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How does the MapReduce sort algorithm work?
...uce sort, except for a custom partitioner that uses a sorted list of N − 1 sampled keys that define the key range for each reduce. In particular, all keys such that sample[i − 1] <= key < sample[i] are sent to reduce i. This guarantees that the output of reduce i are all less than the outp...
Force add despite the .gitignore file
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edited Oct 21 '15 at 15:04
answered Nov 4 '11 at 8:12
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Detect and exclude outliers in Pandas data frame
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JavaScript private methods
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412
You can do it, but the downside is that it can't be part of the prototype:
function Restaurant...
Iterating each character in a string using Python
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edited Nov 2 '18 at 17:10
vallentin
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Installing a dependency with Bower from URL and specify version
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Why does pthread_cond_wait have spurious wakeups?
...SIX Thread Architect |
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PostgreSQL: Difference between text and varchar (character varying)
...array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values shorter than n (pads them to n), and can lead to subtle errors be...
How to force a SQL Server 2008 database to go Offline
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186
Go offline
USE master
GO
ALTER DATABASE YourDatabaseName
SET OFFLINE WITH ROLLBACK IMMEDIATE
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