jsrn

10 ms·

31.
What's new in PostgreSQL 9.0 - a User's Perspective (wiki.postgresql.org)
121 points by jsrn 16y ago|45 comments
32.
SQLite 3.7: WAL (Write Ahead Logging) for better Concurrency and Performance(sqlite.org)
55 points by jsrn 16y ago|2 comments
33.
by jsrn 17y ago
he answered a quite similar question here: "what do you feel the modern relevance of Lisp and Prolog are in AI". http://news.ycombinator.com/item?id=943633
34.
by jsrn 17y ago
> Weren't some rich Russians willing to pay for the privilege of a pirate-hunting vacation off the coast of Somalia? No, that was a hoax: http://www.snopes.com/inboxer/hoaxes/piratecruise.asp
35.
by jsrn 17y ago
> $ someCommandChain | perl -pe 's/because sed regex sucks/' > > Maybe I could spend some time learning a new regex dialect Maybe you should first learn the Perl regex dialect (the above regex doesn't parse
36.
by jsrn 17y ago
> [...] but do leave the menu bar, as once in a while it's nice for fishing around for things I don't use often. Basically though, I just want as much screen real estate for code as possible. depending on what your value for "once in a
37.
by jsrn 17y ago
> I compiled my Emacs without gtk+ support I guess with these three lines in my .emacs (menu-bar-mode -1) (tool-bar-mode -1) (scroll-bar-mode -1) this wouldn't make much of a difference for me? (honest question)
38.
AIMA 3rd edition (Russell, Norvig) available for pre-order now(amazon.com)
81 points by jsrn 17y ago|18 comments
39.
by jsrn 17y ago
> SQL: express what you want to happen using relational notation, > and it will magically happen. There are no real-world > performance issues. I don't think that's true: Consider the CREATE INDEX statement - i
40.
by jsrn 17y ago
I've used Xmonad for a few weeks now and it is simply great: "screen real estate" is never wasted, you get free brain cycles by never doing the nitty-gritty details of window arrangement manually again - you switch high level "layout algori
41.
Web Sockets specification (IETF Internet Draft)(tools.ietf.org)
25 points by jsrn 17y ago|4 comments
42.
by jsrn 17y ago
Apart from Chromium, there are also Chrome .deb packages: 32 bit: http://www.google.com/chrome/intl/en/eula_dev.html?dl=unstab... 64 bit: http://www.google.com/chrome/intl/en/eula_dev.html?dl=unstab... I've used the 32 bit package on Ub
43.
by jsrn 17y ago
> Has anyone figured out the problem of the energy required to manufacture PV cells being greater than the power converted over their lifetime? yes, it's no longer true (solar cells have an energy yield ratio of 4 in Northern Europe and
44.
by jsrn 17y ago
perhaps you are right (although I don't quite understand what "publicity people" will have to do with a kernel scheduler), but the Unix world seems to have done not too badly with non-PC expressions such as "killing" or "starving" a process
45.
by jsrn 17y ago
> [...] you need to flatten the whitespace first with sed by "flatten the whitespace" do you mean turning many spaces into one space? If so, I have always used tr with the -s (squeeze) option for that: $ echo "one two th
46.
SQLite Foreign Key Support (arriving in 3.6.19)(sqlite.org)
41 points by jsrn 17y ago|10 comments
47.
by jsrn 17y ago
how to integrate Remember mode with org-mode: http://orgmode.org/manual/Setting-up-Remember-for-Org.html#S... and: > However some things don't fit nicely into a hierarchy. sometimes the hyperlink feature of org-mode helps with a non-t
48.
by jsrn 17y ago
Apart from the reasons CrLf was pointing out, here is another one: The shell (and a set of utilities) is standardized - it's part of the POSIX standard - this is important for some organizations. If you program in the subset of bash that co
49.
by jsrn 17y ago
> [...] and this book ( http://www.kohala.com/start/apue.html ) > are both very good. this refers to the first edition of APUE - there is also a very good (IMHO) second edition co-authored by S. Rago (a former collegue of W. Richard
50.
by jsrn 17y ago
You are right. Slide 47 says: > "With CTE and Windowing, SQL is Turing Complete." CTE (Common Table Expressions) were introduced in the SQL:1999 standard, window functions were introduced in the SQL:2003 standard. PostgreSQL implemented
51.
by jsrn 17y ago
> non-standard recursion extensions WITH RECURSIVE queries are part of the SQL 99 standard.
52.
by jsrn 17y ago
I think this is the logical flaw in your argument: > But if they got paid less, they would do less. So whoever pays them is the one responsible for their energy usage. Production (and thus energy usage) is not independent of cost (in th
53.
by jsrn 17y ago
> Check if you like, in every area $/h = energy/capita Even if one does as you do (i.e., measure energy in dollars) I smell a unit mismatch: left side of your "equation": dollars per hour right side of your "equation": dollars per human
54.
by jsrn 17y ago
> Energy is exactly equal to the cost. Ok, what does that mean? In physics, if something is exactly equal to an amount of energy, it has to be measured in the same unit as energy (joule). But cost is measured in dollars (or some other c
55.
by jsrn 17y ago
> your data imply that wind turbines pay for themselves in ~3 months. No, it doesn't imply that - the data just imply that the energy needed to build the wind turbine is recouped after 3 months. Energy cost to build something != Cost
56.
by jsrn 17y ago
> New solar cells can sometimes take greater than the life of the product to recoup the energy spent on creating them. If you live in, say, Massachusetts [...] you'll probably never net an energy savings. "False. The energy yield ratio
57.
by jsrn 17y ago
Yes. Flying is very different in this respect from cars/trains: > "Half of the work done by a plane goes into staying up; the other half goes into keeping going." therefore: > "The plane was going anyway, so my flying was energy-neu
58.
by jsrn 17y ago
for the algorithm that was used, see: http://www.smartwikisearch.com/algorithm.html
59.
by jsrn 17y ago
thank you:-) [I tried to find it, but my google-fu seems a bit rusty today...] I just finished skimming the paper - interesting how many different approaches there are for collaboration - e.g. the server in the paper is very general (works
60.
by jsrn 17y ago
> [...] there was an article here a while ago about multiple cursors & keyboards in use on a single display using a hacked X server. do you have the link perhaps?

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