Re: WIP: extensible enums
От
Tom Lane
Тема
Re: WIP: extensible enums
Дата
Msg-id
22515.1287424125@sss.pgh.pa.us
Ответ на
Re: WIP: extensible enums (Dean Rasheed)
Список
Дерево обсуждения
WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Alvaro Herrera <alvherre@commandprompt.com>
Re: WIP: extensible enums David Fetter <david@fetter.org>
Re: WIP: extensible enums "Andrew Dunstan" <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums David Fetter <david@fetter.org>
Re: WIP: extensible enums Joseph Adams <joeyadams3.14159@gmail.com>
Re: WIP: extensible enums Thom Brown <thom@linux.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Re: WIP: extensible enums "Andrew Dunstan" <andrew@dunslane.net>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Josh Berkus <josh@agliodbs.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Josh Berkus <josh@agliodbs.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Josh Berkus <josh@agliodbs.com>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums "David E. Wheeler" <david@kineticode.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums "Andrew Dunstan" <andrew@dunslane.net>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Greg Stark <gsstark@mit.edu>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Greg Stark <gsstark@mit.edu>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Alvaro Herrera <alvherre@commandprompt.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums "Joshua D. Drake" <jd@commandprompt.com>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Bruce Momjian <bruce@momjian.us>
Re: WIP: extensible enums Josh Berkus <josh@agliodbs.com>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Peter Eisentraut <peter_e@gmx.net>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Josh Berkus <josh@agliodbs.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums David Fetter <david@fetter.org>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Merlin Moncure <mmoncure@gmail.com>
Re: WIP: extensible enums Robert Haas <robertmhaas@gmail.com>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Thom Brown <thom@linux.com>
Re: WIP: extensible enums Magnus Hagander <magnus@hagander.net>
Re: WIP: extensible enums Alvaro Herrera <alvherre@commandprompt.com>
Re: WIP: extensible enums Dean Rasheed <dean.a.rasheed@gmail.com>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums Andrew Dunstan <andrew@dunslane.net>
Re: WIP: extensible enums Tom Lane <tgl@sss.pgh.pa.us>
Re: WIP: extensible enums "David E. Wheeler" <david@kineticode.com>
Re: WIP: extensible enums Thom Brown <thom@linux.com>
Dean Rasheed writes: > I think the hash map lookups could be made pretty quick, if we're > prepared to write a bit of dedicated code there rather than relying on > the more general-purpose caching code. It's still going to be very significantly slower than what I'm suggesting --- I'm *already* assuming that step 4 is using a hash or something else smarter than just traversing a list. My step 3 is just a bit-array index operation (well, 2 of 'em). (I'm pretty dubious of unsubstantiated claims that you can build a hash table that's significantly faster than our existing hash code, anyway.) regards, tom lane
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