--- title: Integrating KurrentDB and Databricks via Arrow Flight... description: A hands-on reference implementation for building a full medallion pipeline (Bronze → Silver → Gold) that incrementally ingests event-sourced data from... canonical: https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Integrating KurrentDB and Databricks via Arrow Flight SQL: A Reference Implementation Guide for Event-Sourced Analytics Part 2 | daily.dev og:description: A hands-on reference implementation for building a full medallion pipeline (Bronze → Silver → Gold) that incrementally ingests event-sourced data from... og:url: https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i og:image: https://api.daily.dev/og/posts/U7rePo51i.png og:image:alt: Integrating KurrentDB and Databricks via Arrow Flight SQL: A Reference Implementation Guide for Event-Sourced Analytics Part 2 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. # Integrating KurrentDB and Databricks via Arrow Flight SQL: A Reference Implementation Guide for Event-Sourced Analytics Part 2 **[Event Store](https://daily.dev/sources/eventstore)** · 11 min read · 0 upvotes · 0 comments ## Summary A hands-on reference implementation for building a full medallion pipeline (Bronze → Silver → Gold) that incrementally ingests event-sourced data from KurrentDB into Databricks using Arrow Flight SQL. Bronze lands raw events hourly via ADBC Flight SQL with idempotent MERGE on log_position. Silver notebooks use Delta Change Data Feed to project each event type into typed columns, discarding raw JSON to minimize storage duplication. Gold joins all Silver tables into a single loan-lifecycle table for BI and ML consumption. The guide covers table DDL, per-event-type Silver projection notebooks in PySpark, a Gold rebuild query, Databricks Workflow orchestration with parallel Silver tasks, and deterministic recovery via high-water mark reset and full replay from KurrentDB. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Introduction to Data Engineering using Azure and Databricks: Part I](https://daily.dev/posts/introduction-to-data-engineering-using-azure-and-databricks-part-i-bfqfwwchk) · Medium · 2 upvotes · 0 comments - [Event-Driven Agent Coordination with KurrentDB: Leveraging Event Sourcing for Multi-Step Workflows](https://daily.dev/posts/event-driven-agent-coordination-with-kurrentdb-leveraging-event-sourcing-for-multi-step-workflows-chhf1nkyx) · Event Store · 1 upvotes · 1 comments - [Are you using Databricks and want to try the power of Snowflake?](https://daily.dev/posts/are-you-using-databricks-and-want-to-try-the-power-of-snowflake--sm1ypskf0) · Snowflake Community · 0 upvotes · 0 comments - [Confluent Tableflow \+ Databricks Unity Catalog](https://daily.dev/posts/confluent-tableflow-databricks-unity-catalog-3l7atiiei) · Confluent Blog · 1 upvotes · 0 comments --- Tags: [#architecture](https://daily.dev/tags/architecture), [#databricks](https://daily.dev/tags/databricks) [View this post on daily.dev](https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i) ```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":"Integrating KurrentDB and Databricks via Arrow Flight SQL: A Reference Implementation Guide for Event-Sourced Analytics Part 2","url":"https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i"},"datePublished":"2026-08-04T14:30:30.485Z","dateModified":"2026-08-04T14:31:15.464Z","description":"A hands-on reference implementation for building a full medallion pipeline (Bronze → Silver → Gold) that incrementally ingests event-sourced data from...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/53535d4a8ec56329ef4fbdf5e1e9bae7?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/53535d4a8ec56329ef4fbdf5e1e9bae7?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Event Store","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":"Event Store","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/6e7940e0a29e4b3cbfef11831ec252c2","url":"https://daily.dev/sources/eventstore"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/integrating-kurrentdb-and-databricks-via-arrow-flight-sql-a-reference-implementation-guide-for-even-u7repo51i","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"architecture,databricks","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Event Store","item":"https://daily.dev/sources/eventstore"},{"@type":"ListItem","position":3,"name":"Integrating KurrentDB and Databricks via Arrow Flight SQL: A Reference Implementation Guide for Event-Sourced Analytics Part 2"}]} ```