manishmalhotrawork commented on a change in pull request #365: test cases for
parquetMetrics with multiple rowgroup
URL: https://github.com/apache/incubator-iceberg/pull/365#discussion_r313506183
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File path: core/src/test/java/org/apache/iceberg/TestMetrics.java
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@@ -270,6 +289,97 @@ public void testMetricsForNullColumns() throws
IOException {
assertBounds(1, IntegerType.get(), null, null, metrics);
}
+ @Test
+ public void testMetricsForTopLevelWithMultipleRG() throws Exception {
+ Schema schema = getSimpleSchema();
+ int minimumRowGroupRecordCount = 100;
+ List<GenericData.Record> records = new ArrayList<>(201);
+
+ for (int i = 0; i < 201; i++) {
+ GenericData.Record newRecord = new
GenericData.Record(AvroSchemaUtil.convert(schema.asStruct()));
+ newRecord.put("booleanCol", i == 0 ? false : true);
+ newRecord.put("intCol", i + 1);
+ newRecord.put("longCol", i == 0 ? null : i + 1L);
+ newRecord.put("floatCol", i + 1.0F);
+ newRecord.put("doubleCol", i == 0 ? null : i + 1.0D);
+ newRecord.put("decimalCol", i == 0 ? null : new BigDecimal(i +
"").add(new BigDecimal("1.00")));
+ newRecord.put("stringCol", "AAA");
+ newRecord.put("dateCol", i + 1);
+ newRecord.put("timeCol", i + 1L);
+ newRecord.put("timestampCol", i + 1L);
+ newRecord.put("uuidCol", uuid);
+ newRecord.put("fixedCol", fixed);
+ newRecord.put("binaryCol", "S".getBytes());
+ records.add(newRecord);
+ }
+
+ // create parquet file with multiple row groups. by using smaller number
of bytes
+ File parquetFile = writeRecords(
+ schema,
+ ImmutableMap.of(PARQUET_ROW_GROUP_SIZE_BYTES,
Integer.toString(ROW_GROUP_SIZE)),
+ records.toArray(new GenericData.Record[] {}));
+
+ Assert.assertNotNull(parquetFile);
+ // rowgroup size should be > 1
+ Assert.assertEquals(3, splitCount(parquetFile));
+
+ Metrics metrics = getMetrics(localInput(parquetFile));
+ Assert.assertEquals(201L, (long) metrics.recordCount());
+ assertCounts(1, 201L, 0L, metrics);
+ assertBounds(1, Types.BooleanType.get(), false, true, metrics);
+ assertBounds(2, Types.IntegerType.get(), 1, 201, metrics);
+ assertCounts(3, 201L, 1L, metrics);
+ assertBounds(3, Types.LongType.get(), 2L, 201L, metrics);
+ assertCounts(4, 201L, 0L, metrics);
+ assertBounds(4, Types.FloatType.get(), 1.0F, 201.0F, metrics);
+ assertCounts(5, 201L, 1L, metrics);
+ assertBounds(5, Types.DoubleType.get(), 2.0D, 201.0D, metrics);
+ assertCounts(6, 201L, 1L, metrics);
+ assertBounds(6, Types.DecimalType.of(10, 2), new BigDecimal("2.00"),
+ new BigDecimal("201.00"), metrics);
+ }
+
+ @Test
+ public void testMetricsForNestedStructFieldsWithMultipleRG() throws
IOException {
+ int minimumRowGroupRecordCount = 101;
Review comment:
updated.
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