Pavan Deolasee wrote:
> On 3/23/07, Florian G. Pflug <fgp@master.phlo.org> wrote:
>>
>>
>> Why exactly can't a SERIALIZABLE transaction use the index it created
>> itself? If you add a pointer to the root of all HOT update chains where
>> either the HEAD is alive, or some tuple is visible to the transaction
>> creating the index, shouldn't this be sufficient for using the index
>> in the creating transaction?
>
> Tuples in the HOT-chain may not share the same index keys with
> respect to the new index being built (they share the same keys for
> all existing indexes though). So we don't know which index key
> to use while building the index.
Ah, of course - thanks for pointing that out.
greetings, Florian Pflug
