[GitHub] arina-ielchiieva commented on a change in pull request #1406: DRILL-6641: Fix columnValueCounts in ParquetGroupScanStatistics when ParquetGroupScan has RowGroupInfo without column statistics

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arina-ielchiieva commented on a change in pull request #1406: DRILL-6641: Fix columnValueCounts in ParquetGroupScanStatistics when ParquetGroupScan has RowGroupInfo without column statistics
URL: https://github.com/apache/drill/pull/1406#discussion_r205748264
 
 

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 File path: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetGroupScanStatistics.java
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 @@ -88,19 +88,21 @@ public void collect(List<RowGroupInfo> rowGroupInfos, ParquetTableMetadataBase p
       for (ColumnMetadata column : rowGroup.getColumns()) {
         SchemaPath schemaPath = SchemaPath.getCompoundPath(column.getName());
         Long previousCount = columnValueCounts.get(schemaPath);
+        Long newCount;
 
 Review comment:
   @vvysotskyi definitely case worth fixing! 
   Maybe we can optimize `if (previousCount != null)` to something like `prevoiusCount == null ? 0 : previousCount`? This would help to remove else part and duplicated logic.

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