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What is the difference between partitioning and bucketing a table in Hive ?

... Partitioning data is often used for distributing load horizontally, this has performance benefit, and helps in organizing data in a logical fashion. Example: if we are dealing with a large employee table and often run queries with WHERE clauses that restrict the results to a particular ...
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Can I get Memcached running on a Windows (x64) 64bit environment?

...wnload. Now they have made it part of their commercial No-SQL DB offering called Membase. It can be configured to run in Memcached-only mode (i.e. without persistence) and there's a 100% free version too. Check it out here: http://www.membase.org/downloads UPDATE 3: MemBase has slept with CouchDB a...
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python setup.py uninstall

I have installed a python package with python setup.py install . 16 Answers 16 ...
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JavaScript global event mechanism

... error handling facility in JavaScript? The use case is catching function calls from flash that are not defined. 10 Answers...
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Programmatically find the number of cores on a machine

...ne, if a system is capable of turning some off they might not be counted. Calling sysconf with "_SC_NPROCESSORS_CONF" will return the total CPUs configured. – Chris S Apr 23 '11 at 18:43 ...
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Which characters make a URL invalid?

... @techiferous, Yeah, I forgot to allow "%" escaped characters. It should've looked more like: /^([!#$&-;=?-[]_a-z~]|%[0-9a-fA-F]{2})+$/ Was there anything else that you found it should've been accepting? (Just to be clear, that regex only checks ...
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获取文件系统映像及恢复删除的数据(FAT文件系统格式描述) - C/C++ - 清泛...

...iGetClassDevs(&CLSID_DeviceInstance, NULL, NULL, DIGCF_PRESENT); //getting all devices with a removable disk guid if ( INVALID_HANDLE_VALUE == hDevInfo ) { return devInfos;//exit if there are no devices } try { st...
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Safely remove migration In Laravel

... I accidentally created a migration with a bad name (command: php artisan migrate:make). I did not run (php artisan migrate) the migration, so I decided to remove it. My steps: Manually delete the migration file under app/database/mig...
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Writing your own STL Container

...or_tag,std::random_access_iterator_tag. Also note that the below is technically more strict than required, but this is the idea. Note that the vast majority of the "standard" functions are technically optional, due to the awesomeness that is iterators. template <class T, class A = std::allocator...
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What is the meaning of “POSIX”?

... and I read it every time I encounter the term. The fact is that I never really understood what it is. 14 Answers ...