metabase/metabase
Jan 2025 – Jul 2026
19 Months active
Languages Used
ClojureTextJavaJavaScriptDockerfileMarkdownSQLShell
Technical Skills
Backend DevelopmentConfiguration ManagementData ConversionDatabaseDatabase DriversDatabase Integration
Riley Thompson
PROFILE
Riley Thompson
Over 19 months, contributed to the metabase/metabase repository by building and enhancing cross-database analytics features, driver integrations, and reliability improvements. Focused on backend development using Clojure, SQL, and JavaScript, delivering over 100 features and 46 bug fixes. Work included implementing robust data type handling, query optimization, and test automation across diverse data sources such as BigQuery, Snowflake, ClickHouse, and MongoDB. Drove improvements in CI/CD, security, and configuration management, while expanding API capabilities and supporting frontend features in React. Emphasized test-driven development and cross-team collaboration to ensure scalable, maintainable solutions that improved data integrity and developer experience.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
197Total
Bugs
46
Commits
197
Features
100
Lines of code
28,269
Activity Months19
Your Network
148 peopleSame Organization
@metabase.com45
Work History
July 2026
1 Commits • 1 Features
Jul 1, 2026Month: 2026-07 — Metabase repository: metabase/metabase. Key feature delivered: Timezone-aware reporting for bucketed temporal fields. Description: Applies the report timezone to bucketed datetime fields in reports to improve accuracy across time zones; includes tests validating the new functionality. Commit: b27f04d153407f7b863e363d8b2a07f0e2ef2e8f (message: "Use report timezone if breakout field has datetime effective type (#76697)\n\nuse report timezone if bucketed field as temporal effective type"). Overall impact: enhances cross-timezone reporting accuracy, reducing datetime misinterpretation in reports and dashboards. Development approach: focused change with tests to validate correctness, minimizing risk and ensuring maintainability. No major bugs fixed this month. Technologies/skills demonstrated: Java/Kotlin (Metabase backend), SQL, testing (unit/integration tests), temporal data handling, timezone-aware logic, code review contributions.
1 Commits • 1 Features
Jul 1, 2026Month: 2026-07 — Metabase repository: metabase/metabase. Key feature delivered: Timezone-aware reporting for bucketed temporal fields. Description: Applies the report timezone to bucketed datetime fields in reports to improve accuracy across time zones; includes tests validating the new functionality. Commit: b27f04d153407f7b863e363d8b2a07f0e2ef2e8f (message: "Use report timezone if breakout field has datetime effective type (#76697)\n\nuse report timezone if bucketed field as temporal effective type"). Overall impact: enhances cross-timezone reporting accuracy, reducing datetime misinterpretation in reports and dashboards. Development approach: focused change with tests to validate correctness, minimizing risk and ensuring maintainability. No major bugs fixed this month. Technologies/skills demonstrated: Java/Kotlin (Metabase backend), SQL, testing (unit/integration tests), temporal data handling, timezone-aware logic, code review contributions.
July 2026
June 2026
27 Commits • 13 Features
Jun 1, 2026June 2026 monthly summary for metabase/metabase focusing on business value, reliability, and cross-database improvements. Delivered features and fixes that improve query correctness, performance, and developer experience across multiple data sources (mbql5, BigQuery, Druid, SQL Server, and more). Strengthened testing CI, reduced risk of regression, and streamlined metadata handling and join behavior.
June 2026
27 Commits • 13 Features
Jun 1, 2026June 2026 monthly summary for metabase/metabase focusing on business value, reliability, and cross-database improvements. Delivered features and fixes that improve query correctness, performance, and developer experience across multiple data sources (mbql5, BigQuery, Druid, SQL Server, and more). Strengthened testing CI, reduced risk of regression, and streamlined metadata handling and join behavior.
May 2026
15 Commits • 9 Features
May 1, 2026May 2026 monthly summary for metabase/metabase: Delivered security-focused database connection hardening, reliability improvements for dashboards, dependency stabilization, impersonation correctness, MBQL5 driver enhancements, and deployment/formatting improvements. These efforts reduced risk, improved user experience, and strengthened cross-driver consistency.
15 Commits • 9 Features
May 1, 2026May 2026 monthly summary for metabase/metabase: Delivered security-focused database connection hardening, reliability improvements for dashboards, dependency stabilization, impersonation correctness, MBQL5 driver enhancements, and deployment/formatting improvements. These efforts reduced risk, improved user experience, and strengthened cross-driver consistency.
May 2026
April 2026
2 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for metabase/metabase. Focused on security-first query handling in impersonation context and performance-oriented SQL expression processing. Implemented single-statement validation to reject impersonation multi-statement queries, with driver interface enhancements and updated tests. Added temporal bucketing for SQL expressions to enable time-based data grouping, with test improvements, date formatting adjustments, and driver compatibility improvements. Delivered improvements across validation logic, tests, and cross-driver support, yielding tangible business value in security, data analysis capabilities, and reliability.
April 2026
2 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for metabase/metabase. Focused on security-first query handling in impersonation context and performance-oriented SQL expression processing. Implemented single-statement validation to reject impersonation multi-statement queries, with driver interface enhancements and updated tests. Added temporal bucketing for SQL expressions to enable time-based data grouping, with test improvements, date formatting adjustments, and driver compatibility improvements. Delivered improvements across validation logic, tests, and cross-driver support, yielding tangible business value in security, data analysis capabilities, and reliability.
March 2026
16 Commits • 7 Features
Mar 1, 2026March 2026: Cross-database driver work across metabase/metabase focusing on reliability, testing, and migration readiness. Implemented notable driver upgrades (Snowflake, Databricks), improved SQL Server boolean support, and ClickHouse upgrade path with stability safeguards, plus a targeted ClickHouse schema-name migration. Also pinned dependencies to stabilize external libraries. These efforts delivered safer data access, improved error handling, and stronger data integrity across major data sources.
16 Commits • 7 Features
Mar 1, 2026March 2026: Cross-database driver work across metabase/metabase focusing on reliability, testing, and migration readiness. Implemented notable driver upgrades (Snowflake, Databricks), improved SQL Server boolean support, and ClickHouse upgrade path with stability safeguards, plus a targeted ClickHouse schema-name migration. Also pinned dependencies to stabilize external libraries. These efforts delivered safer data access, improved error handling, and stronger data integrity across major data sources.
March 2026
February 2026
4 Commits • 3 Features
Feb 1, 2026February 2026: Delivered high-impact reliability and integration improvements for metabase/metabase. Focused on data correctness across Databricks, query reliability, and team alignment to accelerate delivery.
February 2026
4 Commits • 3 Features
Feb 1, 2026February 2026: Delivered high-impact reliability and integration improvements for metabase/metabase. Focused on data correctness across Databricks, query reliability, and team alignment to accelerate delivery.
January 2026
13 Commits • 7 Features
Jan 1, 2026January 2026 focused on strengthening cross-database reliability, enabling schema-aware analytics, and improving data integrity and observability. Delivered a driver upgrade with a safety rollback, query-processing enhancements, robust data transformation through temporary tables, and enhanced error/dependency visibility—driving faster issue resolution and safer, more scalable analytics across ClickHouse and related data sources.
13 Commits • 7 Features
Jan 1, 2026January 2026 focused on strengthening cross-database reliability, enabling schema-aware analytics, and improving data integrity and observability. Delivered a driver upgrade with a safety rollback, query-processing enhancements, robust data transformation through temporary tables, and enhanced error/dependency visibility—driving faster issue resolution and safer, more scalable analytics across ClickHouse and related data sources.
January 2026
December 2025
19 Commits • 11 Features
Dec 1, 2025Month: 2025-12 | Repository: metabase/metabase Key features delivered: - Card dependency backfill event for efficient card management: introduced a backfill-specific event to manage card dependencies without creating new revisions, accelerating card workflows. (commit 8393eb2820b6e3923dc168c8efd95b5f95f98983) - Snowflake support gating and driver alignment: exclude Snowflake from extract-columns-from-query; prioritize 'db' over 'dbname' when both provided; added tests for reliability. (commits 4bdbeedf8e1e65695cd47e358ced3a68c22f5513; ab51e0f700cfc9b0aed9ce4209b198cf7f07506e) - Segment dependencies: graph visualization and revision exclusion fixes: added segments to the dependencies graph with frontend/backend updates and tests; fixed incorrect excluded columns in segment revisions. (commits 7a98f93ad77c93caad7e8c24d5ae5c6ccec7a1be; d358403667184aa72e0815217f06e57f3253b432) - SSH tunneling support for Starburst driver: enable SSH tunneling by adjusting connection parameters and default port. (commit 88a6c07b9ca8b52750f466c3fbaee1e08ed35759) - Druid JDBC: length calculation for JSON fields: add method to calculate the length of JSON fields to better handle JSON data types; include tests. (commit c4cabddf8e37bfbd95a6cfbd576108b19199df23) Major bugs fixed: - MySQL JSON data handling: apply JSON_UNQUOTE in queries to return values without JSON quotes. (commit 8ce3b6b4068d907823cf33074af9474a73773d28) - Week-of-year ordinal formatting robustness: locale-safe formatting with tests. (commit 632b5f96a9ff27c4b09b03421981506fdb5c57c6) - Readonly native editor cursor visibility restored: revert cursor hiding in readonly mode. (commit c9969b6552ed04387731783fe2c85f575fd03894) - BigQuery timezone and timestamp handling fix: fix casting in aggregations; tests. (commit cde52a68ec03a6a438f44b542fd0b6a92ba8cac0) - Database connection timeout: introduce network timeout setting for reliability; tests included. (commit a77b0ee1da001ba0096b2248e9d2f4cbf5a16973) Overall impact and accomplishments: - Broadened capabilities across drivers, improved data reliability, and enhanced developer UX with better data representations and error resilience. Increased testing coverage and CI/CD improvements (PagerDuty automation), enabling safer, faster deployments and incident response. Technologies/skills demonstrated: - Cross-database driver enhancements (MySQL, Snowflake, Druid, PostgreSQL, ClickHouse, Starburst) - Frontend/backend coordination for graph visualization and dependencies - Test-driven development and robust test suites - CI/CD and incident response integration (GitHub Actions, PagerDuty)
December 2025
19 Commits • 11 Features
Dec 1, 2025Month: 2025-12 | Repository: metabase/metabase Key features delivered: - Card dependency backfill event for efficient card management: introduced a backfill-specific event to manage card dependencies without creating new revisions, accelerating card workflows. (commit 8393eb2820b6e3923dc168c8efd95b5f95f98983) - Snowflake support gating and driver alignment: exclude Snowflake from extract-columns-from-query; prioritize 'db' over 'dbname' when both provided; added tests for reliability. (commits 4bdbeedf8e1e65695cd47e358ced3a68c22f5513; ab51e0f700cfc9b0aed9ce4209b198cf7f07506e) - Segment dependencies: graph visualization and revision exclusion fixes: added segments to the dependencies graph with frontend/backend updates and tests; fixed incorrect excluded columns in segment revisions. (commits 7a98f93ad77c93caad7e8c24d5ae5c6ccec7a1be; d358403667184aa72e0815217f06e57f3253b432) - SSH tunneling support for Starburst driver: enable SSH tunneling by adjusting connection parameters and default port. (commit 88a6c07b9ca8b52750f466c3fbaee1e08ed35759) - Druid JDBC: length calculation for JSON fields: add method to calculate the length of JSON fields to better handle JSON data types; include tests. (commit c4cabddf8e37bfbd95a6cfbd576108b19199df23) Major bugs fixed: - MySQL JSON data handling: apply JSON_UNQUOTE in queries to return values without JSON quotes. (commit 8ce3b6b4068d907823cf33074af9474a73773d28) - Week-of-year ordinal formatting robustness: locale-safe formatting with tests. (commit 632b5f96a9ff27c4b09b03421981506fdb5c57c6) - Readonly native editor cursor visibility restored: revert cursor hiding in readonly mode. (commit c9969b6552ed04387731783fe2c85f575fd03894) - BigQuery timezone and timestamp handling fix: fix casting in aggregations; tests. (commit cde52a68ec03a6a438f44b542fd0b6a92ba8cac0) - Database connection timeout: introduce network timeout setting for reliability; tests included. (commit a77b0ee1da001ba0096b2248e9d2f4cbf5a16973) Overall impact and accomplishments: - Broadened capabilities across drivers, improved data reliability, and enhanced developer UX with better data representations and error resilience. Increased testing coverage and CI/CD improvements (PagerDuty automation), enabling safer, faster deployments and incident response. Technologies/skills demonstrated: - Cross-database driver enhancements (MySQL, Snowflake, Druid, PostgreSQL, ClickHouse, Starburst) - Frontend/backend coordination for graph visualization and dependencies - Test-driven development and robust test suites - CI/CD and incident response integration (GitHub Actions, PagerDuty)
November 2025
13 Commits • 8 Features
Nov 1, 2025November 2025 monthly summary for metabase/metabase: delivered high-value features and reliability improvements across multiple drivers, enhancing data integrity, security, and end-user experience. Highlights include active fields filtering, Athena sync enhancements, and global DB dropdown search, plus robust test fixes for Databricks/JDBC, MongoDB, PostgreSQL bytea, and stability work for Snowflake and BigQuery drivers.
13 Commits • 8 Features
Nov 1, 2025November 2025 monthly summary for metabase/metabase: delivered high-value features and reliability improvements across multiple drivers, enhancing data integrity, security, and end-user experience. Highlights include active fields filtering, Athena sync enhancements, and global DB dropdown search, plus robust test fixes for Databricks/JDBC, MongoDB, PostgreSQL bytea, and stability work for Snowflake and BigQuery drivers.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025Month 2025-10: Delivered Transform Revision History for metabase/metabase. Implemented persistence of transform revisions (create/update), updated API endpoints to publish revision events, and added tests and implementation for transform revisions. This work enhances auditability, traceability, and governance for transform changes. No major bugs fixed within the provided scope. Overall impact includes improved reliability, easier rollback, and better visibility into transform lifecycles. Technologies/skills demonstrated include API design and versioning, event-driven updates, test automation, and data governance practices.
October 2025
1 Commits • 1 Features
Oct 1, 2025Month 2025-10: Delivered Transform Revision History for metabase/metabase. Implemented persistence of transform revisions (create/update), updated API endpoints to publish revision events, and added tests and implementation for transform revisions. This work enhances auditability, traceability, and governance for transform changes. No major bugs fixed within the provided scope. Overall impact includes improved reliability, easier rollback, and better visibility into transform lifecycles. Technologies/skills demonstrated include API design and versioning, event-driven updates, test automation, and data governance practices.
September 2025
9 Commits • 7 Features
Sep 1, 2025September 2025 performance summary for metabase/metabase focused on delivering reliable cross-driver capabilities, simplifying configuration, and strengthening test coverage to reduce operational risk and accelerate data pipeline work.
9 Commits • 7 Features
Sep 1, 2025September 2025 performance summary for metabase/metabase focused on delivering reliable cross-driver capabilities, simplifying configuration, and strengthening test coverage to reduce operational risk and accelerate data pipeline work.
September 2025
August 2025
18 Commits • 6 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering cross-database routing features, expanded driver support, improved routing and permissions, and CI/CD reliability. Key outcomes include the introduction of per-driver routing and database selection across multiple engines, enhancements to Athena routing, improved security consistency across connections, broader JDBC driver capabilities, parameterization improvements, timezone accuracy, and CI/CD stability improvements that reduced flaky tests.
August 2025
18 Commits • 6 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering cross-database routing features, expanded driver support, improved routing and permissions, and CI/CD reliability. Key outcomes include the introduction of per-driver routing and database selection across multiple engines, enhancements to Athena routing, improved security consistency across connections, broader JDBC driver capabilities, parameterization improvements, timezone accuracy, and CI/CD stability improvements that reduced flaky tests.
July 2025
6 Commits • 6 Features
Jul 1, 2025July 2025 monthly summary for metabase/metabase focused on reliability, multi-warehouse routing, and security enhancements. Delivered six features across BigQuery, Snowflake, Redshift, and SQL Server, with comprehensive tests and CI updates. Implemented robust retry patterns, improved test data management, and enhanced key rotation handling to reduce maintenance overhead and improve security posture.
6 Commits • 6 Features
Jul 1, 2025July 2025 monthly summary for metabase/metabase focused on reliability, multi-warehouse routing, and security enhancements. Delivered six features across BigQuery, Snowflake, Redshift, and SQL Server, with comprehensive tests and CI updates. Implemented robust retry patterns, improved test data management, and enhanced key rotation handling to reduce maintenance overhead and improve security posture.
July 2025
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 highlights: strengthened dependency management and security for Hive JDBC, and improved ClickHouse driver stability with added regression tests and observability. Consolidated Maven repository definitions, refined hive-jdbc usage, and updated hive-related dependencies to address security warnings and improve compatibility. Stabilized the ClickHouse driver to 0.8.4, added regression tests, and introduced Prometheus metrics to monitor query performance and reliability across drivers. Enhanced test coverage and monitoring to support proactive quality and security hygiene across the Metabase stack.
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 highlights: strengthened dependency management and security for Hive JDBC, and improved ClickHouse driver stability with added regression tests and observability. Consolidated Maven repository definitions, refined hive-jdbc usage, and updated hive-related dependencies to address security warnings and improve compatibility. Stabilized the ClickHouse driver to 0.8.4, added regression tests, and introduced Prometheus metrics to monitor query performance and reliability across drivers. Enhanced test coverage and monitoring to support proactive quality and security hygiene across the Metabase stack.
May 2025
7 Commits • 5 Features
May 1, 2025May 2025 monthly summary for metabase/metabase. Delivered targeted driver enhancements and CI improvements that expand data-source compatibility, strengthen security controls, and improve test reliability. Key features include ClickHouse UUID support for native queries, database connection impersonation for MySQL and SQL Server, Druid JDBC LocalDate parameter support, BigQuery custom user agent telemetry, and CI upgrade to MongoDB 6.0. A bug fix standardized timezone literals in identity hash tests to improve cross-file test stability. Overall, these changes enable broader data-source support, safer access control, better observability, and faster, more reliable deployments.
7 Commits • 5 Features
May 1, 2025May 2025 monthly summary for metabase/metabase. Delivered targeted driver enhancements and CI improvements that expand data-source compatibility, strengthen security controls, and improve test reliability. Key features include ClickHouse UUID support for native queries, database connection impersonation for MySQL and SQL Server, Druid JDBC LocalDate parameter support, BigQuery custom user agent telemetry, and CI upgrade to MongoDB 6.0. A bug fix standardized timezone literals in identity hash tests to improve cross-file test stability. Overall, these changes enable broader data-source support, safer access control, better observability, and faster, more reliable deployments.
May 2025
April 2025
13 Commits • 4 Features
Apr 1, 2025Concise monthly summary for 2025-04 highlighting delivered features, fixed critical issues, and overall impact. Emphasizes business value, reliability, and cross-datasource stability.
April 2025
13 Commits • 4 Features
Apr 1, 2025Concise monthly summary for 2025-04 highlighting delivered features, fixed critical issues, and overall impact. Emphasizes business value, reliability, and cross-datasource stability.
March 2025
9 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for metabase/metabase: focused on UX-led database connection setup, expanding multi-database support, and hardening reliability. Delivered features to simplify onboarding and broaden data-source capabilities, while addressing stability and security concerns through targeted bug fixes and improved error handling.
9 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for metabase/metabase: focused on UX-led database connection setup, expanding multi-database support, and hardening reliability. Delivered features to simplify onboarding and broaden data-source capabilities, while addressing stability and security concerns through targeted bug fixes and improved error handling.
March 2025
February 2025
9 Commits • 2 Features
Feb 1, 2025February 2025: Metabase cross-database improvements delivering business value through MongoDB and SQL data-type enhancements, reliability improvements, and correctness fixes. Key features include MongoDB driver enhancements (UUID handling in BSON, query prettification, and UUID-pattern filtering) and SQL/JDBC array data-type handling improvements (Postgres arrays converted to vectors, read-column-thunk support for java.sql.Array, and robust null-array handling). Major reliability work updated test stability (deterministic test ordering and proper test-database teardown) and a correctness fix for AVG aggregation on Redshift and SQL Server by casting to float with updated tests. These changes improve data accuracy, query readability, cross-database compatibility, and CI reliability, enabling safer deployments and broader Mongo/SQL support across data sources.
February 2025
9 Commits • 2 Features
Feb 1, 2025February 2025: Metabase cross-database improvements delivering business value through MongoDB and SQL data-type enhancements, reliability improvements, and correctness fixes. Key features include MongoDB driver enhancements (UUID handling in BSON, query prettification, and UUID-pattern filtering) and SQL/JDBC array data-type handling improvements (Postgres arrays converted to vectors, read-column-thunk support for java.sql.Array, and robust null-array handling). Major reliability work updated test stability (deterministic test ordering and proper test-database teardown) and a correctness fix for AVG aggregation on Redshift and SQL Server by casting to float with updated tests. These changes improve data accuracy, query readability, cross-database compatibility, and CI reliability, enabling safer deployments and broader Mongo/SQL support across data sources.
January 2025
9 Commits • 3 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for metabase/metabase: Focused on cross-database data type correctness, robust CSV exports, scalable query construction, and test infrastructure, delivering measurable business value such as improved data accuracy, export reliability, and CI stability. Key work included targeted data-type fixes across multiple drivers, improved CSV export behavior for Athena, and reliability enhancements in testing, plus a minor team roster update.
9 Commits • 3 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for metabase/metabase: Focused on cross-database data type correctness, robust CSV exports, scalable query construction, and test infrastructure, delivering measurable business value such as improved data accuracy, export reliability, and CI stability. Key work included targeted data-type fixes across multiple drivers, improved CSV export behavior for Athena, and reliability enhancements in testing, plus a minor team roster update.
January 2025
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Quality Metrics
Correctness91.2%
Maintainability83.6%
Architecture82.8%
Performance81.0%
AI Usage22.8%
Skills & Technologies
Programming Languages
BashClojureDockerfileJSONJavaJavaScriptMarkdownPythonSQLShell
Technical Skills
API DevelopmentAPI IntegrationAPI developmentAWSBSONBackend DevelopmentBigQueryBuild AutomationBuild ConfigurationCI/CDClickHouseClojureClojure DevelopmentClojure developmentClojure programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline