read Parquet files.
+
+### The pipeline
+The diagram below illustrates the [Parquet reading pipeline] in DataFusion,
highlighting how data flows through various pruning stages before being
converted to Arrow format:
+
+[Parquet reading pipeline]:
https://docs.rs/datafusion/46.0.0/datafusion/datasource/physical_plan/parquet/source/struct.ParquetSource.html```
+
Review Comment:
should be
```
[Parquet reading pipeline]:
https://docs.rs/datafusion/46.0.0/datafusion/datasource/physical_plan/parquet/source/struct.ParquetSource.html
```
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