I have a table called "session" which has foreign key constraints. I
removed them and auto generated a migration script. The upgrade function is
populated as expected but the downgrade function isn't. I searched through
the available operations but can't find what i need.
The create_foreign_key creates a new table which I don't want. The
create_unique_constraint and create_check_constraint are also not what I'm
looking for. I guess alter_table is left but I don't know how to use it.
Should I fall back to sql alchemy operations?
def upgrade():
op.drop_constraint('session_server_fkey', 'session', 'foreignkey')
op.drop_constraint('session_app_fkey', 'session', 'foreignkey')
def downgrade():
pass
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