rdblue commented on a change in pull request #2069: URL: https://github.com/apache/iceberg/pull/2069#discussion_r559044908
########## File path: api/src/test/java/org/apache/iceberg/expressions/TestMetricsEvaluatorsNaNHandling.java ########## @@ -0,0 +1,405 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.iceberg.expressions; + +import java.nio.ByteBuffer; +import java.util.Set; +import java.util.function.BiFunction; +import org.apache.iceberg.DataFile; +import org.apache.iceberg.Schema; +import org.apache.iceberg.TestHelpers; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableSet; +import org.apache.iceberg.types.Types; +import org.junit.Assert; +import org.junit.Test; + +import static org.apache.iceberg.types.Conversions.toByteBuffer; +import static org.apache.iceberg.types.Types.NestedField.optional; +import static org.apache.iceberg.types.Types.NestedField.required; + +/** + * This test class ensures that metrics evaluators could handle NaN as upper/lower bounds correctly. + */ +public class TestMetricsEvaluatorsNaNHandling { + private static final Schema SCHEMA = new Schema( + required(1, "all_nan", Types.DoubleType.get()), + required(2, "max_nan", Types.DoubleType.get()), + optional(3, "min_max_nan", Types.FloatType.get()), + required(4, "all_nan_null_bounds", Types.DoubleType.get()), + optional(5, "some_nan_correct_bounds", Types.FloatType.get()) + ); + + private static final DataFile FILE = new TestHelpers.TestDataFile("file.avro", TestHelpers.Row.of(), 50, + // any value counts, including nulls + ImmutableMap.<Integer, Long>builder() + .put(1, 10L) + .put(2, 10L) + .put(3, 10L) + .put(4, 10L) + .put(5, 10L) + .build(), + // null value counts + ImmutableMap.<Integer, Long>builder() + .put(1, 0L) + .put(2, 0L) + .put(3, 0L) + .put(4, 0L) + .put(5, 0L) + .build(), + // nan value counts + ImmutableMap.<Integer, Long>builder() + .put(1, 10L) + .put(4, 10L) + .put(5, 5L) + .build(), + // lower bounds + ImmutableMap.<Integer, ByteBuffer>builder() + .put(1, toByteBuffer(Types.DoubleType.get(), Double.NaN)) + .put(2, toByteBuffer(Types.DoubleType.get(), 7D)) + .put(3, toByteBuffer(Types.FloatType.get(), Float.NaN)) + .put(5, toByteBuffer(Types.FloatType.get(), 7F)) + .build(), + // upper bounds + ImmutableMap.<Integer, ByteBuffer>builder() + .put(1, toByteBuffer(Types.DoubleType.get(), Double.NaN)) + .put(2, toByteBuffer(Types.DoubleType.get(), Double.NaN)) + .put(3, toByteBuffer(Types.FloatType.get(), Float.NaN)) + .put(5, toByteBuffer(Types.FloatType.get(), 22F)) + .build()); + + private static final Set<BiFunction<String, Number, Expression>> LESS_THAN_EXPRESSIONS = + ImmutableSet.of(Expressions::lessThan, Expressions::lessThanOrEqual); + + private static final Set<BiFunction<String, Number, Expression>> GREATER_THAN_EXPRESSIONS = + ImmutableSet.of(Expressions::greaterThan, Expressions::greaterThanOrEqual); + + @Test + public void testInclusiveMetricsEvaluatorLessThanAndLessThanOrEqual() { + for (BiFunction<String, Number, Expression> func : LESS_THAN_EXPRESSIONS) { + boolean shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("all_nan", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("max_nan", 1D)).eval(FILE); + Assert.assertFalse("Should not match: 1 is smaller than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("max_nan", 10D)).eval(FILE); + Assert.assertTrue("Should match: 10 is larger than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("min_max_nan", 1F)).eval(FILE); + Assert.assertTrue("Should match: no visibility", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("all_nan_null_bounds", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("some_nan_correct_bounds", 1F)).eval(FILE); + Assert.assertFalse("Should not match: 1 is smaller than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("some_nan_correct_bounds", 10F)).eval(FILE); + Assert.assertTrue("Should match: 10 larger than lower bound", shouldRead); + } + } + + @Test + public void testInclusiveMetricsEvaluatorGreaterThanAndGreaterThanOrEqual() { + for (BiFunction<String, Number, Expression> func : GREATER_THAN_EXPRESSIONS) { + boolean shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("all_nan", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("max_nan", 1D)).eval(FILE); + Assert.assertTrue("Should match: upper bound is larger than 1", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("max_nan", 10D)).eval(FILE); + Assert.assertTrue("Should match: upper bound is larger than 10", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("min_max_nan", 1F)).eval(FILE); + Assert.assertTrue("Should match: no visibility", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("all_nan_null_bounds", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("some_nan_correct_bounds", 1F)).eval(FILE); + Assert.assertTrue("Should match: 1 is smaller than upper bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("some_nan_correct_bounds", 10F)).eval(FILE); + Assert.assertTrue("Should match: 10 is smaller than upper bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, func.apply("some_nan_correct_bounds", 30)).eval(FILE); + Assert.assertFalse("Should not match: 30 is greater than upper bound", shouldRead); + } + } + + @Test + public void testInclusiveMetricsEvaluatorEquals() { + boolean shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.equal("all_nan", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, Expressions.equal("max_nan", 1D)).eval(FILE); + Assert.assertFalse("Should not match: 1 is smaller than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, Expressions.equal("max_nan", 10D)).eval(FILE); + Assert.assertTrue("Should match: 10 is within bounds", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator(SCHEMA, Expressions.equal("min_max_nan", 1F)).eval(FILE); + Assert.assertTrue("Should match: no visibility", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.equal("all_nan_null_bounds", 1D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.equal("some_nan_correct_bounds", 1F)).eval(FILE); + Assert.assertFalse("Should not match: 1 is smaller than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.equal("some_nan_correct_bounds", 10F)).eval(FILE); + Assert.assertTrue("Should match: 10 is within bounds", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.equal("some_nan_correct_bounds", 30)).eval(FILE); + Assert.assertFalse("Should not match: 30 is greater than upper bound", shouldRead); + } + + @Test + public void testInclusiveMetricsEvaluatorNotEquals() { + boolean shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("all_nan", 1D)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("max_nan", 1D)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("max_nan", 10D)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("min_max_nan", 1F)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("all_nan_null_bounds", 1D)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("some_nan_correct_bounds", 1F)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("some_nan_correct_bounds", 10F)).eval(FILE); + shouldRead = shouldRead & new InclusiveMetricsEvaluator( + SCHEMA, Expressions.notEqual("some_nan_correct_bounds", 30)).eval(FILE); + Assert.assertTrue("Should match: no visibility", shouldRead); + } + + @Test + public void testInclusiveMetricsEvaluatorIn() { + boolean shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("all_nan", 1D, 10D, 30D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("max_nan", 1D, 10D, 30D)).eval(FILE); + Assert.assertTrue("Should match: 10 and 30 are greater than lower bound", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("min_max_nan", 1F, 10F, 30F)).eval(FILE); + Assert.assertTrue("Should match: no visibility", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("all_nan_null_bounds", 1D, 10D, 30D)).eval(FILE); + Assert.assertFalse("Should not match: all nan column doesn't contain number", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("some_nan_correct_bounds", 1F, 10F, 30F)).eval(FILE); + Assert.assertTrue("Should match: 10 within bounds", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("some_nan_correct_bounds", 1F)).eval(FILE); + Assert.assertFalse("Should not match: 1 not within bounds", shouldRead); + + shouldRead = new InclusiveMetricsEvaluator( + SCHEMA, Expressions.in("some_nan_correct_bounds", 30F)).eval(FILE); + Assert.assertFalse("Should not match: 30 not within bounds", shouldRead); Review comment: Nit: 1F and 30F could be combined to one case, `Expressions.in("some_nan_correct_bounds", 1F, 30F)`. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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