Primary Key is missing

[oakca]

I am sending a table to OEP via oedialect. Setup table looks like following:

        table = sa.Table(
            table_name,
            metadata,
            sa.Column('index', sa.Integer, primary_key=True,
                      autoincrement=True, nullable=False),
            sa.Column('property', sa.VARCHAR(50)),
            sa.Column('value', sa.Float()),
            schema=schema_name)

It is in OEP>sandbox>mimo_global_prop. I checked the table with pgadmin, it is there, and index column also exists. However, in pgadmin index is not primary key.

Is it a bug or am I setuping the table wrong?