prakharjain09 commented on a change in pull request #945:
URL: https://github.com/apache/parquet-mr/pull/945#discussion_r807495498
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File path:
parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java
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@@ -1400,34 +1400,67 @@ public ParquetMetadata readParquetMetadata(final
InputStream from, MetadataFilte
return readParquetMetadata(from, filter, null, false, 0);
}
+ private Map<RowGroup, Long> generateRowGroupOffsets(FileMetaData metaData) {
+ Map<RowGroup, Long> rowGroupOrdinalToRowIdx = new HashMap<>();
+ List<RowGroup> rowGroups = metaData.getRow_groups();
+ if (rowGroups != null) {
+ long rowIdxSum = 0;
+ for (int i = 0; i < rowGroups.size(); i++) {
+ rowGroupOrdinalToRowIdx.put(rowGroups.get(i), rowIdxSum);
+ rowIdxSum += rowGroups.get(i).getNum_rows();
+ }
+ }
+ return rowGroupOrdinalToRowIdx;
+ }
+
+ /**
+ * A container for [[FileMetaData]] and [[RowGroup]] to ROW_INDEX offset map.
+ */
+ private class FileMetaDataAndRowGroupOffsetInfo {
+ FileMetaData fileMetadata;
Review comment:
done.
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