LuciferYang commented on a change in pull request #30484:
URL: https://github.com/apache/spark/pull/30484#discussion_r548367035
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File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
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@@ -93,48 +93,17 @@ public void initialize(InputSplit inputSplit,
TaskAttemptContext taskAttemptCont
throws IOException, InterruptedException {
Configuration configuration = taskAttemptContext.getConfiguration();
ParquetInputSplit split = (ParquetInputSplit)inputSplit;
+ Preconditions.checkState(split.getRowGroupOffsets() == null,
Review comment:
For the current spark code, I think `split.getRowGroupOffsets()` should
always be null because after SPARK-13883 and SPARK-13989 `ParquetInputSplit`
is created manually in `ParquetRelation(ParquetFileFormat) ` and set
`rowGroupOffsets` to null explicitly
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