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Check if a Postgres JSON array contains a string
...ch 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 = '"carrots"'
d(# );
Execution time: 3084.927 ms
d=...
Best practices for in-app database migration for Sqlite
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RngbusRngbus
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What's the difference between findAndModify and update in MongoDB?
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answered May 28 '12 at 3:21
Asya KamskyAsya Kamsky
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How to make PyCharm always show line numbers
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345
Version 2.6 and above:
PyCharm (far left menu) -> Preferences... -> Editor (bottom left ...
Android RelativeLayout programmatically Set “centerInParent”
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3 Answers
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Can I use conditional statements with EJS templates (in JMVC)?
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answered Jan 7 '13 at 17:37
JbirdJbird
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What is the point of “final class” in Java?
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543
First of all, I recommend this article: Java: When to create a final class
If they do, whe...
How do I fix the “You don't have write permissions into the /usr/bin directory” error when installin
I'm trying to install Rails 3 on a brand new MacBook Pro running OS X 10.6.3, Ruby 1.8.7, and Rails 2.3.5 and I'm wondering if I've hosed myself. So far, I've run these commands:
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Django import error - no module named django.conf.urls.defaults
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193
django.conf.urls.defaults has been removed in Django 1.6. If the problem was in your own code, y...