wangyinsheng commented on code in PR #13023:
URL: https://github.com/apache/hudi/pull/13023#discussion_r2015430063
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hudi-spark-datasource/hudi-spark3-common/src/main/java/org/apache/spark/sql/execution/datasources/parquet/Spark3HoodieVectorizedParquetRecordReader.java:
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@@ -161,8 +163,10 @@ public Object getCurrentValue() {
private int batchIdxFromSuper() {
try {
- Field batchIdxField =
VectorizedParquetRecordReader.class.getDeclaredField("batchIdx");
- batchIdxField.setAccessible(true);
+ if (batchIdxField == null) {
+ batchIdxField =
VectorizedParquetRecordReader.class.getDeclaredField("batchIdx");
+ batchIdxField.setAccessible(true);
Review Comment:
`batchIdx` works when `returnColumnarBatch==false`, it represents the index
within a batch. It is set to 0 when `nextBatch` is called, and incremented by 1
when `nextKeyValue` is called, and it is used as index（`batchIdx - 1`）to get
corresponding value when `currentKeyValue` is called.
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