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Why do people say that Ruby is slow? [closed]
... always an issue if it impacts usability. True, scanning an xml file for a string in one second or three doesn't matter from a pure numbers point of view, but a couple seconds difference can make a big difference in usability when you're talking about a user-facing application.
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Is SHA-1 secure for password storage?
... that cost N once and can thereafter attack many passwords with very small extra cost per password.
If the pre-computed table is a rainbow table, then N can be somewhat bigger, because storage cost is reduced. The bottleneck on N becomes the CPU power that the attacker can muster, not the size of hi...
Changing the size of a column referenced by a schema-bound view in SQL Server
... You can't bypass it, that's its whole purpose. Somebody went to extra length to add the schemabindig to prevent table changes. This is not some accident, looks like the person know what was doing. Are you sure you want to change the table?
– Remus Rusanu
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Creating functions in a loop
...cifically looking for early binding.
If you're worried about f getting an extra argument (and thus potentially being called erroneously), there's a more sophisticated way which involved using a closure as a "function factory":
def make_f(i):
def f():
return i
return f
and in your...
Django: Why do some model fields clash with each other?
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Sometimes you have to use extra formatting in related_name
- actually, any time when inheritance is used.
class Value(models.Model):
value = models.DecimalField(decimal_places=2, max_digits=5)
animal = models.ForeignKey(
Animal, relat...
Postgres: “ERROR: cached plan must not change result type”
...RDS Postgres 10 instance, enabling the conservative setting does result in extra CPU usage on the database server. It wasn't much though, I could only even see the autosave functionality show up as using a measurable amount of CPU after I'd tuned every single query my load test was using and starte...
How to make shallow git submodules?
...itmodules submodule.<name>.shallow true
See "Git submodule without extra weight" for more.
Git 2.13 (Q2 2017) do add in commit 8d3047c (19 Apr 2017) by Sebastian Schuberth (sschuberth).
(Merged by Sebastian Schuberth -- sschuberth -- in commit 8d3047c, 20 Apr 2017)
a clone of this s...
Why are my basic Heroku apps taking two seconds to load?
... your app has been idling for a long time, it takes time to reload.
Add 1 extra dyno to keep your app from falling asleep, if that reload time is important.
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Exit a Script On Error
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@mouviciel, @Gilles: Thanks for the extra info. It's been a while since I dealt with bash.
– DGH
Dec 8 '10 at 1:37
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Database development mistakes made by application developers [closed]
...ese cases and creates more overhead in your queries as you must include an extra join. I would say that it is safer to say that you probably ought to use a surrogate for user-specific data (thus, not countries, currencies and US States).
– Thomas
Aug 2 '10 at 1...