--- title: Generated Columns in PostgreSQL | daily.dev description: Generated columns in PostgreSQL, introduced in version 12, allow data to be computed dynamically at the database level. There are two types: virtual and... canonical: https://daily.dev/posts/generated-columns-in-postgresql-y1uesxmvg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Generated Columns in PostgreSQL | daily.dev og:description: Generated columns in PostgreSQL, introduced in version 12, allow data to be computed dynamically at the database level. There are two types: virtual and... og:url: https://daily.dev/posts/generated-columns-in-postgresql-y1uesxmvg og:image: https://api.daily.dev/og/posts/Y1UESxMVg.png og:image:alt: Generated Columns in PostgreSQL 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. # Generated Columns in PostgreSQL **[Hashrocket](https://daily.dev/sources/hashrocket)** · 4 min read · 14 upvotes · 1 comments ## Summary Generated columns in PostgreSQL, introduced in version 12, allow data to be computed dynamically at the database level. There are two types: virtual and stored, though PostgreSQL only supports stored columns. This post provides an example of creating and using a generated column, explores when they are computed, and highlights some limitations, such as the inability to reference a generated column from another generated column and the use of constraints on generated columns. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@tekn0wledg** · 0 upvotes > Love it. Can't wait to use this. --- Tags: [#database](https://daily.dev/tags/database), [#backend](https://daily.dev/tags/backend), [#sql](https://daily.dev/tags/sql), [#postgresql](https://daily.dev/tags/postgresql) [View this post on daily.dev](https://daily.dev/posts/generated-columns-in-postgresql-y1uesxmvg) ```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":"Generated Columns in PostgreSQL","url":"https://daily.dev/posts/generated-columns-in-postgresql-y1uesxmvg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/generated-columns-in-postgresql-y1uesxmvg"},"datePublished":"2024-06-20T13:03:15.476Z","dateModified":"2024-10-05T16:42:33.030Z","description":"Generated columns in PostgreSQL, introduced in version 12, allow data to be computed dynamically at the database level. 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Can’t wait to use this.","datePublished":"2024-06-20T14:40:56.479Z","url":"https://daily.dev/posts/Y1UESxMVg#c-m0Rf2hfxV","author":{"@type":"Person","name":"Scott Davis","url":"https://daily.dev/tekn0wledg","image":"https://avatars.githubusercontent.com/u/355212?v=4"}}]} ```