pjungwir

13 ms·

91.
by pjungwir 5y ago
That's a cool puzzle! It's the same as the Bridges of Königsberg, right? If each square is a node, connected by edges to adjacent squares, then it's only solvable if there are at most two squares with an odd number of edges.
92.
by pjungwir 5y ago
"Ontological remodeling" is a lovely term. I think it's ubiquitous actually, but another nice example is the puzzle about tiling a chessboard with dominoes when the board is missing two opposite corners. Can you do it? If so,
93.
by pjungwir 5y ago
The three forms of heat are radiation, convection, and conduction. I see how radiation is different. But how are convection and conduction different? Conduction is heat transferred when things are touching. Convection is heat transferred vi
94.
by pjungwir 5y ago
G takes a line number as its "object" like other vim commands. So 1G is the first line, 10G the tenth, etc. G is the last. (0G goes to the last line too.)
95.
by pjungwir 5y ago
I'm also an independent contractor trying to find one or two trustworthy partners to go to the next step. I haven't found sales, collections, etc. to be so onerous. In fact usually I'm turning away work. A few years back I tr
96.
by pjungwir 5y ago
Even in literary criticism, this balance and specificity is such a pleasure. It's one of the things I love about Samuel Johnson's essays. (Contrast with what people are saying in the article about failing literary magazines.) I
97.
by pjungwir 5y ago
I was an English major who took 300-level courses in math (and CS, physics, history, philosophy, and Chinese). For 25 years I've regretted not applying to places like Princeton and MIT. I'm sure I could have gotten into some of th
98.
by pjungwir 5y ago
I have this in my ~/bin, but I like your version even better!: grep --color "$1"'\|$'
99.
by pjungwir 5y ago
I just re-tested on Ruby 3 & Rails 7, and even in development it no longer minds if I rename the erb file in the middle of iterating---so that's an improvement for sure! I found a Rails issue tracking partial performance in a loop
100.
by pjungwir 5y ago
> I am currently finding Rails view generation to be shockingly slow. I haven't checked this in a few years, but the last time I looked each `render` call reads the partial off disk, parses it, and executes it.[0] So the common patt
101.
by pjungwir 5y ago
What I'd really like is Database Migrations but for Terraform: a way to maintain a history of imperatively-expressed changes with up/down functions for each one. The hard part is transactional "DDL". CloudFormation has t
102.
by pjungwir 5y ago
> This latest recognition of aphantasia as a neurological difference is only a decade or so old (although references in the literature go back to the 1890’s.) The first time I heard about aphantasia I recalled reading someone, one of the
103.
by pjungwir 5y ago
I earned my Network+ cert last year for a DoD contracting gig. It was kind of nice to learn a few more port numbers, but wow: hours and hours of drilling cable standards and telco protocols from the 1990s, fiber optic connectors, servers to
104.
by pjungwir 5y ago
I've been using Solidjs the last month for a project, and I really like it. Small bundle size, super fast, not much to learn, not too much magic, lots of control. Basically instead of having a vdom the framework is able to track finer-
105.
by pjungwir 5y ago
SEEKING WORK - Portland, OR or Remote I'm a full-stack developer with 20+ years experience. My specialties are deep Postgres consulting and web development in Rails/Django/React. Occasionally I write some C or Rust for perfor
106.
by pjungwir 5y ago
An easy way to get xfce is with the Xubuntu distribution. I've run that since 14.04, or maybe longer. I get all the benefits of Ubuntu with a lot less UI churn. If you already have an Ubuntu box, you can also install the `xfce` package
107.
by pjungwir 5y ago
Yes, pretty much everything is like that: explained in terms of their web services wrapper, not the actual messages sent on the wire. And if you want to log the SOAP messages going back & forth, you have to implement a weird listener cl
108.
by pjungwir 5y ago
Any time I see "accuracy" reported as a single number, I assume it's B.S. and "for marketing purposes only". If you're serious, give me the precision and recall.
109.
by pjungwir 5y ago
I see what you're saying, but maybe "array" is the wrong term. Indeed you can't say `WHERE foo IN (?)` and pass more than one parameter (or an array parameter) for the single `?`. That's a limitation of the database
110.
by pjungwir 5y ago
If you are using Rails and ActiveModelSerializers, I wrote a gem to take your serializer definition and build the whole JSON result in Postgres: [0] It hasn't gotten much use, but I know at least one company that has used it to get 100
111.
by pjungwir 5y ago
I would love to see a FUSE filesystem for Kubernetes, CloudWatch, Data Dog, etc. Maybe something that lets you set up the folders/files based on your preferred facets, then read your logs with tail/less/grep as you like. It w
112.
by pjungwir 5y ago
It would be really cool if databases had an Option<T> type. Then you could remove all the NULLs. Although you can mark a column as NOT NULL, that restriction doesn't "travel": it isn't present for function inputs&#
113.
by pjungwir 5y ago
Yes, it makes sense. But it sure took me by surprise when I finally read the original paper.
114.
by pjungwir 5y ago
I looked up Date's two exceptions. The first is uninteresting---databases cannot contain pointers---but the second is sort of relevant: > If a relation r has heading H , then no attribute of r can be defined in terms of a relat
115.
by pjungwir 5y ago
Codd's paper is not that hard. [0] is a PDF copy. One of the pros to reading primary sources is you then know "the whole story": what if anything is missing from popular explanations, and what is changed. A striking bit of tr
116.
by pjungwir 5y ago
It reminds me of PNP & NPN transistors. Could these liquid "defects" have applications too? Ever since childhood I've wondered why the water behind a rowboat stays flat for so long. You'd think the surrounding water
117.
by pjungwir 5y ago
Huh, I think that is happening to me. A few questions: - Does the stats update happen only for SELECT, only for DML, or both? - Any drawbacks to `async statistics update`?
118.
by pjungwir 5y ago
That seems like a good point. I've worked from home for 15 years, and my productivity (and billable hours) took a big hit last spring, just from the distraction of trying to learn what I could and be prepared. Subjectively I'd say
119.
by pjungwir 5y ago
Wow these look great! My family has two 2013 Macbook Airs I need to replace soon, and the latest Apple options feel like big compromises. I love that I can get high levels of RAM. Linux support is a hard requirement for me though. And I&#x2
120.
by pjungwir 5y ago
I left programming for about six years to do grad school in Classics. I came back because programming was way more fun. The writing was on the wall when I started writing scripts to scan dactylic hexameter and convert L'Année philologi

More ›