https://hdknr.github.io/blogs/tags/arrow/Recent content in Arrow on hdknr blogHugo -- 0.157.0jaMon, 06 Apr 2026 00:00:00 +0000https://hdknr.github.io/blogs/wiki/concepts/columnar-storage/Mon, 06 Apr 2026 00:00:00 +0000https://hdknr.github.io/blogs/wiki/concepts/columnar-storage/データを列ごとに格納するストレージ方式。分析クエリの I/O 効率と圧縮率を大幅向上