hililiwei commented on code in PR #6222: URL: https://github.com/apache/iceberg/pull/6222#discussion_r1039570783
########## flink/v1.16/flink/src/test/java/org/apache/iceberg/flink/source/TestFlinkMetaDataTable.java: ########## @@ -0,0 +1,713 @@ +/* + * 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.flink.source; + +import java.io.IOException; +import java.time.Instant; +import java.util.Comparator; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; +import java.util.stream.Stream; +import org.apache.avro.generic.GenericData; +import org.apache.commons.collections.ListUtils; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.configuration.CoreOptions; +import org.apache.flink.table.api.TableEnvironment; +import org.apache.flink.types.Row; +import org.apache.iceberg.DeleteFile; +import org.apache.iceberg.FileContent; +import org.apache.iceberg.FileFormat; +import org.apache.iceberg.Files; +import org.apache.iceberg.ManifestFile; +import org.apache.iceberg.MetadataTableType; +import org.apache.iceberg.MetadataTableUtils; +import org.apache.iceberg.Schema; +import org.apache.iceberg.Snapshot; +import org.apache.iceberg.Table; +import org.apache.iceberg.avro.Avro; +import org.apache.iceberg.catalog.Namespace; +import org.apache.iceberg.catalog.TableIdentifier; +import org.apache.iceberg.data.FileHelpers; +import org.apache.iceberg.data.GenericRecord; +import org.apache.iceberg.data.Record; +import org.apache.iceberg.expressions.Expressions; +import org.apache.iceberg.flink.FlinkCatalogTestBase; +import org.apache.iceberg.flink.FlinkConfigOptions; +import org.apache.iceberg.flink.TestHelpers; +import org.apache.iceberg.io.CloseableIterable; +import org.apache.iceberg.io.InputFile; +import org.apache.iceberg.relocated.com.google.common.collect.Lists; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.util.SnapshotUtil; +import org.junit.After; +import org.junit.Assert; +import org.junit.Before; +import org.junit.Test; +import org.junit.rules.TemporaryFolder; + +public class TestFlinkMetaDataTable extends FlinkCatalogTestBase { + + private static final String TABLE_NAME = "test_table"; + private final FileFormat format = FileFormat.AVRO; + private static TemporaryFolder temp = new TemporaryFolder(); + + public TestFlinkMetaDataTable(String catalogName, Namespace baseNamespace) { + super(catalogName, baseNamespace); + } + + @Override + protected TableEnvironment getTableEnv() { + Configuration configuration = super.getTableEnv().getConfig().getConfiguration(); + configuration.set(CoreOptions.DEFAULT_PARALLELISM, 1); + configuration.set(FlinkConfigOptions.TABLE_EXEC_ICEBERG_USE_FLIP27_SOURCE, true); + return super.getTableEnv(); + } + + @Before + public void before() { + super.before(); + sql("CREATE DATABASE %s", flinkDatabase); + sql("USE CATALOG %s", catalogName); + sql("USE %s", DATABASE); + } + + @Override + @After + public void clean() { + sql("DROP TABLE IF EXISTS %s.%s", flinkDatabase, TABLE_NAME); + sql("DROP DATABASE IF EXISTS %s", flinkDatabase); + super.clean(); + } + + @Test + public void testSnapshots() { + sql( + "CREATE TABLE %s (id INT, data VARCHAR,d DOUBLE) WITH ('format-version'='2', 'write.format.default'='%s')", + TABLE_NAME, format.name()); + sql( + "INSERT INTO %s VALUES (1,'iceberg',10),(2,'b',20),(3,CAST(NULL AS VARCHAR),30)", + TABLE_NAME); + String sql = String.format("SELECT * FROM %s$snapshots ", TABLE_NAME); + List<Row> result = sql(sql); + + Table table = validationCatalog.loadTable(TableIdentifier.of(icebergNamespace, TABLE_NAME)); + Iterator<Snapshot> snapshots = table.snapshots().iterator(); + for (Row row : result) { + Snapshot next = snapshots.next(); + Assert.assertEquals( + "Should have expected timestamp", + ((Instant) row.getField(0)).toEpochMilli(), + next.timestampMillis()); + Assert.assertEquals("Should have expected snapshot id", row.getField(1), next.snapshotId()); + Assert.assertEquals("Should have expected parent id", row.getField(2), next.parentId()); + Assert.assertEquals("Should have expected operation", row.getField(3), next.operation()); + Assert.assertEquals( + "Should have expected manifest list location", + row.getField(4), + next.manifestListLocation()); + Assert.assertEquals("Should have expected summary", row.getField(5), next.summary()); + } + } + + @Test + public void testHistory() { + sql( + "CREATE TABLE %s (id INT, data VARCHAR,d DOUBLE) WITH ('format-version'='2', 'write.format.default'='%s')", + TABLE_NAME, format.name()); + sql( + "INSERT INTO %s VALUES (1,'iceberg',10),(2,'b',20),(3,CAST(NULL AS VARCHAR),30)", + TABLE_NAME); + String sql = String.format("SELECT * FROM %s$history ", TABLE_NAME); + List<Row> result = sql(sql); + + Table table = validationCatalog.loadTable(TableIdentifier.of(icebergNamespace, TABLE_NAME)); + Iterator<Snapshot> snapshots = table.snapshots().iterator(); + for (Row row : result) { + Snapshot next = snapshots.next(); + Assert.assertEquals( + "Should have expected made_current_at", + ((Instant) row.getField(0)).toEpochMilli(), + next.timestampMillis()); + Assert.assertEquals("Should have expected snapshot id", row.getField(1), next.snapshotId()); + Assert.assertEquals("Should have expected parent id", row.getField(2), next.parentId()); + Assert.assertEquals( Review Comment: Multiple snapshots have been added. -- This is an automated message from the Apache Git Service. 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