in src/main/java/com/aliyun/odps/kafka/connect/converter/CsvRecordConverter.java [61:74]
public CsvRecordConverter(TableSchema schema, RecordConverterBuilder.Mode mode) {
this.schema = schema;
this.mode = mode;
// Init userColIndex
for (int i = 0; i < schema.getColumns().size(); i++) {
Column c = schema.getColumn(i);
if (!TOPIC.equalsIgnoreCase(c.getName())
&& !PARTITION.equalsIgnoreCase(c.getName())
&& !OFFSET.equalsIgnoreCase(c.getName())) {
userColIndex.add(i);
}
}
}