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How do I force Postgres to use a particular index?
How do I force Postgres to use an index when it would otherwise insist on doing a sequential scan?
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Can I set null as the default value for a @Value in Spring?
I'm currently using the @Value Spring 3.1.x annotation like this:
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Create new tmux session from inside a tmux session
...ches or switches to a given session, depending on whether one is inside tmux and the session exists.
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Can an AJAX response set a cookie?
Can an AJAX response set a cookie? If not, what is my alternative solution? Should I set it with Javascript or something similar?
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Understanding MongoDB BSON Document size limit
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First off, this actually is being raised in the next version to 8MB or 16MB ... but I think to put this into perspective, Eliot from 10gen (who developed MongoDB) puts it best:
EDIT: The size has been officially 'raised' to 16MB
So, on your blog example, 4MB is
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Generating a UUID in Postgres for Insert statement?
...it.
For modern PostgreSQL versions (9.1 and newer) that's easy:
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
but for 9.0 and below you must instead run the SQL script to load the extension. See the documentation for contrib modules in 8.4.
For Pg 9.1 and newer instead read the current contrib d...
'size_t' vs 'container::size_type'
...underlying type could be used. So container::size_type is preferable for maximum generality.
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CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
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A trick that works is to position box #2 with position: absolute instead of position: relative. We usually put a position: relative on an outer box (here box #2) when we want an inner box (here box #3) with position: absolute to be positioned relative to the ou...
Combine --user with --prefix error with setup.py install
... new option --user . (The option is currently undocumented , however it exists for Python 2.6+; you can see the help by running python setup.py install --help .)
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iOS 7 TextKit - How to insert images inline with text?
I am trying to get the following effect using a UITextView:
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