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Insert, on duplicate update in PostgreSQL?
... is not consecutive (there are gaps between the inserts and updates.). Any idea what is going on here? Is this normal? Any idea how to avoid this behavior? Thank you.
– W.M.
Aug 7 '16 at 10:47
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What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
...ust a single matrix, with the R matrix embedded in the upper triangle. No idea where the rest of the matrix comes from, and no Q matrix can be accessed.
Armadillo
Advantages:
1. Wide range of decompositions and other functions (including QR).
2. Reasonably fast (uses expression templates), but aga...
Is it possible to rotate a drawable in the xml description?
...ivotY defines the center point of the rotation. For mirroring I don't have idea because this XML can only define 2D rotation.
– dmaxi
Jan 4 '12 at 18:32
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What is the usefulness of `enable_shared_from_this`?
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In other words the whole idea of enable_shared_from_thisis brittle to begin with since the point is to be able to get a shared_ptr<T> from a T*, but in reality when you get a pointer T* t it is generally not safe to assume anything about it alr...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...te some time and no plans to move to java 8. Yet, this is quite a puzzling idea since it's trivial to be implemented by bytecode generation anyways, unless now the verifier actually checks if they method declares the throwables... but that might be backward incompatible as metadata about thrown exce...
Get current stack trace in Ruby without raising an exception
...ktrace (stacktrace) in a Rails 3 app without an exception occurring. Any idea how?
3 Answers
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What should every JavaScript programmer know? [closed]
...hile Ajaxian.com is a good blog to keep up on new, interesting, and or odd ideas for Javascript. There are a number of other resources but those are the ones that helped me the most.
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Why is there “data” and “newtype” in Haskell? [duplicate]
... a much better understanding of lazy evaluation than I do. I stick to the idea in the Report, namely that newtype is there for you to rename an existing type, like having several different incompatible kinds of measurements:
newtype Feet = Feet Double
newtype Cm = Cm Double
both behave exact...
Why Doesn't C# Allow Static Methods to Implement an Interface?
...ou a FooBar blob, and take it as an indication that it might not be a good idea.
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Platform independent size_t Format specifiers in c?
...omething but still this answer is just wrong. Ah, I think I understand the idea here in 'portable'. It must be saying that it works for both 32-bit and 64-bit. But of course it would.
– Pryftan
Dec 3 '19 at 15:00
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