[GitHub] [carbondata] marchpure opened a new pull request #3544: [Carbondata-3631] StringIndexOutOfBoundsException When Inserting Select From a Parquet Table with Empty array/map

[GitBox]

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?
           - 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.
          
    - [ ] For large changes, please consider breaking it into sub-tasks under 
an umbrella JIRA. 
   
   

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