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ASF GitHub Bot commented on DRILL-5796: --------------------------------------- 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_r194637841 ########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/expr/stat/ParquetBooleanPredicates.java ########## @@ -61,16 +76,30 @@ public OrPredicate(String name, List<LogicalExpression> args, ExpressionPosition super(name, args, pos); } + /** + * Evaluates a compound "OR" filter on the statistics of a RowGroup (the filter reads "filterA or filterB"). + * Return value :<ul> + * <li>NONE : only if all filters return NONE + * <li>ALL : if one filter at least returns ALL + * <li>INAPPLICABLE : all other cases + * </ul> + */ @Override - public boolean canDrop(RangeExprEvaluator evaluator) { + public ROWS_MATCH matches(RangeExprEvaluator evaluator) { + ROWS_MATCH childMatch, lastMatch = ROWS_MATCH.NONE; for (LogicalExpression child : this) { - // "long" : as long as one branch is NOT ok to drop, we can NOT drop it. - if (! ((ParquetFilterPredicate) child).canDrop(evaluator)) { - return false; + childMatch = ((ParquetFilterPredicate) child).matches(evaluator); Review comment: Done. Even if it was not there before... ---------------------------------------------------------------- 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 > Filter pruning for multi rowgroup parquet file > ---------------------------------------------- > > Key: DRILL-5796 > URL: https://issues.apache.org/jira/browse/DRILL-5796 > Project: Apache Drill > Issue Type: Improvement > Components: Storage - Parquet > Reporter: Damien Profeta > Assignee: Jean-Blas IMBERT > Priority: Major > Fix For: 1.14.0 > > > Today, filter pruning use the file name as the partitioning key. This means > you can remove a partition only if the whole file is for the same partition. > With parquet, you can prune the filter if the rowgroup make a partition of > your dataset as the unit of work if the rowgroup not the file. -- This message was sent by Atlassian JIRA (v7.6.3#76005)