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Is there a unique Android device ID?
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kelvin
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answered May 7 '10 at 0:49
Anthony ForloneyAnthony Forloney
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Will using 'var' affect performance?
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edited Jun 20 at 9:12
Community♦
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answered Dec 10 '08 at 17:21
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Go to beginning of line without opening new line in VI
... Stephan
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answered Apr 20 '12 at 9:33
Xavier T.Xavier T.
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Heroku Postgres - terminate hung query (idle in transaction)
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139
This is a general Postgres answer, and not specific to heroku
(The simple-stupid answer to th...
Is there a javadoc tag for documenting generic type parameters?
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9
@skaffman A bit late of course, but it raises the question, it does not beg the question.
– Thor84no
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Are static fields open for garbage collection?
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answered Jan 17 '09 at 9:44
bruno condebruno conde
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How to find difference between two Joda-Time DateTimes in minutes
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79
This will get you the difference between two DateTime objects in milliseconds:
DateTime d1 = ne...
Add a new element to an array without specifying the index in Bash
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1599
Yes there is:
ARRAY=()
ARRAY+=('foo')
ARRAY+=('bar')
Bash Reference Manual:
In the conte...
Is there a working C++ refactoring tool? [closed]
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19 Answers
19
Active
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How to create index on JSON field in Postgres?
In PostgreSQL 9.3 Beta 2 (?), how do I create an index on a JSON field? I tried it using the -> operator used for hstore but got the following error:
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