szehon-ho commented on code in PR #6716:
URL: https://github.com/apache/iceberg/pull/6716#discussion_r1094106234
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parquet/src/main/java/org/apache/iceberg/parquet/ParquetMetricsRowGroupFilter.java:
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@@ -50,15 +51,22 @@ public class ParquetMetricsRowGroupFilter {
private final Schema schema;
private final Expression expr;
+ private final Set<Integer> constantFieldIds;
public ParquetMetricsRowGroupFilter(Schema schema, Expression unbound) {
- this(schema, unbound, true);
+ this(schema, unbound, true, ImmutableSet.of());
Review Comment:
Without the extra check, any column whose stats are null go to
ROWS_CANNOT_MATCH. Thus any deletes table constant column filter at all will
lead to 0 results.
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