parshimers · HackerTrans

parshimers

no profile record

comments

10 mesi fadiscuss

https://pages.cs.wisc.edu/~dbbook/ is a great overview, specifically chapters 13 and 14 on query optimization. it is difficult to reason about though, and every compiler is different. it takes time and enough examples to look at a query and have an intuition for what the plan should look like, and if there's something the compiler is not handling well.

anno scorsodiscuss

it's sad to see this location go. it was such an amazing store on the inside. the theme had some great homages to Mars Attacks!, as well as a great many other sci-fi films. this album has some good pictures of some of the more notable sculptures in there, but the theme went even farther than just sculptures: https://www.flickr.com/photos/selfishcauses/albums/721577140...

anno scorsodiscuss

anyone cheering this on really has no idea how bad this is. higher education is an area in which the US has had a completely dominant position. the smartest and most driven people from all over the world come here to learn, and start businesses here afterwards. it's a tide that raises all ships. it's not at all a mixed bag like outsourcing or the loss of domestic manufacturing.

that dominance is ending now, because of the cruel whims of one man. none of this is based on rules or process. it's the exact kind of fickle brutality people come to this country to escape. the entire thing is like cutting your nose off to spite your face.

anno scorsodiscuss

i think this already happened to some extent, with the Social Security Administration. unless something's changed it's all stored in IMS, i.e. pre-relational. perhaps there's some relational view on top of it but to my knowledge it hasn't been overhauled to anything more modern.

2 anni fadiscuss

btrfs has similar aims to ZFS, but is far less mature. i used it for my root partitions due to it not needing DKMS, but had many troubles. i used it in a fairly simple way, just a mirror. one day, of the drives in the array started to have issues- and btrfs fell on it's face. it remounted everything read-only if i remember correctly, and would not run in degraded mode by default. even mdraid would do better than this without checksumming and so forth. ZFS also likewise, says that the array is faulted, but of course allows it to be used. the fact the default behavior was not RAID, because it's literally missing the R part for reading the data back, made me lose any faith in it. i moved to ZFS and haven't had issues since. there is much more of a community and lots of good tooling around it.

2 anni fadiscuss

It's too bad they didn't put a roundabout here, there's one in the middle of old town Orange and it works pretty well. Terrible waste of money to make the intersection worse like they did.

It also says something that the behavior of the cars here isn't even illegal in California. Entering an intersection on yellow and exiting on red is fine. Right turn on red is also allowed, and many people combine that with a California stop (though that last part isn't legal). All of the above are extremely hazardous for pedestrians and encourage speeding.

2 anni fadiscuss

yeah, you could argue that the RIVA128 was the first successful PC GPU that didn't require a separate video card, but that's not the same thing.

3 anni fadiscuss

we do have semi-autonomous trains, in the US at least. i'm not sure about elsewhere. PTC stops a large class of disastrous operator errors (overspeed, missed/ignored signal, etc.). it is almost entirely complete on all of the class 1 railroads in the US by now.

3 anni fadiscuss

the resistance is a problem. there are a few in Pasadena, CA on Los Robles between California and Raymond where it's a roundabout, with stop signs on each entrance. the worst of both worlds.

3 anni fadiscuss

stop and get out of the car because someone just got flung onto/underneath your car? or perhaps have enough situational awareness to see that someone is about to walk into oncoming traffic?

3 anni fadiscuss

A Brompton is really small when folded. Smaller than a carry-on suitcase by volume. It rolls on little scooter wheels on the rear rack when folded. I bring mine into all the places you just listed on a regular basis, except for a gym. For a restaurant, it typically will fit under a table. At a bar, if you are at a table the previous thing works. I've also had the bar staff offer to stash it inside the store room. If someone you are meeting up with is DD'ing a trunk works as well. I've never been in a store so small I couldn't roll it in, you can just pull the seat up a bit and roll it in front of you.

3 anni fadiscuss

That’s really awful. These kind of incidents need to be investigated. Whatever situation caused the car to just run into the path of a pedestrian in a crosswalk can’t be allowed.

3 anni fadiscuss

don't they do this with crab pots? i'm not sure how far those go down though.

3 anni fadiscuss

At least on the crash carts I've used, the displays were always VGA. Not sure if that's still the case. I'm not sure why.

3 anni fadiscuss

I always hear a lot of grousing about DB, but I took it a lot the two times I visited, and I liked it. Even when there was a horrible windstorm that blew trees all over the tracks and stopped the ICE from coming down to Ingolstadt, I was able to hop onto regional alternates to where the ICE was, and get back to Berlin without too much insanity. The trains are pleasant and clean, and the stations are massive and have lots of nice convenience stores.

Contrast this with Metrolink or Amtrak, and it's night and day. If your train gets cancelled, at least in SoCal, you're likely hosed. You will wait hours upon hours, and some stations that are in the middle of the biggest metro area in the US get 2 trains a day. You can't just hop on something going the right way. Furthermore they are often isolated and have no stores near them.

I also really disagree with the article's implicit assumption that passenger railways somehow, have to make a profit. At least here in the US, that's often implied too, yet the interstates are completely free and funded by the state and no one bats an eye. Why?

3 anni fadiscuss

I know they started testing a while back in LA, has anyone been in one there? I haven’t seen them around town like I have in SF.

4 anni fadiscuss

It's fine if you, your coworkers, and your manager have the discretion to understand vacation is not optional. I've never seen this. It usually ends up being a race to the bottom, driven by people who think working at (or coercing, in the case of managers) a burnout pace is inherently virtuous somehow.

4 anni fadiscuss

An induction range draws a great deal of current, so it might entail a lot of very expensive electrical work. Many places that have gas appliances weren't designed with the idea of an appliance that can draw 40 amps.

4 anni fadiscuss

It seems very much like throwing the baby out with the bathwater to ban them outright. Require a fume hood, and if that is not enough then at least just ban it for new constructions or remodels. Induction is nice but I don't think it covers every niche just yet, and gas stoves are very desirable in places where electricity tends to go out due to weather.

4 anni fadiscuss

Most headunits with Carplay require you to have the vehicle speed sensor connected to them. They also have a compass. So, if you lose GPS, you have the 3 components you need for dead reckoning: A starting location, a heading, and a speed. It works pretty good even in complex areas like parking garages.