this is due to concurrent database connections where one or more of them has
acquired a lock on a schema object such as a Table and other DDL operations
against that object are blocked.
look at your processlist on the database server, or run a query against
pg_stat_activity on the database itse
I'm trying to do "alembic revision --autogenerate"
I get the usual warnings (that I've gotten in previous successful runs)
Here's the console output
alembic$ alembic revision --autogenerate
INFO [alembic.runtime.migration] Context impl PostgresqlImpl.
INFO [alembic.runtime.migration] Will as
