marchpure opened a new pull request #3544: [Carbondata-3631] StringIndexOutOfBoundsException When Inserting Select From a Parquet Table with Empty array/map
URL:
https://github.com/apache/carbondata/pull/3544
Modification reason:
(1) StringIndexOutOfBoundsException When Inserting Select From a Parquet Table with Empty array/map.
(2) ArrayIndexOutOfBuoundsException When Inserting Select From a Parquet Table with a map with empty key and empty value
(3) Result is incorrect when Inserting Select From a Parquet Table with a Struct with Empty String, The result will be null while the correct result is "".
Modification content:
(1) When the input value is ARRAY(), return EMPTY_DATA_RETURN in the FieldConverter.scala, ArrayParserImpl handle it.
(2) When the input value is ARRAY(""), return EMPTY STRING ->"" in the FieldConverter.scala, ArrayParserImpl handle it.
(3) When the input value is MAP("",""), return EMPTY STRING ->"" in the FieldConverter.scala, MapParserImpl handle it.
(4) When the input value is MAP(), return EMPTY_DATA_RETURN ->"" in the FieldConverter.scala, MapParserImpl handle it.
(5) When the input value is Struct(""), the StructParserImpl handle the EMPTY STRING
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [ ] Any interfaces changed?
- [ ] Any backward compatibility impacted?
- [ ] Document update required?
- [ ] Testing done
Please provide details on
- Whether new unit test cases have been added or why no new tests are required?
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- Is it a performance related change? Please attach the performance test report.
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- [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.
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