A Delta is a file that represents the changes between two or more revisions of structured or semi-structured data. Use delta-lake tag for questions about Delta Lake file format.
References
Questions tagged [delta]
312 questions
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What is the format of the deltas in a subversion respository, and how badly can I blow it up if I change them in a pre-commit hook?
Help me do some damage! I'm tired of just a half-dozen Google hits that tell me never to do this. Let's muck things up real good! I'm pretty sure that I can get ahold of the actual files in db/transactions, so how can I screw these up in interesting…
John O
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Binary Delta Storage
I'm looking for a binary delta storage solution to version large binary files (digital audio workstation files)
When working with DAW files, the majority of changes, especially near the end of the mix are very small in comparison to the huge amount…
Colton Phillips
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Existing solution for file deltas/versioning in Java
When versioning or optimizing file backups one idea is to use only the delta or data that has been modified.
This sounds like a simple idea at first but actually determining where unmodified data ends and new data starts comes accross as a difficult…
James P.
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Quill.js extending Blot / Parchment changes not captured in delta
I am getting to grips with quill.js- I would like to be able to create a custom blot with content that is preset, but which I can change.. I have figured out how to create a block embed blot from the medium clone guide, but I have noticed that the…
Sean D.
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How does the Google's smart updates technology work?
I know the basics: they compute a difference between two versions and send it to the user's device where it is deployed. Precisely, I am interested in 2 questions:
What changes were made to the server's software and what changes were made to the…
Nikolai Samteladze
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How to identify deltas of changes between two strings?
I have to implement an algorithm which takes as input two strings, and returns an array containing substring ranges of changes.
Say, a range is defined as
typedef struct _NSRange {
NSUInteger location; // Where the affected substring begins
…
Proud Member
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Inexplicable SVN repository size increase from small differences to big files
I can't figure out why small differences to big files are causing my subversion repository to grow so much.
I have a zip file of the contents a database used by some tests. I want to store each new version of the test data in our subversion…
Jon Stafford
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Calculate difference between values with MySQL (PV)
I'm a bit stuck at my Bachelor's thesis and hope you can help me.
In order to evaluate a photovoltaic system I need to calculate the difference between total energy amounts. These are automatically updated in a MySQL-table with a timestamp, but…
Viking_03
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Microsoft Graph fails to report group membership deltas via groups/delta that originate in on-prem AD and sync to Azure
When using the groups delta functionality (described here), group membership changes are not being reported if those changes originate in an on-prem AD environment and sync over to Azure. If those same membership changes originate in Azure, they are…
jmatz
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event movementX and touch delta
I'm building a button number that increases or decreases the time on the slide of the finger. If you move to the right add, if you change direction and backwards ... subtract.
I'm trying, therefore, to recover the delta from a touch action.…
Alberto
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Python Difflib Deltas and Compare Ndiff
I was looking to do something like what I believe change control systems do, they compare two files, and save a small diff each time the file changes.
I've been reading this page: http://docs.python.org/library/difflib.html and it's not sinking in…
NealWalters
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Streaming File Delta Encoding/Decoding
Here's the problem - I want to generate the delta of a binary file (> 1 MB in size) on a server and send the delta to a memory-constrained (low on RAM and no dynamic memory) embedded device over HTTP. Deltas are preferred (as opposed to sending the…
thegreendroid
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ASP.NET Web Api - "PATCH" using Delta<...> with double property not working
From JavaScript client code I am creating the following data:
var employee = {
FirstName: "Rudolf",
Salary: 99
};
I then pass this through an Ajax call to an MVC Web API Controller Action:
using System.Web.Http.OData;
…
Rob L
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KroneckerDelta in matlab
This link shows that there is a kronecker delta function in matlab. However:
>> help kroneckerDelta
kroneckerDelta not found
I am using R2011b, so maybe this wasn't programmed into the toolkit yet?
EDIT:: It works in MuPad, just not in…
yankeefan11
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How do I keep the jump height the same when using delta time?
I'm using delta time so I can make my program frame rate independent.
However I can't get the jump height it be the same, the character always jumps higher on a lower frame rate.
Variables:
const float gravity = 0.0000000014f;
const float jumpVel =…
user2513924
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