[jira] [Updated] (CARBONDATA-2982) CarbonSchemaReader don't support Array<string>

[Akash R Nilugal (Jira)]

     [ https://issues.apache.org/jira/browse/CARBONDATA-2982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

xubo245 updated CARBONDATA-2982:
--------------------------------
    Description:
CarbonSchemaReader don't support Array<string>
When we read schema from index file and the data include array<string> data type

run org.apache.carbondata.examples.sdk.CarbonReaderExample :
{code:java}
    Schema schema = CarbonSchemaReader
                .readSchemaInIndexFile(dataFiles[0].getAbsolutePath())
                .asOriginOrder();
            // Transform the schema
            String[] strings = new String[schema.getFields().length];
            for (int i = 0; i < schema.getFields().length; i++) {
                strings[i] = (schema.getFields())[i].getFieldName();
                System.out.println(strings[i] + "\t" + schema.getFields()[i].getSchemaOrdinal());
            }
{code}

and throw some exception:

{code:java}
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
arrayfield.val0 -1
stringfield 0
shortfield 1
intfield 2
longfield 3
doublefield 4
boolfield 5
datefield 6
timefield 7
decimalfield 8
varcharfield 9
arrayfield 10
Complex child columns projection NOT supported through CarbonReader
java.lang.UnsupportedOperationException: Complex child columns projection NOT supported through CarbonReader
        at org.apache.carbondata.sdk.file.CarbonReaderBuilder.build(CarbonReaderBuilder.java:155)
        at org.apache.carbondata.examples.sdk.CarbonReaderExample.main(CarbonReaderExample.java:110)
{code}


It print arrayfield.val0 -1, child schema

  was:
CarbonSchemaReader don't support Array<string>
When we read schema from index file and the data include array<string> data type

run org.apache.carbondata.examples.sdk.CarbonReaderExample :
{code:java}
    Schema schema = CarbonSchemaReader
                .readSchemaInIndexFile(dataFiles[0].getAbsolutePath())
                .asOriginOrder();
            // Transform the schema
            String[] strings = new String[schema.getFields().length];
            for (int i = 0; i < schema.getFields().length; i++) {
                strings[i] = (schema.getFields())[i].getFieldName();
                System.out.println(strings[i] + "\t" + schema.getFields()[i].getSchemaOrdinal());
            }
{code}

and throw some exception:

{code:java}
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
arrayfield.val0 -1
stringfield 0
shortfield 1
intfield 2
longfield 3
doublefield 4
boolfield 5
datefield 6
timefield 7
decimalfield 8
varcharfield 9
arrayfield 10
Complex child columns projection NOT supported through CarbonReader
java.lang.UnsupportedOperationException: Complex child columns projection NOT supported through CarbonReader
        at org.apache.carbondata.sdk.file.CarbonReaderBuilder.build(CarbonReaderBuilder.java:155)
        at org.apache.carbondata.examples.sdk.CarbonReaderExample.main(CarbonReaderExample.java:110)
{code}

> CarbonSchemaReader don't support Array<string>
> ----------------------------------------------
>
>                 Key: CARBONDATA-2982
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2982
>             Project: CarbonData
>          Issue Type: Bug
>          Components: other
>    Affects Versions: 1.5.0
>            Reporter: xubo245
>            Assignee: xubo245
>            Priority: Major
>             Fix For: 1.5.0
>
>
> CarbonSchemaReader don't support Array<string>
> When we read schema from index file and the data include array<string> data type
> run org.apache.carbondata.examples.sdk.CarbonReaderExample :
> {code:java}
>     Schema schema = CarbonSchemaReader
>                 .readSchemaInIndexFile(dataFiles[0].getAbsolutePath())
>                 .asOriginOrder();
>             // Transform the schema
>             String[] strings = new String[schema.getFields().length];
>             for (int i = 0; i < schema.getFields().length; i++) {
>                 strings[i] = (schema.getFields())[i].getFieldName();
>                 System.out.println(strings[i] + "\t" + schema.getFields()[i].getSchemaOrdinal());
>             }
> {code}
> and throw some exception:
> {code:java}
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
> arrayfield.val0 -1
> stringfield 0
> shortfield 1
> intfield 2
> longfield 3
> doublefield 4
> boolfield 5
> datefield 6
> timefield 7
> decimalfield 8
> varcharfield 9
> arrayfield 10
> Complex child columns projection NOT supported through CarbonReader
> java.lang.UnsupportedOperationException: Complex child columns projection NOT supported through CarbonReader
> at org.apache.carbondata.sdk.file.CarbonReaderBuilder.build(CarbonReaderBuilder.java:155)
> at org.apache.carbondata.examples.sdk.CarbonReaderExample.main(CarbonReaderExample.java:110)
> {code}
> It print arrayfield.val0 -1, child schema

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