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Re: duplicate key value violates unique constraint "pg_class_relname_nsp_index"

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On 05/27/2015 06:05 AM, Melvin Davidson wrote:
What this indicates is that someone, or some thing, is trying to create
a table in a schema that already exists.

The error you see in that situation is:

postgres-2015-05-27 06:25:10.173 PDT-0ERROR: relation "table1" already exists postgres-2015-05-27 06:25:10.173 PDT-0STATEMENT: create table table1 (i int);


Best guess is as Pete and Albe said, some user code is directly accessing pg_class or the index has been corrupted.

Here is the structure of pg_class_relname_nsp_index:
CREATE UNIQUE INDEX pg_class_relname_nsp_index ON pg_class USING btree
(relname, relnamespace)

What you should also see in the error log is a line immediately
following that error which shows you exactly what the conflict is, but
you have not provided that to us.




--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx


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