--- title: MariaDB Foundation: Auto‑Generated User Properties in... description: MariaDB Foundation's Test-Automation Framework (TAF) 4.0 now auto-generates a fully resolved user properties file for every test run, capturing the exact... canonical: https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: MariaDB Foundation: Auto‑Generated User Properties in TAF 4.0 — The Piece for Ensuring Full Test Reproduction | daily.dev og:description: MariaDB Foundation's Test-Automation Framework (TAF) 4.0 now auto-generates a fully resolved user properties file for every test run, capturing the exact... og:url: https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw og:image: https://api.daily.dev/og/posts/MfA7wNYHw.png og:image:alt: MariaDB Foundation: Auto‑Generated User Properties in TAF 4.0 — The Piece for Ensuring Full Test Reproduction og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # MariaDB Foundation: Auto‑Generated User Properties in TAF 4.0 — The Piece for Ensuring Full Test Reproduction **[MariaDB.org](https://daily.dev/sources/mariadb-foundation)** · 4 min read · 0 upvotes · 0 comments ## Summary MariaDB Foundation's Test-Automation Framework (TAF) 4.0 now auto-generates a fully resolved user properties file for every test run, capturing the exact database configuration, resolved user properties, and meaningful CLI overrides used during execution. This single file enables exact test reproduction across machines and environments via a simple command, eliminating guesswork from missing configs or environment drift. The framework supports MariaDB, MySQL, and PostgreSQL, and was engineered on hardware donated by Hetzner. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How does TAF 4.0 ensure a test run can be exactly reproduced? TAF 4.0 writes a single auto-generated user properties file for every run, combining the winning database configuration (DB_CONFIG_USED), the fully resolved original user properties with expanded includes and applied defaults, and meaningful CLI overrides appended at the bottom so they take precedence. Running `taf --prop=generated_user_properties.properties` reproduces the exact test with no external files needed. _Teams building reproducible benchmarking pipelines can track framework updates like this one on daily.dev._ ### Which databases does the MariaDB Foundation's TAF testing framework support? TAF supports MariaDB, MySQL, and PostgreSQL, enabling multi-database workload testing and performance comparison across all three. It is released openly by the MariaDB Foundation so any database vendor can use it for performance change detection. _daily.dev helps developers comparing cross-database testing tools stay current on releases like this._ ## Similar posts on daily.dev - [MariaDB Foundation: TAF Now Supports Embedded Database Configuration in User Properties](https://daily.dev/posts/mariadb-foundation-taf-now-supports-embedded-database-configuration-in-user-properties-hx73pppn6) · MariaDB.org · 0 upvotes · 0 comments - [MariaDB Foundation’s Test Automation Framework \(TAF\) 4.0 Release](https://daily.dev/posts/mariadb-foundation-s-test-automation-framework-taf-4-0-release-h4w9ym41l) · MariaDB.org · 0 upvotes · 0 comments - [MariaDB Foundation: Why Test Case Tags Matter in TAF](https://daily.dev/posts/mariadb-foundation-why-test-case-tags-matter-in-taf-efx635bzr) · MariaDB.org · 0 upvotes · 0 comments - [Auto-Generate Agent Test Cases from Agentforce Data Libraries](https://daily.dev/posts/auto-generate-agent-test-cases-from-agentforce-data-libraries-a2uhltxze) · Salesforce Developers Blog · 0 upvotes · 0 comments - [MariaDB unifies transactional, analytical, and vector databases in MariaDB Enterprise Platform 2026 release](https://daily.dev/posts/mariadb-unifies-transactional-analytical-and-vector-databases-in-mariadb-enterprise-platform-2026--6u5rpw7sj) · SD Times · 0 upvotes · 0 comments --- Tags: [#infrastructure](https://daily.dev/tags/infrastructure), [#postgresql](https://daily.dev/tags/postgresql) [View this post on daily.dev](https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"MariaDB Foundation: Auto‑Generated User Properties in TAF 4.0 — The Piece for Ensuring Full Test Reproduction","url":"https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw"},"datePublished":"2026-10-02T15:29:56.678Z","dateModified":"2026-10-02T15:32:30.061Z","description":"MariaDB Foundation's Test-Automation Framework (TAF) 4.0 now auto-generates a fully resolved user properties file for every test run, capturing the exact...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/b7325501885438d7e9944a5bf1c16731?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/b7325501885438d7e9944a5bf1c16731?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"MariaDB.org","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"MariaDB.org","logo":"https://media.daily.dev/image/upload/s--onniydaR--/f_auto,q_auto/v1787487510/logos/mariadb-foundation?_a=BAMAMicg0","url":"https://daily.dev/sources/mariadb-foundation"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"infrastructure,postgresql","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"MariaDB.org","item":"https://daily.dev/sources/mariadb-foundation"},{"@type":"ListItem","position":3,"name":"MariaDB Foundation: Auto‑Generated User Properties in TAF 4.0 — The Piece for Ensuring Full Test Reproduction"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/mariadb-foundation-auto-generated-user-properties-in-taf-4-0-the-piece-for-ensuring-full-test-rep-mfa7wnyhw#faq","mainEntity":[{"@type":"Question","name":"How does TAF 4.0 ensure a test run can be exactly reproduced?","acceptedAnswer":{"@type":"Answer","text":"TAF 4.0 writes a single auto-generated user properties file for every run, combining the winning database configuration (DB_CONFIG_USED), the fully resolved original user properties with expanded includes and applied defaults, and meaningful CLI overrides appended at the bottom so they take precedence. 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