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[bugfix]Fix a mismatch between the type of jdbc query result and the …
…datatype (apache#514) The value type obtained by rs.getObject(index + 1) is inconsistent with the field type obtained by flink Context, resulting in a conversion failure in encapsulating flink RowData. For example, the java type corresponding to TINYINT is Java.lang. Byte, while the java type obtained by rs.getObject(index + 1) is Java.lang. Integer, which has a type conversion problem. SMALLINT had the same problem.
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...k-doris-connector/src/test/java/org/apache/doris/flink/lookup/DorisLookupTableITCase.java
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| // 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. | ||
|
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| package org.apache.doris.flink.lookup; | ||
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| import org.apache.flink.streaming.api.datastream.DataStreamSource; | ||
| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; | ||
| import org.apache.flink.table.api.DataTypes; | ||
| import org.apache.flink.table.api.Schema; | ||
| import org.apache.flink.table.api.Table; | ||
| import org.apache.flink.table.api.TableResult; | ||
| import org.apache.flink.table.api.bridge.java.StreamTableEnvironment; | ||
| import org.apache.flink.types.Row; | ||
| import org.apache.flink.util.CloseableIterator; | ||
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|
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| import org.apache.doris.flink.container.AbstractITCaseService; | ||
| import org.apache.doris.flink.container.ContainerUtils; | ||
| import org.apache.doris.flink.table.DorisConfigOptions; | ||
| import org.junit.Test; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
|
|
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| public class DorisLookupTableITCase extends AbstractITCaseService { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(DorisLookupTableITCase.class); | ||
| private static final String DATABASE = "test_lookup"; | ||
| private static final String TABLE_READ_TBL = "tbl_read_tbl"; | ||
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|
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| @Test | ||
| public void testLookupTable() throws Exception { | ||
| initializeTable(); | ||
| final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); | ||
| env.setParallelism(DEFAULT_PARALLELISM); | ||
| DataStreamSource<Integer> sourceStream = env.fromElements(1, 2, 3, 4); | ||
| final StreamTableEnvironment tEnv = StreamTableEnvironment.create(env); | ||
| Schema schema = | ||
| Schema.newBuilder() | ||
| .column("f0", DataTypes.INT()) | ||
| .columnByExpression("proctime", "PROCTIME()") | ||
| .build(); | ||
| Table table = tEnv.fromDataStream(sourceStream, schema); | ||
| tEnv.createTemporaryView("source", table); | ||
|
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||
| String lookupDDL = | ||
| String.format( | ||
| "CREATE TABLE `doris_lookup`(" | ||
| + " `id` INTEGER," | ||
| + " `tinyintColumn` TINYINT," | ||
| + " `smallintColumn` SMALLINT," | ||
| + " `bigintColumn` BIGINT," | ||
| + " PRIMARY KEY (`id`) NOT ENFORCED" | ||
| + ") WITH (" | ||
| + "'connector' = '" | ||
| + DorisConfigOptions.IDENTIFIER | ||
| + "'," | ||
| + "'fenodes' = '%s'," | ||
| + "'jdbc-url' = '%s'," | ||
| + "'table.identifier' = '%s'," | ||
| + "'username' = '%s'," | ||
| + "'password' = '%s'," | ||
| + "'lookup.cache.max-rows' = '100'" | ||
| + ")", | ||
| getFenodes(), | ||
| getDorisQueryUrl(), | ||
| DATABASE + "." + TABLE_READ_TBL, | ||
| getDorisUsername(), | ||
| getDorisPassword()); | ||
| tEnv.executeSql(lookupDDL); | ||
| TableResult tableResult = | ||
| tEnv.executeSql( | ||
| "select source.f0," | ||
| + "tinyintColumn," | ||
| + "smallintColumn," | ||
| + "bigintColumn" | ||
| + " from `source`" | ||
| + " inner join `doris_lookup` FOR SYSTEM_TIME AS OF source.proctime on source.f0 = doris_lookup.id"); | ||
|
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| List<String> actual = new ArrayList<>(); | ||
| try (CloseableIterator<Row> iterator = tableResult.collect()) { | ||
| while (iterator.hasNext()) { | ||
| actual.add(iterator.next().toString()); | ||
| } | ||
| } | ||
|
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||
| String[] expected = | ||
| new String[] { | ||
| "+I[1, 97, 27479, 8670353564751764000]", | ||
| "+I[2, 79, 17119, -4381380624467725000]", | ||
| "+I[3, -106, -14878, 1466614815449373200]" | ||
| }; | ||
| assertEqualsInAnyOrder(Arrays.asList(expected), Arrays.asList(actual.toArray())); | ||
| } | ||
|
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| private void initializeTable() { | ||
| ContainerUtils.executeSQLStatement( | ||
| getDorisQueryConnection(), | ||
| LOG, | ||
| String.format("CREATE DATABASE IF NOT EXISTS %s", DATABASE), | ||
| String.format( | ||
| "DROP TABLE IF EXISTS %s.%s", | ||
| DATABASE, DorisLookupTableITCase.TABLE_READ_TBL), | ||
| String.format( | ||
| "CREATE TABLE %s.%s ( \n" | ||
| + "`id` int(11),\n" | ||
| + "`tinyintColumn` tinyint(4),\n" | ||
| + "`smallintColumn` smallint(6),\n" | ||
| + "`bigintColumn` bigint(20),\n" | ||
| + ") DISTRIBUTED BY HASH(`id`) BUCKETS 10\n" | ||
| + "PROPERTIES (\n" | ||
| + "\"replication_num\" = \"1\"\n" | ||
| + ")\n", | ||
| DATABASE, DorisLookupTableITCase.TABLE_READ_TBL), | ||
| String.format( | ||
| "insert into %s.%s values (1,97,27479,8670353564751764000)", | ||
| DATABASE, DorisLookupTableITCase.TABLE_READ_TBL), | ||
| String.format( | ||
| "insert into %s.%s values (2,79,17119,-4381380624467725000)", | ||
| DATABASE, DorisLookupTableITCase.TABLE_READ_TBL), | ||
| String.format( | ||
| "insert into %s.%s values (3,-106,-14878,1466614815449373200)", | ||
| DATABASE, DorisLookupTableITCase.TABLE_READ_TBL)); | ||
| } | ||
| } |