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Apache Spark: map vs mapPartitions?
...'s map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks.
3 Answers
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Differences between git pull origin master & git pull origin/master
What is the difference between git pull origin master and git pull origin/master ?
3 Answers
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Equivalent of varchar(max) in MySQL?
...amples:
The maximum row size is 65535, but a varchar also includes a byte or two to encode the length of a given string. So you actually can't declare a varchar of the maximum row size, even if it's the only column in the table.
mysql> CREATE TABLE foo ( v VARCHAR(65534) );
ERROR 1118 (42000): ...
Shell one liner to prepend to a file
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The hack below was a quick off-the-cuff answer which worked and received lots of upvotes. Then, as the question became more popular and more time passed, outraged people started reporting that it sorta worked but weird things could happen, or it just didn't work at all, so it wa...
How do you use a variable in a regular expression?
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If you need to use an expression like /\/word\:\w*$/, be sure to escape your backslashes: new RegExp( '\\/word\\:\\w*$' ).
– Jonathan Swinney
Nov 9 '10 at 23:04
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Interfaces — What's the point?
The reason for interfaces truly eludes me. From what I understand, it is kind of a work around for the non-existent multi-inheritance which doesn't exist in C# (or so I was told).
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How to import a Python class that is in a directory above?
I want to inherit from a class in a file that lies in a directory above the current one.
7 Answers
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Firefox Web Console Disabled?
...is happens when the page itself defines a global variable called console, for example. If the page is browser-sniffing to decide whether to define it, the behavior could differ in different browsers.
In the case of Firefox it also happens when Firebug is installed and its console is enabled, since...
linq where list contains any in list
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i was trying to use this query for search box, it searches any character in Person_Name column, i got this error :'DbIntersectExpression requires arguments with compatible collection ResultTypes' so i tried .StartWith, .EndsWith, .Contains from here it wor...
Coalesce function for PHP?
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There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
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