Running VACUUM, CREATE DATABASE, or ALTER SYSTEM inside a transaction. Connection pool or ORM wrapping all commands in implicit transactions. Pipeline scripts using BEGIN/COMMIT incorrectly

Step 1: Commit or rollback the active transaction before issuing the command.. Step 2: Use `AUTOCOMMIT` mode for DDL operations that cannot be wrapped in transactions.. Step 3: Review connection pool settings — ensure DDL operations use a separate non-transactional connection.

Medium severityconfiguration

Power BI Refresh Error:
25001

What does this error mean?

A command that cannot run inside a transaction block was issued while a transaction was already active.

Common causes

1Running VACUUM, CREATE DATABASE, or ALTER SYSTEM inside a transaction
2Connection pool or ORM wrapping all commands in implicit transactions
3Pipeline scripts using BEGIN/COMMIT incorrectly

How to fix it

1Step 1: Commit or rollback the active transaction before issuing the command.
2Step 2: Use `AUTOCOMMIT` mode for DDL operations that cannot be wrapped in transactions.
3Step 3: Review connection pool settings — ensure DDL operations use a separate non-transactional connection.

Frequently asked questions

How do I prevent 25001 errors in automated pipelines?

Add retry logic with exponential backoff, validate data quality before loading, and monitor pipeline failures in MetricSign to catch this error early.

Official documentation: https://www.postgresql.org/docs/current/errcodes-appendix.html