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Difference between Pig and Hive? Why have both? [closed]
...rforming outer joins but hive does not. But both Hive & PIG can join, order & sort dynamically.
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Why does MYSQL higher LIMIT offset slow the query down?
...her LIMIT offset with SELECT, the slower the query becomes, when using ORDER BY *primary_key*
6 Answers
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What are Scala context and view bounds?
... view bounds in the standard library (before Scala 2.8.0, anyway), is with Ordered, like this:
def f[A <% Ordered[A]](a: A, b: A) = if (a < b) a else b
Because one can convert A into an Ordered[A], and because Ordered[A] defines the method <(other: A): Boolean, I can use the expression a...
Loop through all nested dictionary values?
...he first benefit. Also, this version can be adapted to different traversal orders quite easily by replacing the stack (a list) by a deque or even a priority queue.
– Fred Foo
May 25 '12 at 15:30
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Performance optimization strategies of last resort [closed]
...ove, and it doesn't follow exactly the same sequence, but still gets a 2-3 order of magnitude speedup.
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How can I run a PHP script in the background after a form is submitted?
...it.
From the Manual:
If a program is started with this
function, in order for it to continue
running in the background, the output
of the program must be redirected to a
file or another output stream. Failing
to do so will cause PHP to hang until
the execution of the program ends.
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SFTP Libraries for .NET [closed]
...hether files existed IIRC), and I had to call methods on private fields in order to get them working; commented-out chunks of Java code left in the source; wrapper classes named after ones in the Java standard library; Java idioms throughout. I've used SSH.NET instead (as in @asbjornu's post) with g...
In which order should floats be added to get the most precise result?
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Your instinct is basically right, sorting in ascending order (of magnitude) usually improves things somewhat. Consider the case where we're adding single-precision (32 bit) floats, and there are 1 billion values equal to 1 / (1 billion), and one value equal to 1. If the 1 comes f...
drag drop files into standard html file input
... dragover and dragenter events need to have 'preventDefault' called
// in order for the 'drop' event to register.
// See: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#droptargets
dropContainer.ondragover = dropContainer.ondragenter = function(evt) {
evt.preventDefau...
AngularJS : The correct way of binding to a service properties
...N4bqA3h9Yio
<body ng-app="ServiceNotification">
<div style="border-style:dotted" ng-controller="TimerCtrl1">
TimerCtrl1<br/>
Bad:<br/>
Last Updated: {{lastUpdated}}<br/>
Last Updated: {{calls}}<br/>
Good:<br/>
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