dosubot[bot] commented on issue #34332: URL: https://github.com/apache/superset/issues/34332#issuecomment-3124049017
<!-- Answer --> The error happens because Alembic thinks your metadata database is uninitialized—it’s trying to run the very first migration, which creates tables like dashboards that already exist. This usually means the alembic_version table in your metadata DB is missing, empty, or has the wrong value. Superset relies on this table to know which migrations have already run; if it’s out of sync, you’ll get “table already exists” errors when upgrading [see migration script](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/migrations/versions/2015-09-21_17-30_4e6a06bad7a8_init.py). To fix: 1. Back up your metadata database. 2. Inspect the alembic_version table (e.g., `SELECT * FROM alembic_version;`). - If it’s missing, create it: ```sql CREATE TABLE alembic_version (version_num VARCHAR(32) NOT NULL); ``` - If it’s empty or wrong, set it to your last known good revision (for you: `48cbb571fa3a`): ```sql DELETE FROM alembic_version; INSERT INTO alembic_version (version_num) VALUES ('48cbb571fa3a'); ``` 3. Re-run `superset db upgrade`. If you’ve had failed or partial migrations before, your schema might be inconsistent—consider testing the upgrade on a DB copy first. The official docs don’t require any special steps for this upgrade path [docs](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/docs/docs/installation/upgrading-superset.mdx). <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/bc34f8c3-a5dc-4b0a-bba2-06462a6b5219?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=githu b) [](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/issues/34332) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
