python - SQLAlchemy: how to make primary_key not unique (PostgreSQL)? -

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i need that. i've tried define in model:

vs_id = column(integer, primary_key=true, unique=false)

but didn't work - database schema has such row:

alter table my_table__ add constraint my_table___pkey primary key (vs_id);

how solve this? in advance!

the primary key must unique, in order able refer specific record.

if need this, add field isn't unique!


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