leonardBang commented on a change in pull request #12290: URL: https://github.com/apache/flink/pull/12290#discussion_r430433310
########## File path: flink-connectors/flink-connector-jdbc/src/test/java/org/apache/flink/connector/jdbc/table/UnsignedTypeConversionITCase.java ########## @@ -0,0 +1,214 @@ +/* + * 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.flink.connector.jdbc.table; + +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.table.api.DataTypes; +import org.apache.flink.table.api.Table; +import org.apache.flink.table.api.bridge.java.StreamTableEnvironment; +import org.apache.flink.table.planner.runtime.utils.TableEnvUtil; +import org.apache.flink.types.Row; + +import ch.vorburger.mariadb4j.DBConfigurationBuilder; +import ch.vorburger.mariadb4j.junit.MariaDB4jRule; +import org.junit.After; +import org.junit.Before; +import org.junit.ClassRule; +import org.junit.Test; + +import java.math.BigDecimal; +import java.math.BigInteger; +import java.sql.Connection; +import java.sql.DriverManager; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import static org.apache.flink.table.api.Expressions.row; +import static org.junit.Assert.assertArrayEquals; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; + +/** + * Test unsigned type conversion between Flink and JDBC driver mysql, the test underlying use + * MariaDB to mock a DB which use mysql driver too. + */ +public class UnsignedTypeConversionITCase { + + private static final String DEFAULT_DB_NAME = "test"; + private static final String TABLE_NAME = "unsigned_test"; + private static final String[] DATA = new String[]{ + "127", + "255", + "32767", + "65535", + "2147483647", + "4294967295", + "9223372036854775807", + "18446744073709551615"}; + + private StreamTableEnvironment tEnv; + private String dbUrl; + private Connection connection; + + @ClassRule + public static MariaDB4jRule db4jRule = new MariaDB4jRule( + DBConfigurationBuilder.newBuilder().setPort(3306).build(), + DEFAULT_DB_NAME, + null); + + @Before + public void setUp() throws SQLException, ClassNotFoundException { + StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); + tEnv = StreamTableEnvironment.create(env); + //dbUrl: jdbc:mysql://localhost:3306/test + dbUrl = db4jRule.getURL(); + connection = DriverManager.getConnection(dbUrl); + // create mysql table + PreparedStatement ddlStatement = connection.prepareStatement("create table " + TABLE_NAME + " (" + + " tiny_c TINYINT," + + " tiny_un_c TINYINT UNSIGNED," + + " small_c SMALLINT," + + " small_un_c SMALLINT UNSIGNED," + + " int_c INTEGER ," + + " int_un_c INTEGER UNSIGNED," + + " big_c BIGINT," + + " big_un_c BIGINT UNSIGNED);"); + ddlStatement.execute(); + + // create flink table + String sourceDDL = "create table jdbc_table (" + + "tiny_c TINYINT," + + "tiny_un_c SMALLINT," + + "small_c SMALLINT," + + "small_un_c INT," + + "int_c INT," + + "int_un_c BIGINT," + + "big_c BIGINT," + + "big_un_c DECIMAL(20, 0)) with(" + + " 'connector' = 'jdbc'," + + " 'url' = '" + dbUrl + "'," + + " 'table-name' = '" + TABLE_NAME + "'" + + ")"; + tEnv.executeSql(sourceDDL); + } + + @Test + public void testReadUnsignedType() throws SQLException { + // insert data to db + String insertSql = String.format("insert into " + TABLE_NAME + + "(tiny_c, tiny_un_c, small_c, small_un_c, int_c, int_un_c, big_c, big_un_c) values (" + + "%s, %s, %s, %s, %s, %s, %s, %s)", DATA); + PreparedStatement insertStatement = connection.prepareStatement(insertSql); + insertStatement.execute(); + // read data from db + Iterator<Row> res = tEnv.executeSql("select tiny_c, tiny_un_c, small_c, small_un_c," + + " int_c, int_un_c, big_c, big_un_c from jdbc_table") + .collect(); + List<Row> actual = new ArrayList<>(); + while (res.hasNext()) { + actual.add(res.next()); + } + assertTrue(actual.size() == 1); + assertTrue(actual.get(0).getArity() == DATA.length); + String[] expected = new String[DATA.length]; + for (int i = 0; i < DATA.length; i++) { + expected[i] = actual.get(0).getField(i).toString(); + } + assertArrayEquals(DATA, expected); Review comment: maybe not, here only one Row and it contains multi column ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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