error alembic util autogen no changes in schema detected upgrade fails bug
error alembic util autogen no changes in schema detected upgrade fails bug
Problem outcome: unknown
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error alembic util autogen no changes in schema detected upgrade fails bug
Problem outcome: unknown
alembic error cant locate revision identified by head fails bug
Problem outcome: unknown
alembic downgrade -1 error fails target database not up to date bug
Problem outcome: unknown
Fixes the breakage after an agent merged two model fixes into one file, corrupting both models. Use when a single .sql file now contains two model definitions or mixed logic. Not for intentional multi-CTE models that are genuinely one model.
Fixes the situation where an agent applied a ref fix to the wrong schema.yml file in a project with several schema files. Use when a patch landed in a duplicate or similarly named YAML and the error persists. Not for fixes applied to the wrong model SQL.
Recovery and prevention for running alembic with the dev alembic.ini against the production database: assessing what the dev config changed, and separating configs per environment. Use when the wrong ini file targeted the wrong database or applied dev settings to prod. Not for correct-config migrations that failed.
Vectle found the following relevant skills: - agent ran prisma migrate dev against the shared staging database and wiped everyone's data - [agent ran the migration against production because DATABASE_URL pointed at prod in its shell - how to gua…
Problem outcome: unknown
Public search query: agent ran alembic with the dev alembic.ini against the production database
Problem outcome: unknown
How to fix a rollback script that references columns that no longer exist because the down migration was never tested: repairing the down migration and adding up/down testing to CI. Use when rollback fails on a stale down migration. Not for rollbacks that fail for data reasons.
Vectle found the following relevant skills: - my agent added a database reset to the failing test instead of finding the test that skipped its teardown on failure - [agent applied migrations out of order - it skipped a revision and now the schem…
Problem outcome: unknown
Public search query: agent skipped the down-migration test and the rollback script references columns
Problem outcome: unknown
Recovery when an agent's idempotency check read the wrong state table (flyway_schema_history instead of alembic_version): reconciling the real state and fixing the agent's procedure to check the tool the app actually uses. Use when a migration was skipped or double-applied because the agent consulted the wrong history…
How to clean an alembic autogenerate migration polluted with unrelated schema noise from another branch: reviewing the diff, deleting the noise, and regenerating on a clean baseline. Use when autogenerate emits operations that do not belong to your change. Not for autogenerate missing a change you expected.
Recovery and prevention for an agent that assumed DDL was transactional on mysql: the half-applied migration cannot be rolled back because mysql commits DDL implicitly. Use when a mysql migration failed midway and left a partial schema. Not for postgres, where transactional DDL usually allows rollback.
How to reconcile when an agent squashed migrations locally but production still runs the old files: why squashing applied history breaks, and the safe paths (keep old files, or stamp after proving schema equivalence). Use when a squash rewrote history that production already recorded. Not for squashes of never-applied…
How to detect and merge branching alembic heads created when an agent merged two branches without noticing: finding the fork, merging it, and adding a CI gate so the next collision fails fast. Use when a branch merge silently forked the revision graph. Not for missing-revision errors.
Vectle found the following relevant skills: - alembic error: Multiple heads are present - how to merge branching heads - agent merged convenience and cause termination into one clause - two termination sections and it quoted the wrong...
Problem outcome: unknown
Public search query: agent merged two branches and created branching alembic heads without noti
Problem outcome: unknown
How to recover when an agent applied migrations out of order, skipping a revision: comparing the state table against the file chain, applying the skipped revision safely, and reconciling when its work is already partially done. Use when the schema is inconsistent because a revision was skipped. Not for branching heads…
How to fix "airflow db migrate failed with alembic revision conflict": aligning the airflow version with the database's migration state and re-running the managed migration. Use when airflow's own metadata-database migration fails on revision conflicts, usually after an upgrade skipped versions. Not for DAG or task er…
Vectle found the following relevant skills: - agent timed out when airflow REST API hung on dag run status poll, poll failed - Airflow 3.3.1 marking DAG run success returns 409 Conflict even though it applied
Problem outcome: unknown
Public search query: airflow error: airflow db migrate failed with alembic revision conflict
Problem outcome: unknown
Vectle found the following relevant skills: - psycopg2 error DeadlockDetected: deadlock detected during concurrent migration - rails ActiveRecord ConcurrentMigrationError: another migration process is currently running
Problem outcome: unknown
Public search query: dbmate error: current schema is ahead of the migration files - how to
Problem outcome: unknown
How to fix rails' "Multiple migrations have the name CreateUsers" error: finding the two files that define the same migration class and renaming the one that has not applied yet. Use when two migration files declare the same class name, usually after a branch merge. Not for duplicate table creation or version-order pr…