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Querying DynamoDB by date
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Updated Answer:
DynamoDB allows for specification of secondary indexes to aid in this sort of query. Secondary indexes can either be global, meaning that the index spans the whole table across hash keys, or local meaning that the index would exist within e...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
Performance associated with Arrays and Objects in JavaScript (especially Google V8) would be very interesting to document. I find no comprehensive article on this topic anywhere on the Internet.
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Apache Spark: map vs mapPartitions?
...mit (goo.gl/JZXDCR) highlights that tasks with high per-record overhead perform better with a mapPartition than with a map transformation. This is, according to the presentation, due to the high cost of setting up a new task.
– Mikel Urkia
Sep 4 '14 at 7:29
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Why the switch statement cannot be applied on strings?
... fully understand the notion of a string.
In order to generate the code for a switch statement the compiler must understand what it means for two values to be equal. For items like ints and enums, this is a trivial bit comparison. But how should the compiler compare 2 string values? Case sensi...
Shall we always use [unowned self] inside closure in Swift
...ing an asynchronous network request you do want the closure to retain self for when the request finishes. That object may have otherwise been deallocated but you still want to be able to handle the request finishing.
When to use unowned self or weak self
The only time where you really want to use ...
How do I set up curl to permanently use a proxy? [closed]
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You could try the format username:password@proxy:port.
– Lachlan McD.
Jan 25 '13 at 1:30
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Very simple log4j2 XML configuration file using Console and File appender
...lize your logger
I did set the immediateFlush="false" since this is better for SSD lifetime. If you need the log right away in your log-file remove the parameter or set it to true
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PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...on in bulk, I preferred to break it up into small parts so that it is easy for novice users to understand as well. So my question(s):
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How do you kill a Thread in Java?
...f you are on a PC then its no problem but if you are developing a software for mobile (android i have experienced it) then you will get OutOfMemoryError
– AZ_
Jun 10 '11 at 14:09
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Python Git Module experiences? [closed]
What are people's experiences with any of the Git modules for Python? (I know of GitPython, PyGit, and Dulwich - feel free to mention others if you know of them.)
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