cloud-fan commented on a change in pull request #32753:
URL: https://github.com/apache/spark/pull/32753#discussion_r657716760
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File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/ParquetReadState.java
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@@ -33,31 +51,102 @@
/** The remaining number of values to read in the current batch */
int valuesToReadInBatch;
- ParquetReadState(int maxDefinitionLevel) {
+ ParquetReadState(int maxDefinitionLevel, PrimitiveIterator.OfLong
rowIndexes) {
this.maxDefinitionLevel = maxDefinitionLevel;
+ this.rowRanges = rowIndexes == null ? null : constructRanges(rowIndexes);
+ nextRange();
+ }
+
+ private Iterator<RowRange> constructRanges(PrimitiveIterator.OfLong
rowIndexes) {
Review comment:
Can we add some comments to explain how to generate row ranges?
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