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– fedorqui 'SO stop harming'
Mar 22 at 10:19
1
Yes it was using the alias.
– j...
Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the hea...
getenv() vs. $_ENV in PHP
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answered Jan 10 '12 at 3:49
BatkinsBatkins
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difference between scope and namespace of ruby-on-rails 3 routing
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105
The difference lies in the paths generated.
The paths are admin_posts_path and admin_comments...
What is the default form HTTP method?
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answered Feb 22 '10 at 21:42
Drew WillsDrew Wills
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Checking length of dictionary object [duplicate]
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edited Jul 26 '10 at 17:48
Ben Zotto
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JavaScript .replace only replaces first Match [duplicate]
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answered Jul 9 '10 at 17:02
Nick Craver♦Nick Craver
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How can I add to a List's first position? [duplicate]
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answered Jan 20 '11 at 10:36
leppieleppie
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Python if-else short-hand [duplicate]
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The most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variab...
OS X10.9 环境下部署 QT5.3.1 常见的编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
OS X10.9 环境下部署 QT5.3.1 常见的编译问题出于本身对UNIX系统的好奇，以及身边一群对 Swift 语言各种推崇的苹果教徒的影响，这几天折腾起 MAC OS X来，体验下这个被无数开发者...
出于本身对UNIX系统的好奇，以及身边一群对 Swift ...