Postgres Pro
Downloads
Home   >   mailing lists

Re: Difference between PRIMARY KEY index and UNIQUE-NOT NULL index - Mailing list pgsql-general

From Tom Lane
Subject Re: Difference between PRIMARY KEY index and UNIQUE-NOT NULL index
Date
Msg-id 2454.1185127743@sss.pgh.pa.us
Whole thread Raw
In response to Re: Difference between PRIMARY KEY index and UNIQUE-NOT NULL index  (Vincenzo Romano <vincenzo.romano@gmail.com>)
List pgsql-general
Tree view 
Vincenzo Romano <vincenzo.romano@gmail.com> writes:
> On Sunday 22 July 2007 19:20:08 Tom Lane wrote:
>> With what index, pray tell?

> In the original setup, the "UNIQUE" constraint had been dropped
> *before* doing the tests. So the "slow" case is without the
> UNIQUE constraint but with an index on NOT NULL fields.

You haven't said where you think this index is coming from.

            regards, tom lane

pgsql-general by date:

Previous
From: Vincenzo Romano
Date:
Subject: Re: Difference between PRIMARY KEY index and UNIQUE-NOT NULL index
Next
From: Shreya Bhargava
Date:
Subject: Re: Debugging postgresql source on gdb