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If the following constraint was declared for a table named teachers, what would be the default key name assigned by PostgreSQL? teacher _ id bigserial

If the following constraint was declared for a table named teachers, what would be the default key name assigned by PostgreSQL?

teacher

_

id bigserial PRIMARY KEY

pkey

_

teachers

_

pkey

teacher

_

_

pkey

The key name must be specified when creating the constraint

pkey

_

teacher

_

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