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From "Preston Carman (JIRA)" <>
Subject [jira] [Commented] (VXQUERY-34) Basic String Functions
Date Sat, 23 Jun 2012 01:06:42 GMT


Preston Carman commented on VXQUERY-34:

I created a new ticket for the substring function to track this issue. Also, I started to
fix the changes suggested for string-length and ran into more questions. I posted a question
about the UTF8 string in Hyracks to get more information (!topic/hyracks-users/ygRNTbX4eSg).
Besides the function working for all the string types, the other points 1 and 2 have been
implemented. Thanks for pointing those out, I will use those suggestions in future code.
> Basic String Functions 
> -----------------------
>                 Key: VXQUERY-34
>                 URL:
>             Project: VXQuery
>          Issue Type: Sub-task
>            Reporter: Preston Carman
>              Labels: patch
>         Attachments: BasicStringFunctions2.patch, BasicStringFunctions3.patch, BasicStringFunctions4.patch
> The basic string functions to build help with basic queries.
> fn:concat - Concatenates two or more xs:anyAtomicType arguments cast to xs:string.
> fn:string-join - Returns the xs:string produced by concatenating a sequence of xs:strings
using an optional separator.
> fn:substring - Returns the xs:string located at a specified place within an argument
> fn:string-length - Returns the length of the argument.
> fn:upper-case - Returns the upper-cased value of the argument.
> fn:lower-case - Returns the lower-cased value of the argument.

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