lidavidm commented on a change in pull request #10060:
URL: https://github.com/apache/arrow/pull/10060#discussion_r626788257
##########
File path: cpp/src/arrow/dataset/file_parquet_test.cc
##########
@@ -245,13 +245,41 @@ TEST_F(TestParquetFileFormat, CountRowsPredicatePushdown)
{
ASSERT_FINISHES_OK_AND_EQ(util::make_optional<int64_t>(expected),
fragment->CountRows(predicate, options));
- // N.B. SimplifyWithGuarantee can't handle simplifying (i64 == 1) against
(i64 <= 1 &
- // i64 >= 1) right now, but this works
predicate = and_(less_equal(field_ref("i64"), literal(i)),
greater_equal(field_ref("i64"), literal(i)));
ASSERT_OK_AND_ASSIGN(predicate, predicate.Bind(*reader->schema()));
ASSERT_FINISHES_OK_AND_EQ(util::make_optional<int64_t>(i),
fragment->CountRows(predicate, options));
+
+ predicate = equal(field_ref("i64"), literal(i));
+ ASSERT_OK_AND_ASSIGN(predicate, predicate.Bind(*reader->schema()));
+ ASSERT_FINISHES_OK_AND_EQ(util::make_optional<int64_t>(i),
+ fragment->CountRows(predicate, options));
+ }
+
+ // Ensure nulls are properly handled
+ {
+ auto dataset_schema = schema({field("i64", int64())});
+ auto null_batch = RecordBatchFromJSON(dataset_schema, R"([
+[null],
+[null],
+[null]
+])");
+ auto batch = RecordBatchFromJSON(dataset_schema, R"([
+[1],
+[2]
+])");
+ ASSERT_OK_AND_ASSIGN(auto reader,
+ RecordBatchReader::Make({null_batch, batch},
dataset_schema));
+ auto source = GetFileSource(reader.get());
+ auto fragment = MakeFragment(*source);
+ ASSERT_OK_AND_ASSIGN(
+ auto predicate,
+ greater_equal(field_ref("i64"), literal(1)).Bind(*dataset_schema));
+ ASSERT_FINISHES_OK_AND_EQ(util::make_optional<int64_t>(2),
+ fragment->CountRows(predicate, options));
+ // N.B. SimplifyWithGuarantee can't handle not(is_null) so trying to count
with
+ // is_null doesn't work
Review comment:
I filed ARROW-12659.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
