Github user vvysotskyi commented on a diff in the pull request:
https://github.com/apache/drill/pull/805#discussion_r112651025
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetGroupScan.java
---
@@ -508,7 +511,10 @@ public void populatePruningVector(ValueVector v, int
index, SchemaPath column, S
NullableVarBinaryVector varBinaryVector =
(NullableVarBinaryVector) v;
Object s = partitionValueMap.get(f).get(column);
byte[] bytes;
- if (s instanceof Binary) {
+ if (s == null) {
+ varBinaryVector.getMutator().setNull(index);
--- End diff --
We can apply this setNull() only for types that use BinaryStatistics [1]
for the reason described in my previous comment. So we apply setNull() to
VARBINARY, DECIMAL18, VARCHAR and INTERVAL types.
[1]
https://github.com/apache/parquet-mr/blob/e54ca615f213f5db6d34d9163c97eec98920d7a7/parquet-column/src/main/java/org/apache/parquet/column/statistics/BinaryStatistics.java#L25
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