Preston Carman created VXQUERY-91:
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Summary: 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
VXQuery utilizes Algebricks and Hyracks to build a XQuery process that can run
in distributed system. Reviewing the list of query languages build upon the
same base, there is a common need for temporal functionality. XQuery provides a
great base for other languages, like AsterixQL, in respect to temporal
functionality.
Building a common library of functionality for both XQuery and AsterixQL would
allow for simplified code base. In addition to only having to implement
temporal features in one place. The new library could fill in the holes in
VXQuery's temporal implementation and provide missing temporal features for
AsterixQL. One library would keep more complex temporal features out of the way.
Key Features for Library:
- Written in Java
- Optimized to work with out objects (use byte arrays)
- Standardized temporal API
- Useful to other Hyracks applications
Review of tasks:
- Consolidate temporal code into one library
- Update XQuery to use the library
- Validate all XQuery temporal functions through the test harness
- Create a patch for AsterixQL for to utilize the new library
Optional tasks:
- Temporal Units for the library
- Additional non-XQuery temporal features
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