[GitHub] arina-ielchiieva commented on a change in pull request #1387: DRILL-6603: Set num_nulls for parquet statistics to -1 when actual number is not defined.

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arina-ielchiieva commented on a change in pull request #1387: DRILL-6603: Set num_nulls for parquet statistics to -1 when actual number is not defined.
URL: https://github.com/apache/drill/pull/1387#discussion_r203662824
 
 

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 File path: exec/java-exec/src/main/java/org/apache/drill/exec/expr/stat/ParquetPredicatesHelper.java
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 @@ -48,13 +48,19 @@ static boolean isAllNulls(Statistics stat, long rowCount) {
   }
 
   /**
-   * Checks that column chunk's statistics does not have nulls
+   * Checks that column chunk's statistics does not have nulls.
+   *
+   * <ul>
+   * <li>If number of nulls is more then 0, it means column has nulls.</li>
 
 Review comment:
   Agree, removed comment.

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