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Support basic jdbc external table stats collection.
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174 changes: 174 additions & 0 deletions
174
fe/fe-core/src/main/java/org/apache/doris/statistics/JdbcAnalysisTask.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.statistics; | ||
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| import org.apache.doris.catalog.Env; | ||
| import org.apache.doris.catalog.external.JdbcExternalTable; | ||
| import org.apache.doris.common.FeConstants; | ||
| import org.apache.doris.qe.AutoCloseConnectContext; | ||
| import org.apache.doris.qe.QueryState; | ||
| import org.apache.doris.qe.StmtExecutor; | ||
| import org.apache.doris.statistics.util.StatisticsUtil; | ||
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| import org.apache.commons.text.StringSubstitutor; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| public class JdbcAnalysisTask extends BaseAnalysisTask { | ||
| private static final Logger LOG = LogManager.getLogger(JdbcAnalysisTask.class); | ||
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| private static final String ANALYZE_SQL_TABLE_TEMPLATE = "INSERT INTO " | ||
| + "${internalDB}.${columnStatTbl}" | ||
| + " SELECT " | ||
| + "CONCAT(${tblId}, '-', ${idxId}, '-', '${colId}') AS id, " | ||
| + "${catalogId} AS catalog_id, " | ||
| + "${dbId} AS db_id, " | ||
| + "${tblId} AS tbl_id, " | ||
| + "${idxId} AS idx_id, " | ||
| + "'${colId}' AS col_id, " | ||
| + "NULL AS part_id, " | ||
| + "COUNT(1) AS row_count, " | ||
| + "NDV(`${colName}`) AS ndv, " | ||
| + "SUM(CASE WHEN `${colName}` IS NULL THEN 1 ELSE 0 END) AS null_count, " | ||
| + "MIN(`${colName}`) AS min, " | ||
| + "MAX(`${colName}`) AS max, " | ||
| + "${dataSizeFunction} AS data_size, " | ||
| + "NOW() " | ||
| + "FROM `${catalogName}`.`${dbName}`.`${tblName}`"; | ||
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| private static final String ANALYZE_TABLE_COUNT_TEMPLATE = "SELECT COUNT(1) as rowCount " | ||
| + "FROM `${catalogName}`.`${dbName}`.`${tblName}`"; | ||
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| private final boolean isTableLevelTask; | ||
| private JdbcExternalTable table; | ||
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| public JdbcAnalysisTask(AnalysisInfo info) { | ||
| super(info); | ||
| isTableLevelTask = info.externalTableLevelTask; | ||
| table = (JdbcExternalTable) tbl; | ||
| } | ||
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| public void doExecute() throws Exception { | ||
| if (isTableLevelTask) { | ||
| getTableStats(); | ||
| } else { | ||
| getTableColumnStats(); | ||
| } | ||
| } | ||
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| /** | ||
| * Get table row count and store the result to metadata. | ||
| */ | ||
| private void getTableStats() throws Exception { | ||
| Map<String, String> params = buildTableStatsParams(null); | ||
| List<ResultRow> columnResult = | ||
| StatisticsUtil.execStatisticQuery(new StringSubstitutor(params).replace(ANALYZE_TABLE_COUNT_TEMPLATE)); | ||
| String rowCount = columnResult.get(0).get(0); | ||
| Env.getCurrentEnv().getAnalysisManager() | ||
| .updateTableStatsStatus(new TableStats(table.getId(), Long.parseLong(rowCount), info)); | ||
| } | ||
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| /** | ||
| * Get column statistics and insert the result to __internal_schema.column_statistics | ||
| */ | ||
| private void getTableColumnStats() throws Exception { | ||
| // An example sql for a column stats: | ||
| // INSERT INTO __internal_schema.column_statistics | ||
| // SELECT CONCAT(13055, '-', -1, '-', 'r_regionkey') AS id, | ||
| // 13002 AS catalog_id, | ||
| // 13038 AS db_id, | ||
| // 13055 AS tbl_id, | ||
| // -1 AS idx_id, | ||
| // 'r_regionkey' AS col_id, | ||
| // 'NULL' AS part_id, | ||
| // COUNT(1) AS row_count, | ||
| // NDV(`r_regionkey`) AS ndv, | ||
| // SUM(CASE WHEN `r_regionkey` IS NULL THEN 1 ELSE 0 END) AS null_count, | ||
| // MIN(`r_regionkey`) AS min, | ||
| // MAX(`r_regionkey`) AS max, | ||
| // 0 AS data_size, | ||
| // NOW() FROM `hive`.`tpch100`.`region` | ||
| StringBuilder sb = new StringBuilder(); | ||
| sb.append(ANALYZE_SQL_TABLE_TEMPLATE); | ||
| Map<String, String> params = buildTableStatsParams("NULL"); | ||
| params.put("internalDB", FeConstants.INTERNAL_DB_NAME); | ||
| params.put("columnStatTbl", StatisticConstants.STATISTIC_TBL_NAME); | ||
| params.put("colName", col.getName()); | ||
| params.put("colId", info.colName); | ||
| params.put("dataSizeFunction", getDataSizeFunction(col)); | ||
| StringSubstitutor stringSubstitutor = new StringSubstitutor(params); | ||
| String sql = stringSubstitutor.replace(sb.toString()); | ||
| executeInsertSql(sql); | ||
| } | ||
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| private void executeInsertSql(String sql) throws Exception { | ||
| long startTime = System.currentTimeMillis(); | ||
| try (AutoCloseConnectContext r = StatisticsUtil.buildConnectContext()) { | ||
| r.connectContext.getSessionVariable().disableNereidsPlannerOnce(); | ||
| this.stmtExecutor = new StmtExecutor(r.connectContext, sql); | ||
| r.connectContext.setExecutor(stmtExecutor); | ||
| this.stmtExecutor.execute(); | ||
| QueryState queryState = r.connectContext.getState(); | ||
| if (queryState.getStateType().equals(QueryState.MysqlStateType.ERR)) { | ||
| LOG.warn(String.format("Failed to analyze %s.%s.%s, sql: [%s], error: [%s]", | ||
| info.catalogName, info.dbName, info.colName, sql, queryState.getErrorMessage())); | ||
| throw new RuntimeException(queryState.getErrorMessage()); | ||
| } | ||
| LOG.debug(String.format("Analyze %s.%s.%s done. SQL: [%s]. Cost %d ms.", | ||
| info.catalogName, info.dbName, info.colName, sql, (System.currentTimeMillis() - startTime))); | ||
| } | ||
| } | ||
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| private Map<String, String> buildTableStatsParams(String partId) { | ||
| Map<String, String> commonParams = new HashMap<>(); | ||
| String id = StatisticsUtil.constructId(tbl.getId(), -1); | ||
| if (partId == null) { | ||
| commonParams.put("partId", "NULL"); | ||
| } else { | ||
| id = StatisticsUtil.constructId(id, partId); | ||
| commonParams.put("partId", "\'" + partId + "\'"); | ||
| } | ||
| commonParams.put("id", id); | ||
| commonParams.put("catalogId", String.valueOf(catalog.getId())); | ||
| commonParams.put("dbId", String.valueOf(db.getId())); | ||
| commonParams.put("tblId", String.valueOf(tbl.getId())); | ||
| commonParams.put("indexId", "-1"); | ||
| commonParams.put("idxId", "-1"); | ||
| commonParams.put("catalogName", catalog.getName()); | ||
| commonParams.put("dbName", db.getFullName()); | ||
| commonParams.put("tblName", tbl.getName()); | ||
| if (col != null) { | ||
| commonParams.put("type", col.getType().toString()); | ||
| } | ||
| commonParams.put("lastAnalyzeTimeInMs", String.valueOf(System.currentTimeMillis())); | ||
| return commonParams; | ||
| } | ||
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| @Override | ||
| protected void afterExecution() { | ||
| // Table level task doesn't need to sync any value to sync stats, it stores the value in metadata. | ||
| if (isTableLevelTask) { | ||
| return; | ||
| } | ||
| Env.getCurrentEnv().getStatisticsCache().syncLoadColStats(tbl.getId(), -1, col.getName()); | ||
| } | ||
| } |
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64 changes: 64 additions & 0 deletions
64
regression-test/suites/external_table_p0/jdbc/test_mysql_jdbc_statistics.groovy
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,64 @@ | ||
| // 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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| suite("test_mysql_jdbc_statistics", "p0,external,mysql,external_docker,external_docker_mysql") { | ||
| String enabled = context.config.otherConfigs.get("enableJdbcTest") | ||
| String externalEnvIp = context.config.otherConfigs.get("externalEnvIp") | ||
| String mysql_port = context.config.otherConfigs.get("mysql_57_port"); | ||
| String s3_endpoint = getS3Endpoint() | ||
| String bucket = getS3BucketName() | ||
| String driver_url = "https://${bucket}.${s3_endpoint}/regression/jdbc_driver/mysql-connector-java-8.0.25.jar" | ||
| if (enabled != null && enabled.equalsIgnoreCase("true")) { | ||
| String catalog_name = "test_mysql_jdbc_statistics"; | ||
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| sql """create catalog if not exists ${catalog_name} properties( | ||
| "type"="jdbc", | ||
| "user"="root", | ||
| "password"="123456", | ||
| "jdbc_url" = "jdbc:mysql://${externalEnvIp}:${mysql_port}/doris_test?useSSL=false&zeroDateTimeBehavior=convertToNull", | ||
| "driver_url" = "${driver_url}", | ||
| "driver_class" = "com.mysql.cj.jdbc.Driver" | ||
| );""" | ||
|
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| sql """use ${catalog_name}.doris_test""" | ||
| sql """analyze table ex_tb0 with sync""" | ||
| def result = sql """show column stats ex_tb0 (name)""" | ||
| assertTrue(result.size() == 1) | ||
| assertTrue(result[0][0] == "name") | ||
| assertTrue(result[0][1] == "5.0") | ||
| assertTrue(result[0][2] == "5.0") | ||
| assertTrue(result[0][3] == "0.0") | ||
| assertTrue(result[0][4] == "18.0") | ||
| assertTrue(result[0][5] == "3.0") | ||
| assertTrue(result[0][6] == "'abc'") | ||
| assertTrue(result[0][7] == "'abg'") | ||
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| result = sql """show column stats ex_tb0 (id)""" | ||
| assertTrue(result.size() == 1) | ||
| assertTrue(result[0][0] == "id") | ||
| assertTrue(result[0][1] == "5.0") | ||
| assertTrue(result[0][2] == "5.0") | ||
| assertTrue(result[0][3] == "0.0") | ||
| assertTrue(result[0][4] == "24.0") | ||
| assertTrue(result[0][5] == "4.0") | ||
| assertTrue(result[0][6] == "111") | ||
| assertTrue(result[0][7] == "115") | ||
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| sql """drop catalog ${catalog_name}""" | ||
| } | ||
| } | ||
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