| From: | "Mikheev, Vadim" <vmikheev(at)SECTORBASE(dot)COM> |
|---|---|
| To: | "'vitus(at)ice(dot)ru'" <vitus(at)ice(dot)ru>, pgsql-bugs(at)postgresql(dot)org |
| Cc: | "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | RE: Update is not atomic |
| Date: | 2001-06-20 16:43:05 |
| Message-ID: | 3705826352029646A3E91C53F7189E32016681@sectorbase2.sectorbase.com |
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| Lists: | pgsql-bugs pgsql-hackers |
> Problem can be demonstrated by following example
>
> create table a (a numeric primary key);
> insert into a values (1);
> insert into a values (2);
> insert into a values (3);
> insert into a values (4);
> update a set a=a+1 where a>2;
> ERROR: Cannot insert a duplicate key into unique index a_pkey
We use uniq index for UK/PK but shouldn't. Jan?
Vadim
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