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https://issues.apache.org/jira/browse/VXQUERY-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13643913#comment-13643913
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Yasanka Sameera Horawalavithana edited comment on VXQUERY-91 at 4/30/13 3:22 PM:
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I'm exciting to work on this issue for GSoC 2013. Would anyone like to mentor
this project & give me further information about this project?
> Temporal functions grouped into a common library for byte based storage
> -----------------------------------------------------------------------
>
> Key: VXQUERY-91
> URL: https://issues.apache.org/jira/browse/VXQUERY-91
> Project: VXQuery
> Issue Type: Improvement
> Reporter: Preston Carman
> Assignee: Vinayak Borkar
> Labels: gsoc2013
>
> VXQuery utilizes Algebricks and Hyracks to build a XQuery processor that
> execute on a cluster. Reviewing the list of query languages build upon the
> same base, there is a common need for date/time/duration manipulation. XQuery
> provides a great basis for other languages, like AsterixQL, wrt its
> date/time/duration manipulation features.
> Building a common library of this functionality for XQuery, AsterixQL, and
> other languages on the Hyracks/Algebrix stack would allow for a simplified
> code base.
> In addition to only having to implement these features in one place, the new
> library could fill in the holes in VXQuery's implementation and provide
> missing date/time/duration features for AsterixQL.
> Key Features for Library:
> - Written in Java
> - Optimized to work with out objects (use byte arrays)
> - Standardized date/time/duration API
> - Useful to other Hyracks applications
> Review of tasks:
> - Consolidate date/time/duration code into one library
> - Update XQuery to use the library
> - Validate all XQuery date/time/duration functions through the test harness
> - Create a patch for AsterixQL for to utilize the new library
> Optional tasks:
> - Additional non-XQuery date/time/duration features
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