cloud-fan commented on code in PR #37228:
URL: https://github.com/apache/spark/pull/37228#discussion_r945887348
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sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedParquetRecordReader.java:
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@@ -324,6 +331,10 @@ public boolean nextBatch() throws IOException {
}
cv.assemble();
}
+ // If needed, compute row indexes within a file.
+ if (rowIndexGenerator != null) {
+ rowIndexGenerator.populateRowIndex(columnVectors, num);
Review Comment:
Sorry I'm not very familiar with parquet read codebase, does this happen
after row group skipping or not?
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