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Posted to issues@hop.apache.org by "liosc (via GitHub)" <gi...@apache.org> on 2024/01/09 07:31:24 UTC

[I] Javascript transform changes last digit in big integer numbers (hop)

liosc opened a new issue, #3539:
URL: https://github.com/apache/hop/issues/3539

   ### Apache Hop version?
   
   2.7.0-20231117.105351-1
   
   ### Java version?
   
   Eclipse Adoptium\jdk-11.0.15.10-hotspot
   
   ### Operating system
   
   Windows
   
   ### What happened?
   
   In case you have an integer number with more than 16 digits, last digit is changed by javascript even simply logging the field. 
   
   ### Issue Priority
   
   Priority: 2
   
   ### Issue Component
   
   Component: Transforms


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Re: [I] Javascript transform changes last digit in big integer numbers (hop)

Posted by "hansva (via GitHub)" <gi...@apache.org>.
hansva commented on issue #3539:
URL: https://github.com/apache/hop/issues/3539#issuecomment-1908913157

   Thank you for the sample @liosc 
   The filetypes are a github limitation, not our choice. 


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Re: [I] Javascript transform changes last digit in big integer numbers (hop)

Posted by "nadment (via GitHub)" <gi...@apache.org>.
nadment commented on issue #3539:
URL: https://github.com/apache/hop/issues/3539#issuecomment-1908805625

   Can you create a simple pipeline to reproduce this error?


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Re: [I] Javascript transform changes last digit in big integer numbers (hop)

Posted by "mattcasters (via GitHub)" <gi...@apache.org>.
mattcasters commented on issue #3539:
URL: https://github.com/apache/hop/issues/3539#issuecomment-5038930800

   This is caused by the JavaScript language itself.
   
   ```
   JavaScript numbers are always stored as double precision floating point numbers, following the international IEEE 754 standard.
   ```
   
   TODO: document this loss of precision due to Integer-to-Double-Integer conversions.


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Re: [I] Javascript transform changes last digit in big integer numbers (hop)

Posted by "hansva (via GitHub)" <gi...@apache.org>.
hansva closed issue #3539: Javascript transform changes last digit in big integer numbers
URL: https://github.com/apache/hop/issues/3539


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Re: [I] Javascript transform changes last digit in big integer numbers (hop)

Posted by "liosc (via GitHub)" <gi...@apache.org>.
liosc commented on issue #3539:
URL: https://github.com/apache/hop/issues/3539#issuecomment-1908874778

   I did but I was not able to attach it to the ticket cause it let me add only some types of file, not .hpl. Now I noticed there is zip type so I zipped the pipeline and drop it here. Let me know if you can use it.
   
   P.S.: is it by choice that it is not possible to attach .hpl files or is it only me experiencing this limitation?
   
   [javascript-big-integer-bad-rounding.zip](https://github.com/apache/hop/files/14043358/javascript-big-integer-bad-rounding.zip)
   


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