arina-ielchiieva commented on a change in pull request #1552: DRILL-6865:
Query returns wrong result when filter pruning happens
URL: https://github.com/apache/drill/pull/1552#discussion_r235952813
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetPushDownFilter.java
##########
@@ -134,12 +132,29 @@ protected void doOnMatch(RelOptRuleCall call, FilterPrel
filter, ProjectPrel pro
// get a conjunctions of the filter condition. For each conjunction, if it
refers to ITEM or FLATTEN expression
// then we could not pushed down. Otherwise, it's qualified to be pushed
down.
- final List<RexNode> predList = RelOptUtil.conjunctions(condition);
+ final List<RexNode> predList =
RelOptUtil.conjunctions(RexUtil.toCnf(filter.getCluster().getRexBuilder(),
condition));
Review comment:
Why this change is needed?
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