Re: [PATCH] binary heap implementation
От | Andres Freund |
---|---|
Тема | Re: [PATCH] binary heap implementation |
Дата | |
Msg-id | 20121115162253.GA2736@awork2.anarazel.de обсуждение исходный текст |
Ответ на | [PATCH] binary heap implementation (Abhijit Menon-Sen <ams@2ndQuadrant.com>) |
Ответы |
Re: [PATCH] binary heap implementation
|
Список | pgsql-hackers |
On 2012-11-14 18:41:12 +0530, Abhijit Menon-Sen wrote: > There are two or three places in the Postgres source that implement heap > sort (e.g. tuplesort.c, nodeMergeAppend.c), and it's also needed by the > BDR code. It seemed reasonable to factor out the functionality. pg_dump also contains a binary heap implementation if memory serves right which makes me wonder whether we should try binaryheap.[ch] backend clean... It currently uses palloc/pfree. Too bad we don't have a memory allocation routine which easily works in the backend and frontend... palloc references MemoryContextAlloc and CurrentMemoryContext so thats not that easy to emulate. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
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