On Thu, Nov 17, 2011 at 01:19:30PM +0800, Yan Chunlu wrote:
> recently I have found several tables has exactly the same pkey, here is
> the definition:
> "diggcontent_data_account_pkey" PRIMARY KEY, btree (thing_id, key)
please check:
select thing_id, key, count(*) from diggcontent_data_account group by 1,2 having
count(*) > 1;
this will show if you have really duplicated values.
if you have - the index ( diggcontent_data_account_pkey ) is broken.
Exact reason can vary, any chance this database is hot-backup restored
from different system?
Best regards,
depesz
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