andygrove commented on code in PR #214:
URL: https://github.com/apache/datafusion-site/pull/214#discussion_r4412980619
##########
content/blog/2026-10-25-comet-nested-tpch.md:
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@@ -0,0 +1,210 @@
+---
+layout: post
+title: Announcing a derived TPC-H, a benchmark for nested data in Apache
DataFusion Comet
+date: 2026-10-25
+author: pmc
+categories: [performance, benchmarks]
+---
+
+<!--
+{% 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 %}
+-->
+
+[TOC]
+
+Query engines get fast at what their benchmarks measure, and the most widely
used analytical benchmarks contain no nested data. Apache DataFusion Comet now
runs all 22 queries of a nested TPC-H at scale factor 1000 (1 TB) in 777 s,
against 1,515 s for Spark.
+
+<img
+src="../images/comet-nested-tpch/intro-total.svg"
Review Comment:
These paths will need fixing before we publish.
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