jbimbert commented on a change in pull request #1298: DRILL-5796: Filter pruning for multi rowgroup parquet file URL: https://github.com/apache/drill/pull/1298#discussion_r199478733
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/expr/stat/ParquetComparisonPredicate.java ########## @@ -83,23 +84,26 @@ private ParquetComparisonPredicate( * where Column1 and Column2 are from same parquet table. */ @Override - public boolean canDrop(RangeExprEvaluator<C> evaluator) { + public RowsMatch matches(RangeExprEvaluator<C> evaluator) { Statistics<C> leftStat = left.accept(evaluator, null); - if (isNullOrEmpty(leftStat)) { - return false; + if (isNullOrEmpty(leftStat) || !leftStat.hasNonNullValue()) { Review comment: Done ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services