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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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CFLAGS vs CPPFLAGS
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answered May 3 '10 at 7:29
Scott WalesScott Wales
9,91244 gold badges3030 silver badges2929 bronze badges
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All falsey values in JavaScript
...0.0, and hex form 0x0 (thanks RBT)
Zero of BigInt type: 0n and -0n (new in 2020, thanks GetMeARemoteJob)
"", '' and `` - strings of length 0
null
undefined
NaN
document.all (in HTML browsers only)
This is a weird one. document.all is a falsey object, with typeof as undefined. It was a Microsoft-p...
Export from sqlite to csv using shell script
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125
sqlite3
You have a separate call to sqlite3 for each line; by the time your select runs, your ....
How to sort a list of objects based on an attribute of the objects?
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edited Sep 9 '19 at 12:57
Dorian Turba
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answered Dec 31 '08 at...
How to save picture to iPhone photo library?
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Jeremy
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answered Oct 7 '08 at 15:32
Martin GordonMartin Gordon
35.5...
How can I split a shell command over multiple lines when using an IF statement?
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2 Answers
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How to detect the currently pressed key?
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edited Dec 26 '13 at 21:54
vahid abdi
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Calculate a percent with SCSS/SASS
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218
Have you tried the percentage function ?
$my_width: percentage(4/12);
div{
width: $my_width;
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Setting global styles for Views in Android
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251
Actually, you can set a default style for TextViews (and most other built-in widgets) without ...