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Is there any performance gain in indexing a boolean field?
...vant rows.
– ilanco
May 9 '12 at 22:04
4
otherwise it would scan the whole index. (which is just ...
Why doesn't git recognize that my file has been changed, therefore git add not working
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edited Dec 20 '19 at 17:04
Jeromy French
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a...
Python: How to get stdout after running os.system? [duplicate]
...ution (subprocess.call("cmd.exe dir",shell=False) )is work under ubuntu 12.04 except shell=True. Thanks!
– JohnnyLinTW
Aug 8 '16 at 9:44
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rsync: how can I configure it to create target directory on server?
...haviour.
Just to show you what I get when using rsync (3.0.9 on Ubuntu 12.04)
$ rsync -rvv *.txt user@remote.machine:/tmp/newdir/
opening connection using: ssh -l user remote.machine rsync --server -vvre.iLsf . /tmp/newdir/
user@remote.machine's password:
sending incremental file list
created dire...
How do I alter the position of a column in a PostgreSQL database table?
...icle.
– Bill Karwin
Nov 13 '08 at 0:04
2
'dump the database' :: great way to damage data. and hen...
Do HTML5 custom data attributes “work” in IE 6?
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– Paul D. Waite
Mar 10 '10 at 11:04
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Is there an alternative to string.Replace that is case-insensitive?
...se);
– Helge Klein
Feb 28 '11 at 14:04
8
Please watch out when using Regex.Escape in Regex.Replac...
How to read a single character from the user?
...keys like Ctrl+C, Ctrl+D and Ctrl+Z are caught and returned (as '\x03', '\x04' and '\x1a' respectively); your program can be come difficult to abort.
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How do I sort a dictionary by value?
...main.
– SabreWolfy
Jun 18 '12 at 10:04
2
Dicts can now be sorted, starting with CPython 3.6 and a...
What is the difference between concurrent programming and parallel programming?
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https://joearms.github.io/published/2013-04-05-concurrent-and-parallel-programming.html
Concurrent = Two queues and one coffee machine.
Parallel = Two queues and two coffee machines.
sha...