On 09/07/2016 10:18 AM, Chris Withers wrote:
Hi All, I have a migration which adds a column to a table where the added column forms part of the primary key.
woe be unto you.... :)
As a result, I need to alter the primary key of the table. Autogenerate doesn't appear to spot this, so what do I need to write manually to get this to work?
you need to drop the PK constraint and then re-create it. Which means for the "drop" you need to know its name for drop_constraint("my_pk_name").
Here's the create: http://alembic.zzzcomputing.com/en/latest/ops.html#alembic.operations.Operations.create_primary_key
cheers, Chris
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