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MySQL - why not index every field?
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123
Indexes take up space in memory (RAM); Too many or too large of indexes and the DB is going to ...
A good example for boost::algorithm::join
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2 Answers
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Postgres - FATAL: database files are incompatible with server
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If you recently upgraded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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Reorder bars in geom_bar ggplot2
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Your code works fine, except that the barplot is ordered from low to high. When you want to or...
Bash ignoring error for a particular command
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12 Answers
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fastest MD5 Implementation in JavaScript
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akmozo
9,57133 gold badges2323 silver badges3838 bronze badges
answered Oct 31 '09 at 22:28
Matt BakerMatt Baker
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Restoring MySQL database from physical files
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edited Jul 25 '15 at 20:24
Benoit Duffez
9,1201010 gold badges6565 silver badges113113 bronze badges
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Skip callbacks on Factory Girl and Rspec
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edited Aug 23 '12 at 16:24
answered Jan 12 '12 at 16:24
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How to add a touch event to a UIView?
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In iOS 3.2 and higher, you can use gesture recognizers. For example, this is how you would handle a tap event:
//The setup code (in viewDidLoad in your view controller)
UITapGestureRecognizer *singleFingerTap =
[[UITapGestureRecog...
enum - getting value of enum on string conversion
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def __str__(self):
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... return str(self.value)
... x = 1
... y = 2
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>>> D.x
<D.x: 1>
>>> print(D.x)
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