hzfanxinxin opened a new issue #1117:
URL: https://github.com/apache/iceberg/issues/1117
```
@Override
public ParquetValueReader<?>
primitive(org.apache.iceberg.types.Type.PrimitiveType expected,
PrimitiveType primitive) {
ColumnDescriptor desc = type.getColumnDescription(currentPath());
if (primitive.getOriginalType() != null) {
switch (primitive.getOriginalType()) {
case ENUM:
case JSON:
case UTF8:
return new StringReader(desc);
case INT_8:
case INT_16:
case INT_32:
if (expected.typeId() == TypeID.LONG) {
return new IntAsLongReader(desc);
} else {
return new UnboxedReader<>(desc);
}
case INT_64:
return new UnboxedReader<>(desc);
case DATE:
return new DateReader(desc);
case TIMESTAMP_MICROS:
TimestampType tsMicrosType = (TimestampType) expected;
if (tsMicrosType.shouldAdjustToUTC()) {
return new TimestamptzReader(desc);
} else {
return new TimestampReader(desc);
}
case TIMESTAMP_MILLIS:
TimestampType tsMillisType = (TimestampType) expected;
if (tsMillisType.shouldAdjustToUTC()) {
return new TimestamptzMillisReader(desc);
} else {
return new TimestampMillisReader(desc);
}
...
```
if parameter `expected` is null, the function will throw
java.lang.NullPointerException.
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