Обсуждение: default index for primary key of a table

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default index for primary key of a table

От
Vinita.Bansal@trilogy.com
Дата:

Hi,

Postgres automatically creates index for Primary key of a table. I want to turn this off, so that the default index is not created for primary key. How can I do this??

Regards,
Vinita Bansal

Re: default index for primary key of a table

От
Greg Stark
Дата:
Vinita.Bansal@trilogy.com writes:

> Postgres automatically creates index for Primary key of a table. I want to
> turn this off, so that the default index is not created for primary key.
> How can I do this??

Postgres does not support UNIQUE constraints (and PRIMARY KEY implies a UNIQUE
constraint) without an index. In Postgres the index is necessary to implement
the constraint.

In practice this doesn't usually cause any problem. Why do you want to do
this?

--
greg