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How do I modify fields inside the new PostgreSQL JSON datatype?
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$BODY$
LANGUAGE sql IMMUTABLE STRICT
COST 100;
Update: functions are compacted now.
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How to make Twitter Bootstrap menu dropdown on hover rather than click
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top: 11px;
left: -6px;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet" />
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container-fluid">
<a data...
Change column type from string to float in Pandas
...y what you want, but what if you wanted to save some memory and use a more compact dtype, like float32, or int8?
to_numeric() gives you the option to downcast to either 'integer', 'signed', 'unsigned', 'float'. Here's an example for a simple series s of integer type:
>>> s = pd.Series([1, 2...
Are getters and setters poor design? Contradictory advice seen [duplicate]
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183
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How to avoid isset() and empty()
...And empty
IMHO you should think about not just making the app "E_NOTICE compatible", but restructuring the whole thing. Having hundreds of points in your code that regularly try to use non-existent variables sounds like a rather badly structured program. Trying to access non-existent variables sh...
What does Docker add to lxc-tools (the userspace LXC tools)?
... maven, chef, puppet, salt, debian packages, rpms, source tarballs, or any combination of the above, regardless of the configuration of the machines.
Versioning. Docker includes git-like capabilities for tracking successive versions of a container, inspecting the diff between versions, committing ne...
Spring @Transactional - isolation, propagation
...e to answer.
Propagation
Defines how transactions relate to each other. Common options:
Required: Code will always run in a transaction. Creates a new transaction or reuses one if available.
Requires_new: Code will always run in a new transaction. Suspends the current transaction if one exists....
What are “named tuples” in Python?
... the standard tuple syntax. They can be used similarly to struct or other common record types, except that they are immutable. They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in Python 2.4.
For example, it is common to represent a point as a tuple (x, y...
How to create a memory leak in Java?
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community wiki
12 revs, 5 users 51%Daniel Pryden
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Biggest advantage to using ASP.Net MVC vs web forms
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It provides RAD development
Easy development model for developers those coming from winform development.
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edited Aug 15 '11 at 22:56
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