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Can PostgreSQL index array columns?

...tage from the original Berkeley design of Postgres and very hard to change now. And it's generally working just fine. Here is a thread on pgsql-bugs with Tom Lane commenting on this. Some PostGis functions (like ST_DWithin()) seem to violate this principal, but that is not so. Those functions are r...
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]

...me the meaning of @classmethod and @staticmethod in python? I need to know the difference and the meaning. 12 Answers ...
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How do I get the base URL with PHP?

... this keeps redirecting to same page user is at now. how can I fix this to redirect to home page? Im on apache, localhost. php7 – Joey Dec 14 '17 at 8:06 ...
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How to list all tags along with the full message in git?

...to do something more than what this question is asking. But it is good to know that for certain situations the -l is needed. – still_dreaming_1 Jul 2 '15 at 15:30 ...
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How can I find script's directory with Python? [duplicate]

...ich in most cases will be the same as the directory containing the script. Now if you compile your script to binary and then execute it, well, then sys.path[0] would refer to %temp% since exe runs from temp. At least this is the case on Windows. – user6037143 N...
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Should I use alias or alias_method?

...name” picks the method “full_name” defined in “Developer” class. Now lets try with alias. class User def full_name puts "Johnnie Walker" end def self.add_rename alias name full_name end end class Developer < User def full_name puts "Geeky geek" end add_rena...
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How do I use a Boolean in Python?

Does Python actually contain a Boolean value? I know that you can do: 7 Answers 7 ...
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Best practice multi language website

I've been struggling with this question for quite some months now, but I haven't been in a situation that I needed to explore all possible options before. Right now, I feel like it's time to get to know the possibilities and create my own personal preference to use in my upcoming projects. ...
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How can I sanitize user input with PHP?

...'s a common misconception that user input can be filtered. PHP even has a (now deprecated) "feature", called magic-quotes, that builds on this idea. It's nonsense. Forget about filtering (or cleaning, or whatever people call it). What you should do, to avoid problems, is quite simple: whenever you ...
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What breaking changes are introduced in C++11?

I know that at least one of the changes in C++11 that will cause some old code to stop compiling: the introduction of explicit operator bool() in the standard library, replacing old instances of operator void*() . Granted, the code that this will break is probably code that should not have been v...