https://jiangxt2.github.io/en/Recent content in Technical docs on PortraitsHugoen-USThu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/clickhouse/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/clickhouse/A practical path through MergeTree, ordering keys, partitions, and query execution.https://jiangxt2.github.io/en/comparisons/clickhouse-vs-doris/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/comparisons/clickhouse-vs-doris/A comparison framework for ClickHouse and Doris across data layout, execution, ecosystem, and operations.https://jiangxt2.github.io/en/docs/daft/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/daft/Notes connecting DataFrames, physical plans, and distributed data processing.https://jiangxt2.github.io/en/docs/doris/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/doris/Notes on MPP analytics, partitioning, bucketing, table models, and acceleration.https://jiangxt2.github.io/en/docs/ray/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/ray/Understand Ray’s distributed application model through Tasks, Actors, and scheduling.https://jiangxt2.github.io/en/concepts/columnar-storage/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/concepts/columnar-storage/Understand row and column storage through access patterns, compression, scans, and write cost.https://jiangxt2.github.io/en/docs/spark/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/docs/spark/A learning path through execution, shuffle, Spark SQL, and streaming.https://jiangxt2.github.io/en/comparisons/spark-vs-daft/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/comparisons/spark-vs-daft/Compare Spark and Daft across data abstractions, physical plans, ecosystem, and fit.https://jiangxt2.github.io/en/comparisons/spark-vs-ray/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/comparisons/spark-vs-ray/Understand Spark and Ray through computation models, scheduling, data work, and ecosystem boundaries.https://jiangxt2.github.io/en/concepts/shuffle/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/concepts/shuffle/Why distributed systems redistribute data, and where shuffle cost comes from.https://jiangxt2.github.io/en/concepts/vectorized-execution/Thu, 17 Sep 2026 00:00:00 +0000https://jiangxt2.github.io/en/concepts/vectorized-execution/Understand vectorized execution as batch processing instead of row-at-a-time work, especially in OLAP systems.https://jiangxt2.github.io/en/posts/2026/09/17/welcome-to-my-technical-notes/Thu, 17 Sep 2026 00:00:00 +0800https://jiangxt2.github.io/en/posts/2026/09/17/welcome-to-my-technical-notes/A personal technical site built with Hugo, Vue, and GitHub Pages.