Re: [PATCHES] GIN improvements
| От | Tom Lane |
|---|---|
| Тема | Re: [PATCHES] GIN improvements |
| Дата | |
| Msg-id | 26721.1228266365@sss.pgh.pa.us обсуждение исходный текст |
| Ответ на | Re: [PATCHES] GIN improvements (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
| Ответы |
Re: [PATCHES] GIN improvements
|
| Список | pgsql-hackers |
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> Teodor Sigaev wrote:
>> - Falling back to regular insert will take long time for update of whole
>> table - and that was one of reasons of that patch. Users forget to drop
>> GIN index before a global update and query runs forever.
> If *that* is a use case we're interested in, the incoming tuples could
> be accumulated in backend-private memory, and inserted into the index at
> commit. That would be a lot simpler, with no need to worry about
> concurrent inserts or vacuums.
Doesn't work --- the index would yield wrong answers for later queries
in the same transaction.
regards, tom lane
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