A blog about software engineering, systems programming, databases, and distributed systems.https://blog.qsliu.dev/https://pgducklake.select/blog/detach-from-pgduckdb/https://pgducklake.select/blog/detach-from-pgduckdb/Sat, 07 Mar 2026 00:00:00 GMTdatabasehttps://pgducklake.select/blog/ducklake/https://pgducklake.select/blog/ducklake/Mon, 26 Jan 2026 00:00:00 GMTdatabasehttps://blog.qsliu.dev/post/postgres-tpch-q17-q20/https://blog.qsliu.dev/post/postgres-tpch-q17-q20/Mon, 08 Dec 2025 00:00:00 GMThttps://blog.qsliu.dev/post/upgrading-applications/https://blog.qsliu.dev/post/upgrading-applications/Notes on keeping applications available while versions, APIs, and schemas evolve.Thu, 28 Aug 2025 00:00:00 GMThttps://qsliu2017.github.io/postgreshttps://qsliu2017.github.io/postgresFri, 15 Aug 2025 00:00:00 GMTdatabasepostgreshttps://blog.qsliu.dev/post/external-algorithms/https://blog.qsliu.dev/post/external-algorithms/Sun, 18 May 2025 00:00:00 GMTdatabasehttps://blog.qsliu.dev/post/linux-ios/https://blog.qsliu.dev/post/linux-ios/Sat, 17 May 2025 00:00:00 GMTio_uringLinuxhttps://blog.qsliu.dev/post/zerocopy-in-golang/https://blog.qsliu.dev/post/zerocopy-in-golang/Sat, 10 May 2025 00:00:00 GMTGolanghttps://blog.qsliu.dev/post/do-harder-jobs-pay-more/https://blog.qsliu.dev/post/do-harder-jobs-pay-more/Wed, 16 Apr 2025 00:00:00 GMThttps://blog.qsliu.dev/post/aci/https://blog.qsliu.dev/post/aci/Sat, 14 Dec 2024 00:00:00 GMThttps://blog.qsliu.dev/post/debug-c-cpp/https://blog.qsliu.dev/post/debug-c-cpp/Wed, 31 Jul 2024 00:00:00 GMTHow-toCC++https://blog.qsliu.dev/post/develop-c-cpp/https://blog.qsliu.dev/post/develop-c-cpp/Wed, 31 Jul 2024 00:00:00 GMTHow-toCC++https://blog.qsliu.dev/post/first-year-of-blogging/https://blog.qsliu.dev/post/first-year-of-blogging/Sun, 07 Apr 2024 00:00:00 GMThttps://blog.qsliu.dev/post/cmu-15721/https://blog.qsliu.dev/post/cmu-15721/Fri, 29 Mar 2024 00:00:00 GMThttps://blog.qsliu.dev/post/sql-decimal/https://blog.qsliu.dev/post/sql-decimal/This post introduces the logical definition of the `DECIMAL` data type in SQL and discusses its various physical layouts.Tue, 26 Mar 2024 00:00:00 GMTSQLApache ArrowData Layouthttps://blog.qsliu.dev/post/developing-c-cpp-is-fun/https://blog.qsliu.dev/post/developing-c-cpp-is-fun/How to set up a modern C/C++ development environmentWed, 06 Mar 2024 00:00:00 GMTCC++How-tohttps://blog.qsliu.dev/post/exploring-context/https://blog.qsliu.dev/post/exploring-context/Exploring the implementation and best practices of `context` package in Go standard libraryMon, 04 Mar 2024 00:00:00 GMTGolanghttps://blog.qsliu.dev/post/alls-well-that-ends-well/https://blog.qsliu.dev/post/alls-well-that-ends-well/This post introduces a common pattern in Go, which is useful when several concurrent tasks want to be canceled when any of them failed.Sat, 02 Mar 2024 00:00:00 GMTGolangCode Snippethttps://blog.qsliu.dev/post/%E5%8F%AF%E8%83%BD%E6%80%A7%E7%9A%84%E8%89%BA%E6%9C%AF/https://blog.qsliu.dev/post/%E5%8F%AF%E8%83%BD%E6%80%A7%E7%9A%84%E8%89%BA%E6%9C%AF/Wed, 21 Feb 2024 00:00:00 GMThttps://blog.qsliu.dev/post/safely-use-unsafe/https://blog.qsliu.dev/post/safely-use-unsafe/Mon, 15 Jan 2024 00:00:00 GMTGolanghttps://blog.qsliu.dev/post/how-to-setup-gitlab-runner-with-cross-platform-docker-enabled/https://blog.qsliu.dev/post/how-to-setup-gitlab-runner-with-cross-platform-docker-enabled/Mon, 04 Dec 2023 00:00:00 GMTHow-toGitLabDockerhttps://blog.qsliu.dev/post/git-in-relational-model/https://blog.qsliu.dev/post/git-in-relational-model/Understand Git objects in relational model.Mon, 27 Nov 2023 00:00:00 GMTGithttps://blog.qsliu.dev/post/git-essentials/https://blog.qsliu.dev/post/git-essentials/Git essentials I want my colleagues to know.Tue, 24 Oct 2023 00:00:00 GMTGithttps://blog.qsliu.dev/post/migrate-to-astro/https://blog.qsliu.dev/post/migrate-to-astro/Mon, 28 Aug 2023 00:00:00 GMTFrontendSSGHugoAstrohttps://blog.qsliu.dev/post/how_to_make_developer_happy/https://blog.qsliu.dev/post/how_to_make_developer_happy/Mon, 08 May 2023 00:00:00 GMThttps://blog.qsliu.dev/post/dont_use_chatgpt/https://blog.qsliu.dev/post/dont_use_chatgpt/Use OpenAI's Playground instead.Sun, 07 May 2023 00:00:00 GMTOpenAIChatGPTGPTDeepLearninghttps://blog.qsliu.dev/post/random_display_a_html_element/https://blog.qsliu.dev/post/random_display_a_html_element/Tue, 28 Mar 2023 00:00:00 GMTjavascripthtmlhugohttps://blog.qsliu.dev/post/fibonacci/https://blog.qsliu.dev/post/fibonacci/Tue, 14 Mar 2023 00:00:00 GMThttps://blog.qsliu.dev/post/writing_an_ebpf_application/https://blog.qsliu.dev/post/writing_an_ebpf_application/Wed, 08 Mar 2023 00:00:00 GMTeBPFhttps://blog.qsliu.dev/post/bpftrace_demo/https://blog.qsliu.dev/post/bpftrace_demo/Sat, 18 Feb 2023 00:00:00 GMTeBPFbpftracehttps://blog.qsliu.dev/post/6824lab2/https://blog.qsliu.dev/post/6824lab2/Thu, 16 Feb 2023 00:00:00 GMTDistributed SystemRafthttps://blog.qsliu.dev/post/c_c11_memory_model/https://blog.qsliu.dev/post/c_c11_memory_model/Fri, 06 Jan 2023 00:00:00 GMThttps://blog.qsliu.dev/post/ebpf_and_applicationzh/https://blog.qsliu.dev/post/ebpf_and_applicationzh/Fri, 23 Dec 2022 00:00:00 GMTeBPFhttps://blog.qsliu.dev/post/trap_command_in_bash/https://blog.qsliu.dev/post/trap_command_in_bash/Sun, 11 Dec 2022 00:00:00 GMTBashToday I Learnedhttps://blog.qsliu.dev/post/%E9%81%93%E5%BE%B7%E4%B8%8E%E7%AB%8B%E6%B3%95%E5%8E%9F%E7%90%86%E5%AF%BC%E8%AE%BA/https://blog.qsliu.dev/post/%E9%81%93%E5%BE%B7%E4%B8%8E%E7%AB%8B%E6%B3%95%E5%8E%9F%E7%90%86%E5%AF%BC%E8%AE%BA/Wed, 23 Nov 2022 00:00:00 GMThttps://blog.qsliu.dev/post/the-completely-fair-scheduler/https://blog.qsliu.dev/post/the-completely-fair-scheduler/Tue, 15 Nov 2022 00:00:00 GMTOSLinuxSchedhttps://blog.qsliu.dev/post/proc_sync_barrier_pattern/https://blog.qsliu.dev/post/proc_sync_barrier_pattern/Mon, 14 Nov 2022 00:00:00 GMTOSConcurrenyData Structurehttps://blog.qsliu.dev/post/oltp_olap_tuple_storage_schemes/https://blog.qsliu.dev/post/oltp_olap_tuple_storage_schemes/Brief about OLTP/OLAP and column/row oriented storage.Sun, 13 Nov 2022 00:00:00 GMTdatabasehttps://blog.qsliu.dev/post/%E6%B4%9B%E5%85%8B%E6%94%BF%E5%BA%9C%E8%AE%BA/https://blog.qsliu.dev/post/%E6%B4%9B%E5%85%8B%E6%94%BF%E5%BA%9C%E8%AE%BA/Sat, 05 Nov 2022 00:00:00 GMThttps://blog.qsliu.dev/post/locality_principle/https://blog.qsliu.dev/post/locality_principle/Mon, 10 Oct 2022 00:00:00 GMThttps://blog.qsliu.dev/post/os_history_and_future/https://blog.qsliu.dev/post/os_history_and_future/Mon, 19 Sep 2022 00:00:00 GMTOShttps://blog.qsliu.dev/post/postgres-xid-wraparound-failure/https://blog.qsliu.dev/post/postgres-xid-wraparound-failure/Thu, 16 Dec 2021 00:00:00 GMTPostgresDatabasehttps://blog.qsliu.dev/post/github_actions_demo/https://blog.qsliu.dev/post/github_actions_demo/Wed, 28 Jul 2021 00:00:00 GMTGitHub Actions