Hello everyone,
I would like to provide you with all the changes in VXQuery during the
first evaluation of GSoC concerning my indexing proposal [1].
Basically, I have addressed 3 of the VXQuery issues to clean up indexing
query statements. Following are the issues described in more details:
VXQUERY-228: collection-from-index adds unnecessary header tags. For
example we have the following query:
|for||$x in
collection-from-index(||"path-to-collection"||,||"/bookstore/book"||)/book|
|The second "/book" is redundant since it is included in the search
path, so we remove it.|
VXQUERY-196: Move XPath out of arguments for collection-from-index.
Collection-from-index had two arguments (path to the indexed collection,
path to be searched in the index).
We remove the second argument since we get it from the path used after
the function call, the same way that "collection" does now.
VXQUERY-204: Hide the index usage from the user. We replace the
collection-from-index with collection and we decide with a rewrite rule
if there is an index for the specified collection or not. If there is,
we use the index to search for the path. However, we left the
collection-from-index function in case that the user wants to control
the index usage.
The code for all these changes is in [2].
Thanks,
Christina
[1]
https://docs.google.com/document/d/1322DFzb7wHPE3dkIq3KuyCwPWNdLQx49AJlwmvQ2QOY/edit
[2]
https://github.com/apache/vxquery/pull/169/commits/15c3ae46f439e13fb8ee0be6af86ba90fb77c889
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