dongjoon-hyun commented on a change in pull request #32753:
URL: https://github.com/apache/spark/pull/32753#discussion_r659107932
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/ParquetReadState.java
##########
@@ -17,13 +17,31 @@
package org.apache.spark.sql.execution.datasources.parquet;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.PrimitiveIterator;
+
/**
* Helper class to store intermediate state while reading a Parquet column
chunk.
*/
final class ParquetReadState {
- /** Maximum definition level */
+ private static final RowRange MAX_ROW_RANGE = new RowRange(Long.MIN_VALUE,
Long.MAX_VALUE);
+ private static final RowRange MIN_ROW_RANGE = new RowRange(Long.MAX_VALUE,
Long.MIN_VALUE);
+
+ /** Iterator over all row ranges, only not-null if column index is present */
+ private final Iterator<RowRange> rowRanges;
Review comment:
Thank you for the illustration.
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