Saturday, January 15, 2011

Comparing file tables with DiffKit

In order for DiffKit to diff two Tables, a Table simply being a set of rows, it must know how to align the rows from the left side Table with those on the right. It does that using a key; one or more columns. Before the row sets can be diff’d, they must be sorted. If you are using a DB Source, DiffKit will sort the Tables for you and you don’t need to do anything. If you are using a File Source, DiffKit will not sort the files for you. In the future, I plan to modify DiffKit to do the sorting for you, but in the meantime you must sort the files yourself.
When you perform the sort, you need to ensure that you are sorting using the same comparison function that DiffKit will use internally to compare rows. That’s because comparing rows internally is how DiffKit figures out ROW_DIFFs.
If you are using a MagicPlan to diff File Sources, DiffKit has no data type information about the columns; MagicPlan doesn’t allow it. It’s just a text file, so DiffKit has to assume that all columns are data type String. In that case, DiffKit will use a lexical (String) sort internally to compare rows. And you must ensure that you have also used a lexical sort when you sort the file. I believe that the default comparison term for Unix sort is lexical.
If you are using a PassthroughPlan to diff File sources, you need to tell DiffKit what are the types of each column. If in the PassthroughPlan you have told DiffKit that the key column is type String, then DiffKit behaves exactly as in the case of the MagicPlan, and you must use a lexical sort on the file. However, if in the PassthroughPlan you tell DiffKit that the key has a numeric data type, then DiffKit will internally use a numeric comparison on the rows, and you must sort the file using a numeric comparison.
Bottom line:
DiffKit internal comparison ==(must equal)== comparison used to sort File. DiffKit internal comparison is based on data type(s) of the key.
MagicPlan always results in String data type(s) for the key. PassthroughPlan results in whatever column data types you specify for the key.

81 comments:

  1. With an ideal country, garden storage sheds may come with ramps like standard.louis vuitton vaskor , Not much a great deal more irritating as opposed to getting your revolutionary lose, getting ready to exercise with all your big items, and recognising it's a really number harder as opposed to the idea appears!

    Certainly, aside from expecting a different inividual we are able to a personally, you can take you a lot easier because they build a ramp.ugg bottes ,



    At this time, to build any ramp you will have to have a preparation report.outlet mbt , You should have two piace of cake blocks that one can discover at a computer hardware store towards you : if you are for doubting the fact that about whether they sell off him or her, provide the a fabulous call and they are able to advise you.

    ReplyDelete


  2. Thanks for the good words! Really appreciated. Great post. I ve been commenting a lot on a few blogs recently, but I had nt thought about my approach until you brought it up.

    SAP training in Chennai

    ReplyDelete


  3. Great and useful article. Creating content regularly is very tough. Your points are motivated me to move on.


    SEO Company in Chennai

    ReplyDelete
  4. Superb. I really enjoyed very much with this article here. Really it is an amazing article I had ever read. I hope it will help a lot for all. Thank you so much for this amazing posts and please keep update like this excellent article.thank you for sharing such a great blog with us. expecting for your.

    seo company in india

    ReplyDelete
  5. Hey Nice Blog!! Thanks For Sharing!!!Wonderful blog & good post.Its really helpful for me, waiting for a more new post. Keep Blogging!
    SEO company in coimbatore
    Digital Marketing Company in Coimbatore
    SEO Services in coimbatore

    ReplyDelete
  6. I am read your article and I really like to read it, it’s help me lot of time, keep share like this type of useful and valuable information, I hope you will be post again, am really waiting for your next post, keep working, I am really happy and satisfied with your this article, thanks to read my comment, if any one searching website designing company in India please visit my website.
    Web Designing Company in Delhi

    ReplyDelete
  7. That was such an awesome content to read and going through it.Thanks for such a good information.our product related for Servo Stabilizer Manufacturer in india and transformer.
    What is Servo Voltage Stabilizer?

    Distribution Transformers Manufacturer in india

    What is Step Down Transformer?

    ReplyDelete
  8. Nice Blog, keep it up for more updates about this type of blog.Carolina Classics is the manufacturer of best F-100 Classic Ford Truck Parts| Buy Ford F100 truck parts online at Carolina Classics.
    F-100 Ford Truck Parts

    ReplyDelete
  9. Thanks a lot, for sharing this superb idea, I got very useful information with your point you have mentioned in this article it’s really helpful for me.
    You can anytime plan your Plastic Surgery In India with Indo American Health as we have a network of hospitals to serve the best possible treatment. We will provide assistance throughout your journey, begin it now with us.

    ReplyDelete
  10. Book our affordable, quick & on-time best silver service taxi Melbourne with instant booking and enjoy your seamless travel with our Silver Service Cabs Melbourne.

    silver taxi service
    silver service taxi
    silver service cabs
    silver service taxi melbourne
    silver service cab melbourne

    ReplyDelete
  11. Thank you so much for this amazing information sharing with us. Visit Appslure WebSolution for the best mobile app development company in Gurgaon
    Mobile app development company in gurgaon

    ReplyDelete
  12. Great Article. Thank you for sharing! Really an awesome post for every one.

    IEEE Final Year projects Project Centers in Chennai are consistently sought after. Final Year Students Projects take a shot at them to improve their aptitudes, while specialists like the enjoyment in interfering with innovation. For experts, it's an alternate ball game through and through. Smaller than expected IEEE Final Year project centers ground for all fragments of CSE & IT engineers hoping to assemble. Final Year Project Domains for IT It gives you tips and rules that is progressively critical to consider while choosing any final year project point.

    JavaScript Training in Chennai

    JavaScript Training in Chennai

    ReplyDelete
  13. I am glad to read this post, it's a good one. I am always looking for quality posts and articles and this is what I found here, I hope you will be adding more in the future. Thanks for sharing.
    Website Design Fort Lauderdale

    ReplyDelete
  14. I just found this blog and have high hopes for it to continue. Keep up the great work, its hard to find good ones. I have added to my favorites. Thank You Wanna Party

    ReplyDelete
  15. Buy Medicines Online from Ship From CA. No prescription is required for Buy Hydrocodone, Oxycodone, Percocet, Vicodin and Oxycontin Online Overnight from us.
    shipfromca

    ReplyDelete
  16. Buy hydrocodone online at first-class prices. Hydrocodone or Dihydrocodeinone is used for the treatment of moderate to severe level ache. Hydrocodone dosage is used to treat those people, who need medicine around-the-clock and for folks that do not get pain comfort from other medicinal drugs.

    ReplyDelete
  17. At ShipFromCA, you can Buy oxycodone online. Oxycodone is a reasonably effective opioid ache remedy. It is generally usually taken for the remedy of mild to extreme pain. Oxycodone improves the fine of the existence of someone with many varieties of ache. The doctor prescribes oxycodone dose from 10 mg to 80 mg relying on the intensity of ache and patients’ scientific history.

    ReplyDelete
  18. Vicodin is an aggregate of narcotic hydrocodone and non-narcotic ache reliever acetaminophen. This drug is helpful for relieving mild to moderately severe acne. It is a prescribed narcotic drug. Vicodin is likewise used as a cough suppressant.If overused, this drug may be addictive. Buy vicodin online
    at a low price and rapid transport from Shipfromca.Com

    ReplyDelete
  19. Norco is an aggregate of acetaminophen and hydrocodone. Hydrocodone is an opioid pain medicine while Acetaminophen is a less potent pain reliever which will increase the effectiveness of hydrocodone. This drug is prescribed for slight to moderately extreme pain. The dosage of this majorly relies upon the age factor. Buy norco online from ShipFromCA at Low Prices.

    ReplyDelete
  20. Buy percocet online. Percocet is a mixture of acetaminophen & oxycodone. This is an opioid/non-opioid pain reliever appropriate for both slight as nicely as extreme pain and also situations associated with pain. Buy Percocet online safely without annoying about the prescription, right here at Ship From CA.

    ReplyDelete
  21. ShipFromCA allows you to reserve oc 5 – 80 mg online without RX to cast off your ache. Opioid analgesic is the brand name for oxycontin containing the active factor oxycodone. The same is also observed in Percocet and Percodan. If you are stricken by ache with cancer, backache, or arthritis, then Oxycontin could be a powerful medicine for you. Buy oxycontin online from ShipFromCA pharmacy.

    ReplyDelete
  22. Here at the ShipFromCA web site, we tend to pride ourselves on giving all of our website visitors access to a spread of unengaged to use guides, articles and up to date news stories concerning the Buy adderall online.

    ReplyDelete
  23. Ambien is used to deal with a sure sleep problem (insomnia) in adults. If you have hassle falling asleep, it facilitates you go to sleep faster, so that you can get a higher night’s rest. Zolpidem belongs to a category of drugs referred to as sedative-hypnotics. It acts in your brain to produce a relaxing effect. For that, you can Buy ambien online.

    ReplyDelete
  24. I visit your website www.quickacrepair.in. I am very much impressed by the blogs on your website. I recently purchased a split ac and your blog provides me great insight into AC Repair and Services .It also allows me to enrich my knowledge about various types of ac. I am a big fan of yours and find your website highly informative. Thank you for posting such unique and amazing blogs.

    ReplyDelete
  25. Best Deals at Safemartshop, an international prescription service provider, which contracts with International dispensaries and USA pharmacies, is a leader in referring orders for prescription and non-prescription medications on behalf of customers throughout the world
    Safemartshop
    buy hydrocodone online
    buy oxycodone online
    buy oxycontin online
    buy percocet online
    buy vicodin online
    buy norco online
    buy adderall online
    buy xanax online

    ReplyDelete
  26. Arena Infosolution is the best company for the Digital Marketing Internship in Jaipur. Our company offers an internship that gives a good job after completion of the internship which gives a path to your career and makes your future bright in digital marketing.

    https://arenainfosolution.com/digital-marketing-internship-in-jaipur/

    ReplyDelete
  27. I read this article. I think You have put a lot of effort to create this article. I appreciate your work.
    Visit us for Printed Customized Ruffty Branded Hoodie.

    ReplyDelete
  28. Nice and interesting information and informative too.
    Can you please let me know the good attraction places we can visit: Maldives tour packages

    ReplyDelete
  29. Krishna office furniture systems is a Delhi based manufacturing company for office chairs , Modular office workstation in Delhi/NCR and Modular Furniture Manufacturer in India. For the past 8 years, we have been offering quality Office Furniture, which includes All Office Chairs, Sofa , Computer Workstation, Conference Table, Executive Desking, Modular Furniture, Desking System, Office Storage, Reception Table, Seating Systems, Office Partitions, Office Desk, Office Workstation, Cafeteria Tables, Electrical work, Interior Work (False ceiling, Flooring, paneling , all partition , paint, pop , wallpaper & blinds) . Manufactured using quality material, our range finds extensive application in all offices, hotels, Banks, institute, school, and restaurants.
    Office Furniture Manufacturer

    Modular Furniture Manufacturer

    office workstation

    Modular Furniture Manufacturer in delhi

    Office Furniture Manufacturer in delhi

    corporate furniture

    Modular Toilet Cubicle Modular Toilet Cubicle

    office furniture delhi

    corporate furniture gurgaon
    school furniture

    ReplyDelete
  30. FURNISHYA, a Home Furnishing brand, Furnishya have many traditional designs on bed, bath and kitchen. Our products are not only elegant, eclectic and eccentric, but are also thoughtfully crafted to make your experience of living a comfortable lifestyle, more comfortable.
    With thoughtful living at heart, we create products to give you an experience. And how do we do it? We do it with love, care and innovation to make, better.
    We created our patented innovation - We created curtain, cushions cover with 100% polyester fabric. We created towels that get softer and more absorbent with every wash, just so you can have a better after-experience, after bathing. This list of innovation goes on, just like your list of cheerful moments with quick-dry, antimicrobial and eco-friendly linen.
    FURNISHYA is attempting to revive India's rich textile company on online medium. Our brand in collaboration with modern designers is constantly inspiring creative people to achieve stand-out boho and fusion designs in both clothing and home furnishing. Even more, the traditional fabric merchant heritage of the founding team allows us to pay meticulous attention while curating each piece of fabric that we exhibit at our online store. These fabrics are sourced directly from the masters of the traditional craft and even from the traditional keepers.
    furnishya

    Designer Curtains Online

    Buy Curtains Online

    Window Curtain Online

    best curtains online

    curtain fabric storee

    curtain designs for bedroom,

    curtain designs for living room

    best curtains for living room

    ReplyDelete
  31. Given so much info in it, These type of articles keeps the user's interest in the website, and keep on sharing more.
    AC REPAIR AND SERVICE
    GAS STOVE REPAIR
    LAPTOP REPAIR
    WASHING MACHINE REPAIR

    ReplyDelete
  32. I feel happy about and learning more about this topic. keep sharing your knowledge regularly for my future reference. Thanks for sharing information like this. The information which you have provided is better than any blog. For more info you can visit us.
    AC REPAIR AND SERVICE
    GAS STOVE REPAIR
    LAPTOP REPAIR
    WASHING MACHINE REPAIR

    ReplyDelete
  33. I read your post, it was really a very good topic and the content that is in it is even better. I thank you very much for sharing this post with us and I would like to read your post even further.

    Escort Girls Service
    Delhi Escort Service
    Chennai Call Girls
    Call Girls in Bangalore
    Mumbai Escort Service

    ReplyDelete
  34. FURNISHYA is attempting to revive India's rich textile company on online medium. Our brand in collaboration with modern designers is constantly inspiring creative people to achieve stand-out boho and fusion designs in both clothing and home furnishing. Even more, the traditional fabric merchant heritage of the founding team allows us to pay meticulous attention while curating each piece of fabric that we exhibit at our online store. These fabrics are sourced directly from the masters of the traditional craft and even from the traditional keepers.

    furnishya

    Designer Curtains Online

    Buy Curtains Online

    Window Curtain Online

    best curtains online

    curtain fabric storee

    curtain designs for bedroom,

    curtain designs for living room

    best curtains for living room

    ReplyDelete
  35. hy thanks for sharing this information.very helpful and useful thanks

    ReplyDelete
  36. hy thanks for sharing this information.very helpful and useful thanks

    ReplyDelete
  37. Very nice blog and articles. I am realy very happy to visit your blog. Now I am found which I actually want. I check your blog everyday and try to learn something from your blog. Thank you and waiting for your new post. thanks

    ReplyDelete
  38. FURNISHYA, a Home Furnishing brand, Furnishya have many traditional designs on bed, bath and kitchen. Our products are not only elegant, eclectic and eccentric, but are also thoughtfully crafted to make your experience of living a comfortable lifestyle, more comfortable.
    With thoughtful living at heart, we create products to give you an experience. And how do we do it? We do it with love, care and innovation to make, better.
    Home Kitchen

    ReplyDelete
  39. Usually, I never comment on post but your article is convincing. You're doing a great job, keep it up.

    Online Front Website Design and Digital Marketing Company. We have Full-service web solutions to help your business grow online leads, calls, and revenue.


    Digital Marketing Agency
    Website Designing Comapany in Delhi
    SEO services in Delhi
    Social Media Management Company in delhi
    Digital Marketing Company in Delhi

    ReplyDelete
  40. Thanks for sharing this, I actually appreciate you taking the time to share with everybody.
    Best Data Science Training In Hyderabad

    ReplyDelete
  41. Communicating: This science communicates or serves data using data reporting, data visualization, business intelligence and decision-making models. data science course syllabus

    ReplyDelete