Github user jinfengni commented on a diff in the pull request:
https://github.com/apache/drill/pull/519#discussion_r70514381
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetGroupScan.java
---
@@ -607,7 +607,14 @@ public long getRowCount() {
fileSet = Sets.newHashSet(fileNames);
}
- if (fileNames.isEmpty()) {
+ List<String> finalFileNames;
+ if (fileSet != null) {
+ finalFileNames = Lists.newArrayList(fileSet);
--- End diff --
Can we use fileNames only? From Line 589 / 607, seems fileSet is assigned
from fileNames; seems they are same under two ELSE branches.
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