https://zivali.github.io/tags/trino/ Recent content in Trino on Ziva Hugo en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Mon, 08 Jun 2026 02:45:00 +0000 https://zivali.github.io/posts/how-trino-executes-a-query-coordinator-workers-stages-tasks-drivers-and-pages/ Sun, 07 Jun 2026 21:04:00 +0000 https://zivali.github.io/posts/how-trino-executes-a-query-coordinator-workers-stages-tasks-drivers-and-pages/ <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.2/dist/katex.min.css" integrity="sha384-bYdxxUwYipFNohQlHt0bjN/LCpueqWz13HufFEV1SUatKs1cm4L6fFgCi1jT643X" crossorigin="anonymous"> <p>Trino can feel hard to learn because the execution vocabulary is unfamiliar: coordinator, worker, catalog, connector, split, stage, task, driver, operator, page, block.</p> <p>The useful way to learn Trino is to follow one query through the system and keep asking the same question:</p> <div class="code-block highlight is-open show-line-numbers tw-group tw-my-2"> <div class=" tw-flex tw-flex-row tw-flex-1 tw-justify-between tw-w-full tw-bg-bgColor-secondary "> <button class=" code-block-button tw-mx-2 tw-flex tw-flex-row tw-flex-1" aria-hidden="true"> <div class="group-[.is-open]:tw-rotate-90 tw-transition-[transform] tw-duration-500 tw-ease-in-out print:!tw-hidden tw-w-min tw-h-min tw-my-1 tw-mx-1"><svg class="icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!-- Font Awesome Free 5.15.4 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z"/></svg></div> <p class="tw-select-none !tw-my-1">text</p>