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jeppz

35 karma · joined November 1, 2016

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jeppz··on Why SELECT * is bad for SQL performance (2020)
In some cases its not that simple, for example with Hibernate if you select specific columns then the object you get back won't be put in its L1 cache because its not the full object.

So in some cases its better to select the whole object by primary key because some other method would do that later anyhow and now its in the cache and will skip an extra db call.

jeppz··on Thank HN: You helped me get a new job
As a reddit user it is hard to resist throwing around the quick quips that one would expect to find but really just makes the content worse. There really is something about the HN environment that makes one take that extra moment to think things through and write a constructive argument instead of mindless jokes.
jeppz··on Climbing the Wealth Ladder
It really isn't that simple, most people will start spending more if you bump them up this ladder which means that "for the rest of your life" probably wont be true for long.
jeppz··on Jeison – An Emacs library for declarative JSON parsing
I'm not a big fan of names that when you say out loud others don't know which one you mean.
jeppz··on How one-sided objects like a Mobius strip work
Wait, am I crazy or is that metal strip actually not a Mobius?
jeppz··on S3 trickery: using it as a scheduler
What is it you can achieve with this that you cannot with cron?
jeppz··on Deep image reconstruction from human brain activity (2017)
When most people are connected to the cloud we will no longer need public security cameras, there will be someone on site automatically uploading what they saw.
jeppz··on Being the editor of a newspaper in Eve Online
You're making it sound like it's something bad but it's in fact what draws a lot of players and what makes it a game on a completely different level.
jeppz··on Being the editor of a newspaper in Eve Online
EVE reporting have a long history of being very biased, some of the largest organizations in the game usually run their own news sites.

I think it's very difficult to make people see you as unbiased in a world where everyone is an enemy, even your "friends" are probably spies waiting to stab you in the back and steal all your stuff.

jeppz··on 'We're doomed': Mayer Hillman on the climate reality no one else will mention
Is there money in it?
jeppz··on Researchers have identified a new DNA structure called the i-motif inside cells
The problem right now is that "has only been witnessed in vitro – that is, under artificial conditions in the laboratory, and not inside cells." which means it may not even exist in our bodies.
jeppz··on GitHub down
Yea ok I didn't know that either, I thought they were rather rare and worse than that.
jeppz··on GitHub down
Well I didn't know, not everyone uses it on a daily basis.
jeppz··on HTML5 Games Workshop: Make a Platformer Game with JavaScript
A Warhammer platformer? sounds odd.. wait, not that games workshop
jeppz··on Dawson – A Serverless Web Framework for Node.js on AWS
I have no idea why you would want to use this instead of running it directly in aws yourself. Maybe the learning curve is less steep but you lock yourself in with a 3rd party framework and if you run into problems you probably will have to learn aws anyway.
jeppz··on Dawson – A Serverless Web Framework for Node.js on AWS
Yea you can totally use Lambda for that. For example you can schedule triggers in Cloudwatch that runs a lambda at intervals to do whatever you need, for example generate a pdf and put it on s3 where you or your users can access it directly.
jeppz··on Ask HN: Will JavaScript take over the world of programming?
Languages all have strengths and weaknesses, I don't see why I would suddenly throw that away and only use JS.