Charles Givre created DRILL-8453:
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Summary: Add XSD Support to XML Reader (Part 1)
Key: DRILL-8453
URL: https://issues.apache.org/jira/browse/DRILL-8453
Project: Apache Drill
Issue Type: Improvement
Components: Format - XML
Affects Versions: 1.21.1
Reporter: Charles Givre
Assignee: Charles Givre
Fix For: 1.21.2
This PR is a part of a series to add better support for reading XML data to
Drill. One of the main challenges is that XML data does not have a way of
inferring data types, nor does it have a way of detecting arrays.
The only way to do this really well is to have a schema. Some XML files link a
schema definition file to the data. This PR adds the capability for Drill to
map XSD schema files into Drill schemas.
The current plan is as follows: Part 1 of this PR simply adds the reader but
adds no new user detectable functionality. Part 2 will include the actual
integration with the XML reader. Part 3 will include the ability to read
arrays.
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