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Check if a Postgres JSON array contains a string
...ents on a table of 1,000,000 rabbits where each rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 solution
d=# explain analyze select info->>'name' from rabbits where exists (
d(# select 1 from json_array_elements(info->'food') as food
d(# where food::text = '"carr...
Given an array of numbers, return array of products of all other numbers (no division)
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answered Apr 21 '10 at 6:09
Michael AndersonMichael Anderson
57.2k77 gold badges110110 silver badges159159 bronze badges
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What is the difference between _tmain() and main() in C++?
...provide?
– joshcomley
May 22 '09 at 10:03
2
-1 None of the three options listed are practical. Th...
How do I use the conditional operator (? :) in Ruby?
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answered Nov 23 '10 at 5:03
user166390user166390
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Dynamically update values of a chartjs chart
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101
Update: Looks like chartjs has been updated (see comment below). There are some examples up t...
How do I accomplish an if/else in mustache.js?
...oops." Yeeeeaaaaaa....
– boxed
Nov 10 '15 at 13:25
7
@boxed, technically you're right, the inver...
ActiveRecord: size vs count
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edited Jul 10 '12 at 22:15
Jo Liss
22.5k1414 gold badges101101 silver badges150150 bronze badges
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Python call function within class
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Jeff MercadoJeff Mercado
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OS X Terminal Colors [closed]
...to enable the global
terminal colors.
Edit your .bash_profile (since OS X 10.8) — or (for 10.7 and earlier): .profile or .bashrc or /etc/profile (depending on availability) — in your home directory and add following code:
export CLICOLOR=1
export LSCOLORS=GxFxCxDxBxegedabagaced
CLICOLOR=1 si...
Does ARC support dispatch queues?
...ng answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6.0 or Mac OS X 10.8 or later
ARC will manage your queue for you. You do not need to (an...