Dne 15.9.2011 01:40, Tom Lane napsal(a): > Stefan Keller <sfkeller@xxxxxxxxx> writes: >> 2011/9/14 Tom Lane <tgl@xxxxxxxxxxxxx> writes: >>> (...) I think that >>> the current state of affairs is still what depesz said, namely that >>> there might be cases where they'd be a win to use, except the lack of >>> WAL support is a killer. I imagine somebody will step up and do that >>> eventually. > >> How much of work (in man days) do you estimate would this mean for >> someone who can program but has to learn PG internals first? > > No idea ... I'm probably not the best person to estimate how long it > would take someone to get up to speed on the relevant internals, > but I'm sure that would take longer than actually doing the work. > While it's not a trivial task, I think it fits the definition of > "a small matter of programming": a piece of code whose anticipated > length is significantly greater than its complexity. We've been asked by a local university for PostgreSQL-related topics of theses and seminary works, so I'm wondering if adding WAL support to hash indexes would be a good fit ... Can anyone estimate if a student with reasonable C-knowledge a can implement this in about 4 months? It seems like a reasonable amount of research and work to me. Tomas PS: All interesting thesis ideas are welcome. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance