大约有 1,490 项符合查询结果（耗时：0.0111秒） [XML]
ElasticSearch - Return Unique Values
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Elasticsearch 1.1+ has the Cardinality Aggregation which will give you a unique count
Note that it is actually an approximation and accuracy may diminish with high-cardinality datasets, but it's generally pretty accurate in my testing.
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Why do some claim that Java's implementation of generics is bad?
...ute and introduce new collection types. (.NET generics in 2.0 didn't break 1.1 apps.)
– Jon Skeet
Feb 7 '09 at 11:13
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simple HTTP server in Java using only Java SE API
...ess. By this I mean attacks where a request like GET /../../blahblah http/1.1 is issued and the server walks above the website root and into system file land, serving files that can be used to compromise or remotely attack the system, like a password file.
– Lawrence Dol
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Is R's apply family more than syntactic sugar?
...2-core computer. I did this with 5e6 elements - a loop was 2.9 seconds vs. 3.1 seconds for vapply.
– Cole
Jan 1 at 16:05
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Why doesn't println! work in Rust unit tests?
...cross. I just used this option exactly as described in this answer in rust 1.1 (cargo 0.2.0) and it worked exactly as advertised.
– Glenn McAllister
Jul 30 '15 at 18:32
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How to drop columns by name in a data frame
...tly the same as data.frame. There are in fact lots of differences, see FAQ 1.1 and FAQ 2.17. You have been warned!
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xcodebuild says does not contain scheme
...ank you! Calabash projects with Swift frameworks fail to build with XCode6.1.1 because you have to build them from a scheme. This gem is awesome.
– David
Jan 30 '15 at 6:12
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Reverse a string in Python
...ean: 5.9μs, max: 10.2μs
reverse_loop : min: 3.0μs, mean: 3.1μs, max: 6.8μs
list_comprehension : min: 4.2μs, mean: 4.5μs, max: 31.7μs
reverse_func : min: 75.4μs, mean: 76.6μs, max: 109.5μs
reverse_reduce : min: 749.2μs, mean: 882.4μs, max: 2310...
Set cURL to use local virtual hosts
...7.0.0.1 - - [09/Aug/2010:11:42:55 -0500] "POST /users/getSettings.xml HTTP/1.1" 499 0 "-" "-" and curl reported Operation timed out after 10000 milliseconds with 0 bytes received So I guess that cURL is actually handling the vhost since the access.log shows the request. Then again, it might now be ...
How to pip install a package with min and max version range?
...hing that was added in v1.2.0, for example, == 1.* will improperly accept v1.1.0. The ~= (or >= plus < if you find that hard to read) operator is better because it encourages being correctly specific.
– Maxpm
Feb 15 at 1:56
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