--- title: Robert Haas: Postgres 19 is late, and it's AI's fault description: PostgreSQL 19 will likely ship in November instead of its usual September to mid-October window, Robert Haas writes, and the delay traces back to LLMs. Three... canonical: https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Robert Haas: Postgres 19 is late, and it's AI's fault | daily.dev og:description: PostgreSQL 19 will likely ship in November instead of its usual September to mid-October window, Robert Haas writes, and the delay traces back to LLMs. Three... og:url: https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe og:image: https://api.daily.dev/og/posts/kWPWXNHxe.png og:image:alt: Robert Haas: Postgres 19 is late, and it's AI's fault 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. # Robert Haas: Postgres 19 is late, and it's AI's fault **[Planet PostgreSQL](https://daily.dev/sources/planet-postgresql)** · 5 min read · 0 upvotes · 0 comments ## Summary PostgreSQL 19 will likely ship in November instead of its usual September to mid-October window, Robert Haas writes, and the delay traces back to LLMs. Three major features, UPDATE/DELETE FOR PORTION OF, SQL/PGQ, and ALTER TABLE partition merge/split, were reverted late, between August 27 and September 15. Back-patched commits to REL_19_STABLE jumped over 60% compared to last year, and commits to the prior stable branch rose 74%, because LLMs are surfacing bugs humans missed for decades. Reviewing and fixing those LLM-found issues ate into the time needed to vet what should ship in v19. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### why is PostgreSQL 19 release delayed PostgreSQL 19 is expected to ship in November instead of the usual September to mid-October window. The delay stems from a surge in bugs found by LLMs, which pushed back-patched commits to REL_19_STABLE up more than 60% year over year, consuming time that would otherwise go toward reviewing what ships in the release. _Track Postgres 19's release timeline and what's changing on daily.dev before you plan an upgrade._ ### which PostgreSQL 19 features got reverted before release Three major features were reverted late in the PostgreSQL 19 beta period, all between August 27 and September 15: UPDATE/DELETE FOR PORTION OF, SQL Property Graph Queries (SQL/PGQ), and ALTER TABLE MERGE PARTITION/SPLIT PARTITION. Reverts that late in a beta cycle are unusual, since feature freeze normally happens each year on April 8. _Developers planning around these Postgres features can follow their status on daily.dev before upgrading._ ### are LLMs increasing the number of bugs found in open source projects like PostgreSQL Yes, LLMs are finding far more bugs in PostgreSQL than humans historically caught, including issues in decades-old code. Back-patched commits to the prior stable branch rose over 74% in a year, and PostgreSQL committers say the jump stems from LLM-assisted bug discovery rather than more mistakes being made, since LLM-drafted fixes still require human review before committing. _Maintainers weighing how AI-found bugs affect release cadence can follow this shift on daily.dev._ ## Similar posts on daily.dev - [Postgres 19 is late, and it's AI's fault](https://daily.dev/posts/postgres-19-is-late-and-it-s-ai-s-fault-4maw4xj9t) · Neon · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#llm](https://daily.dev/tags/llm), [#postgresql](https://daily.dev/tags/postgresql) [View this post on daily.dev](https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe) ```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":"Robert Haas: Postgres 19 is late, and it's AI's fault","url":"https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe"},"datePublished":"2026-10-30T16:01:51.443Z","dateModified":"2026-10-30T18:18:58.548Z","description":"PostgreSQL 19 will likely ship in November instead of its usual September to mid-October window, Robert Haas writes, and the delay traces back to LLMs. Three...","image":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","thumbnailUrl":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","isAccessibleForFree":true,"articleSection":"Planet PostgreSQL","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":"Planet PostgreSQL","logo":"https://media.daily.dev/image/upload/logos/placeholder.jpg","url":"https://daily.dev/sources/planet-postgresql"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source,llm,postgresql","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Planet PostgreSQL","item":"https://daily.dev/sources/planet-postgresql"},{"@type":"ListItem","position":3,"name":"Robert Haas: Postgres 19 is late, and it's AI's fault"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/robert-haas-postgres-19-is-late-and-it-s-ai-s-fault-kwpwxnhxe#faq","mainEntity":[{"@type":"Question","name":"why is PostgreSQL 19 release delayed","acceptedAnswer":{"@type":"Answer","text":"PostgreSQL 19 is expected to ship in November instead of the usual September to mid-October window. 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