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  <title>xiaogang&#39;s blog</title>
  <link>https://suxiaogang223.github.io/</link>
  <description>xiaogang 的个人博客，记录数据系统、存储格式、查询优化和工程实践。</description>
<item>
  <title>谓词下推(一)：概念和原理</title>
  <link>https://suxiaogang223.github.io/2024/11/16/pushdown1/</link>
  <guid>https://suxiaogang223.github.io/2024/11/16/pushdown1/</guid>
  <pubDate>Sat, 16 Nov 2024 00:00:00 GMT</pubDate>
  <description>从概念到复杂谓词过滤，解释谓词下推的基本原理。</description>
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