yabola commented on code in PR #1023:
URL: https://github.com/apache/parquet-mr/pull/1023#discussion_r1096650696
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parquet-hadoop/src/main/java/org/apache/parquet/filter2/compat/RowGroupFilter.java:
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@@ -98,16 +99,19 @@ public List<BlockMetaData>
visit(FilterCompat.FilterPredicateCompat filterPredic
for (BlockMetaData block : blocks) {
boolean drop = false;
+ // Whether one filter can exactly determine the existence/nonexistence
of the value.
+ // If true then we can skip the remaining filters to save time and space.
+ AtomicBoolean canExactlyDetermine = new AtomicBoolean(false);
Review Comment:
It used to be for the convenience of fetching the returned results. But I
will change my codes in another implemention later
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