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Check if a Postgres JSON array contains a string
...te: Here's a demonstration of the performance improvements 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(in...
Generate URL in HTML helper
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answered Sep 18 '09 at 10:27
Darin DimitrovDarin Dimitrov
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Why do I get a warning every time I use malloc?
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answered Aug 4 '09 at 23:19
sepp2ksepp2k
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How can I escape double quotes in XML attributes values?
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answered Oct 18 '10 at 17:11
Sachin ShanbhagSachin Shanbhag
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What does iterator->second mean?
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250
I'm sure you know that a std::vector<X> stores a whole bunch of X objects, right? But if y...
How to add \newpage in Rmarkdown in a smart way?
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\newpage
```{r, echo=FALSE}
1+1
```
\pagebreak
```{r, echo=FALSE}
plot(1:10)
```
This solution assumes you are knitting PDF. For HTML, you can achieve a similar effect by adding a tag <P style="page-break-before: always">. Note that you likely won't see a page break in your browser (HTMLs d...
Turn off iPhone/Safari input element rounding
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670
On iOS 5 and later:
input {
border-radius: 0;
}
input[type="search"] {
-webkit-appearanc...
How do I copy directories recursively with gulp?
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cancerberocancerbero
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How to have no pagebreak after \include in LaTeX
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gschenkgschenk
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Multiple file extensions in OpenFileDialog
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user541686user541686
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