systemsnull https://systemsnull.net Last 100 notes on systemsnull Quartz -- quartz.jzhao.xyz Glyph https://systemsnull.net/glyph-public/ https://systemsnull.net/glyph-public/ Mon, 09 Nov 2026 21:00:45 GMT The Ultimate Guide to Apache Spark 4.3 https://systemsnull.net/posts/data-engineering-ai/ultimate-guide-spark-43 https://systemsnull.net/posts/data-engineering-ai/ultimate-guide-spark-43 Thu, 05 Nov 2026 08:00:00 GMT Spark Connect from Rust: Pull Spark outputs into DuckDB and Polars https://systemsnull.net/posts/data-engineering-ai/spark-connect-rust-duckdb-polars https://systemsnull.net/posts/data-engineering-ai/spark-connect-rust-duckdb-polars Tue, 03 Nov 2026 08:00:00 GMT Apache Iceberg v4 Column Updates Are About to Change Feature Engineering https://systemsnull.net/posts/data-engineering-ai/iceberg-column-updates https://systemsnull.net/posts/data-engineering-ai/iceberg-column-updates Tue, 27 Oct 2026 07:00:00 GMT About https://systemsnull.net/about https://systemsnull.net/about Fri, 23 Oct 2026 23:35:12 GMT Lisa N. 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