xubo245 created CARBONDATA-2982:
-----------------------------------
Summary: 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
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}
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