I am creating custom types in sqlalchemy to handle postgresql composite
types. The first time i run the migrations, alembic discovers the types but
after adding changes e.g cardinality from nullable=True ---->
nullable=False, alembic assigns a NullType to my custom types. what is the
issues here and how can i fix it?
def upgrade():
### commands auto generated by Alembic - please adjust! ##
op.alter_column('organization', 'active',
existing_type=sa.BOOLEAN(),
nullable=False)
op.alter_column('organization', 'identifier',
existing_type=sa.NullType(),
nullable=False)
op.alter_column('organization', 'name',
existing_type=sa.TEXT(),
nullable=False)
### end Alembic commands ###
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