Extends the isMountedRef pattern to all async methods in DatasourceEditor to prevent state updates and toast notifications after component unmount. **Methods Protected**: - onQueryFormat: Guards SQL formatting state updates and toasts - formatSql: Guards SQL formatting via SupersetClient.post - syncMetadata: Guards metadata sync state updates and toasts - fetchUsageData: Guards usage data state updates and toasts (already had partial guards) **Pattern Applied**: - Initialize: this.isComponentMounted = false (constructor) - Set true: componentDidMount - Set false: componentWillUnmount - Guard all post-await state updates and toast calls with if (this.isComponentMounted) **Why This Matters**: The parent DatasourceEditor contains the child DatasetUsageTab. Both components make async calls that can resolve after unmount: - Parent: SupersetClient.get, formatQuery, fetchSyncedColumns - Child: onFetchCharts (calls parent's fetchUsageData) Both need mount guards because they manage independent state. This commit completes the pattern in the parent, matching the fix applied to the child in the previous commit. **Benefits**: - Eliminates potential intermittent test failures in parent component - Prevents memory leaks and stale state updates - Consistent async safety pattern across parent and child - Production safety for all SQL formatting and metadata operations 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Superset
A modern, enterprise-ready business intelligence web application.
Why Superset? | Supported Databases | Installation and Configuration | Release Notes | Get Involved | Contributor Guide | Resources | Organizations Using Superset
Why Superset?
Superset is a modern data exploration and data visualization platform. Superset can replace or augment proprietary business intelligence tools for many teams. Superset integrates well with a variety of data sources.
Superset provides:
- A no-code interface for building charts quickly
- A powerful, web-based SQL Editor for advanced querying
- A lightweight semantic layer for quickly defining custom dimensions and metrics
- Out of the box support for nearly any SQL database or data engine
- A wide array of beautiful visualizations to showcase your data, ranging from simple bar charts to geospatial visualizations
- Lightweight, configurable caching layer to help ease database load
- Highly extensible security roles and authentication options
- An API for programmatic customization
- A cloud-native architecture designed from the ground up for scale
Screenshots & Gifs
Video Overview
Large Gallery of Visualizations
Craft Beautiful, Dynamic Dashboards
No-Code Chart Builder
Powerful SQL Editor
Supported Databases
Superset can query data from any SQL-speaking datastore or data engine (Presto, Trino, Athena, and more) that has a Python DB-API driver and a SQLAlchemy dialect.
Here are some of the major database solutions that are supported:
A more comprehensive list of supported databases along with the configuration instructions can be found here.
Want to add support for your datastore or data engine? Read more here about the technical requirements.
Installation and Configuration
Try out Superset's quickstart guide or learn about the options for production deployments.
Get Involved
- Ask and answer questions on StackOverflow using the apache-superset tag
- Join our community's Slack and please read our Slack Community Guidelines
- Join our dev@superset.apache.org Mailing list. To join, simply send an email to dev-subscribe@superset.apache.org
- If you want to help troubleshoot GitHub Issues involving the numerous database drivers that Superset supports, please consider adding your name and the databases you have access to on the Superset Database Familiarity Rolodex
- Join Superset's Town Hall and Operational Model recurring meetings. Meeting info is available on the Superset Community Calendar
Contributor Guide
Interested in contributing? Check out our CONTRIBUTING.md to find resources around contributing along with a detailed guide on how to set up a development environment.
Resources
- Superset "In the Wild" - open a PR to add your org to the list!
- Feature Flags - the status of Superset's Feature Flags.
- Standard Roles - How RBAC permissions map to roles.
- Superset Wiki - Tons of additional community resources: best practices, community content and other information.
- Superset SIPs - The status of Superset's SIPs (Superset Improvement Proposals) for both consensus and implementation status.
Understanding the Superset Points of View
-
Getting Started with Superset
-
Deploying Superset
-
Recordings of Past Superset Community Events
-
Visualizations
Repo Activity





































