Kikyou1997 commented on code in PR #13883: URL: https://github.com/apache/doris/pull/13883#discussion_r1011097672
########## fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticUtil.java: ########## @@ -0,0 +1,209 @@ +// 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.doris.statistics; + +import org.apache.doris.analysis.Analyzer; +import org.apache.doris.analysis.BoolLiteral; +import org.apache.doris.analysis.DateLiteral; +import org.apache.doris.analysis.DecimalLiteral; +import org.apache.doris.analysis.FloatLiteral; +import org.apache.doris.analysis.IntLiteral; +import org.apache.doris.analysis.LargeIntLiteral; +import org.apache.doris.analysis.LiteralExpr; +import org.apache.doris.analysis.StatementBase; +import org.apache.doris.analysis.StringLiteral; +import org.apache.doris.analysis.UserIdentity; +import org.apache.doris.catalog.Env; +import org.apache.doris.catalog.PrimitiveType; +import org.apache.doris.catalog.ScalarType; +import org.apache.doris.catalog.Type; +import org.apache.doris.common.AnalysisException; +import org.apache.doris.common.Config; +import org.apache.doris.common.UserException; +import org.apache.doris.qe.ConnectContext; +import org.apache.doris.qe.SessionVariable; +import org.apache.doris.qe.StmtExecutor; +import org.apache.doris.statistics.util.InternalQueryResult.ResultRow; +import org.apache.doris.system.SystemInfoService; +import org.apache.doris.thrift.TUniqueId; + +import com.google.common.base.Preconditions; +import org.apache.thrift.TException; + +import java.time.LocalDateTime; +import java.time.ZoneId; +import java.time.format.DateTimeFormatter; +import java.util.ArrayList; +import java.util.List; +import java.util.UUID; +import java.util.stream.Collectors; + +public class StatisticUtil { + + public static List<ResultRow> execStatisticQuery(String sql) { + ConnectContext connectContext = StatisticUtil.buildConnectContext(); + StmtExecutor stmtExecutor = new StmtExecutor(connectContext, sql); + connectContext.setExecutor(stmtExecutor); + return stmtExecutor.executeInternalQuery(); + } + + public static void execUpdate(String sql) throws Exception { + ConnectContext connectContext = StatisticUtil.buildConnectContext(); + StmtExecutor stmtExecutor = new StmtExecutor(connectContext, sql); + connectContext.setExecutor(stmtExecutor); + stmtExecutor.execute(); + } + + // TODO: finish this. + public static List<AnalysisJobInfo> deserializeToAnalysisJob(List<ResultRow> resultBatches) throws TException { + return new ArrayList<>(); + } + + public static List<ColumnStatistic> deserializeToColumnStatistics(List<ResultRow> resultBatches) + throws Exception { + return resultBatches.stream().map(ColumnStatistic::fromResultRow).collect(Collectors.toList()); + } + + public static ConnectContext buildConnectContext() { + ConnectContext connectContext = new ConnectContext(); + SessionVariable sessionVariable = connectContext.getSessionVariable(); + sessionVariable.internalSession = true; + sessionVariable.setMaxExecMemByte(Config.statistics_max_mem_per_query_in_bytes); + sessionVariable.setEnableInsertStrict(true); + sessionVariable.parallelExecInstanceNum = Config.statistic_parallel_exec_instance_num; + connectContext.setEnv(Env.getCurrentEnv()); + connectContext.setDatabase(StatisticConstants.STATISTIC_DB_NAME); + connectContext.setQualifiedUser(UserIdentity.ROOT.getQualifiedUser()); + connectContext.setCurrentUserIdentity(UserIdentity.ROOT); + UUID uuid = UUID.randomUUID(); + TUniqueId queryId = new TUniqueId(uuid.getMostSignificantBits(), uuid.getLeastSignificantBits()); + connectContext.setQueryId(queryId); + connectContext.setThreadLocalInfo(); + connectContext.setStartTime(); + connectContext.setCluster(SystemInfoService.DEFAULT_CLUSTER); + return connectContext; + } + + public static void analyze(StatementBase statementBase) throws UserException { + Analyzer analyzer = new Analyzer(Env.getCurrentEnv(), buildConnectContext()); + statementBase.analyze(analyzer); + } + + public static double convertToDouble(Type type, String columnValue) throws AnalysisException { Review Comment: This logic is completely same as the original definition in the ColumnStat -- This is an automated message from the Apache Git Service. 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