GitHub user mohammadshahidkhan opened a pull request:
https://github.com/apache/carbondata/pull/2498
[CARBONDATA-2729][file-format] Schema Compatibility problem between version
1.3.0 and 1.4.0
**Problem**:
In TableSchema the field Name schemaEvaluation is changed to
schemaEvoluation and in DataMapSchema field name className is changed to
providerName.
Due to this current Carbon version & Version 1.4.0 is not able to properly
de-serialize the schema created with older Carbon Version.
**Solution**
To de-serialize old schema having different field name the multiple values
for SerializedName annotation can be used.
For refrence please refer the [_**gson
PR#699**_](https://github.com/google/gson/pull/699/).
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [X] Any interfaces changed?
NA
- [X] Any backward compatibility impacted?
NA
- [X] Document update required?
NA
- [X] Testing done
Please provide details on
- Whether new unit test cases have been added or why no new tests
are required?
- How it is tested? Please attach test report.
- Is it a performance related change? Please attach the performance
test report.
- Any additional information to help reviewers in testing this
change.
Added test case to verify de-serialization
- [X] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
NA
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mohammadshahidkhan/incubator-carbondata
store_compatibility
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2498.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2498
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commit 12796bdfa6209f4da971d9b161b9bd426ad7c50f
Author: mohammadshahidkhan <mohdshahidkhan1987@...>
Date: 2018-07-02T14:21:03Z
[CARBONDATA-2729][file-format] Schema Compatibility problem between version
1.3.0 and 1.4.0
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