wsjz commented on code in PR #23485: URL: https://github.com/apache/doris/pull/23485#discussion_r1319489836
########## fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/LoadCommand.java: ########## @@ -0,0 +1,385 @@ +// 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.nereids.trees.plans.commands; + +import org.apache.doris.analysis.BulkLoadDataDesc; +import org.apache.doris.analysis.BulkStorageDesc; +import org.apache.doris.catalog.Column; +import org.apache.doris.catalog.OlapTable; +import org.apache.doris.catalog.TableIf; +import org.apache.doris.common.AnalysisException; +import org.apache.doris.common.ErrorCode; +import org.apache.doris.common.NereidsException; +import org.apache.doris.common.UserException; +import org.apache.doris.common.profile.Profile; +import org.apache.doris.datasource.property.constants.S3Properties; +import org.apache.doris.load.loadv2.LoadTask; +import org.apache.doris.nereids.analyzer.UnboundAlias; +import org.apache.doris.nereids.analyzer.UnboundOlapTableSink; +import org.apache.doris.nereids.analyzer.UnboundSlot; +import org.apache.doris.nereids.analyzer.UnboundTVFRelation; +import org.apache.doris.nereids.trees.expressions.CaseWhen; +import org.apache.doris.nereids.trees.expressions.EqualTo; +import org.apache.doris.nereids.trees.expressions.Expression; +import org.apache.doris.nereids.trees.expressions.NamedExpression; +import org.apache.doris.nereids.trees.expressions.Properties; +import org.apache.doris.nereids.trees.expressions.StatementScopeIdGenerator; +import org.apache.doris.nereids.trees.expressions.WhenClause; +import org.apache.doris.nereids.trees.expressions.literal.TinyIntLiteral; +import org.apache.doris.nereids.trees.plans.Explainable; +import org.apache.doris.nereids.trees.plans.Plan; +import org.apache.doris.nereids.trees.plans.PlanType; +import org.apache.doris.nereids.trees.plans.logical.LogicalCheckPolicy; +import org.apache.doris.nereids.trees.plans.logical.LogicalFilter; +import org.apache.doris.nereids.trees.plans.logical.LogicalPlan; +import org.apache.doris.nereids.trees.plans.logical.LogicalProject; +import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor; +import org.apache.doris.nereids.util.ExpressionUtils; +import org.apache.doris.nereids.util.RelationUtil; +import org.apache.doris.qe.ConnectContext; +import org.apache.doris.qe.QueryStateException; +import org.apache.doris.qe.StmtExecutor; +import org.apache.doris.tablefunction.ExternalFileTableValuedFunction; +import org.apache.doris.tablefunction.HdfsTableValuedFunction; +import org.apache.doris.tablefunction.S3TableValuedFunction; + +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.VerifyException; +import com.google.common.collect.ImmutableList; +import org.apache.commons.lang3.StringUtils; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.HashSet; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Optional; +import java.util.Set; + +/** + * export table + */ +public class LoadCommand extends Command implements ForwardWithSync, Explainable { + public static final Logger LOG = LogManager.getLogger(LoadCommand.class); + private final String labelName; + private final BulkStorageDesc bulkStorageDesc; + private final List<BulkLoadDataDesc> sourceInfos; + private final Map<String, String> properties; + private final String comment; + private final List<LogicalPlan> plans = new ArrayList<>(); + private Profile profile; + + /** + * constructor of ExportCommand + */ + public LoadCommand(String labelName, List<BulkLoadDataDesc> sourceInfos, BulkStorageDesc bulkStorageDesc, + Map<String, String> properties, String comment) { + super(PlanType.LOAD_COMMAND); + this.labelName = Objects.requireNonNull(labelName.trim(), "labelName should not null"); + this.sourceInfos = Objects.requireNonNull(sourceInfos, "sourceInfos should not null"); + this.properties = Objects.requireNonNull(properties, "properties should not null"); + this.bulkStorageDesc = Objects.requireNonNull(bulkStorageDesc, "bulkStorageDesc should not null"); + this.comment = Objects.requireNonNull(comment, "comment should not null"); + } + + /** + * for test print + * @param ctx context + * @return parsed insert into plan + */ + @VisibleForTesting + public List<LogicalPlan> parseToInsertIntoPlan(ConnectContext ctx) throws AnalysisException { + List<LogicalPlan> plans = new ArrayList<>(); + for (BulkLoadDataDesc dataDesc : sourceInfos) { + ctx.getState().setNereids(true); + plans.add(completeQueryPlan(ctx, dataDesc)); + } + return plans; + } + + @Override + public void run(ConnectContext ctx, StmtExecutor executor) throws Exception { + this.profile = new Profile("Query", ctx.getSessionVariable().enableProfile); + // TODO: begin txn form multi insert sql + profile.getSummaryProfile().setQueryBeginTime(); + for (BulkLoadDataDesc dataDesc : sourceInfos) { + ctx.getState().setNereids(true); + plans.add(new InsertIntoTableCommand(completeQueryPlan(ctx, dataDesc), Optional.of(labelName), false)); + } + profile.getSummaryProfile().setQueryPlanFinishTime(); + executeInsertStmtPlan(ctx, executor, plans); + } + + private LogicalPlan completeQueryPlan(ConnectContext ctx, BulkLoadDataDesc dataDesc) + throws AnalysisException { + if (LOG.isDebugEnabled()) { + LOG.debug("nereids load stmt before conversion: {}", dataDesc.toSql()); + } + // build source columns, add select and insert node. + List<String> sinkCols = new ArrayList<>(); + // contains the map of olap column to FileFieldNames, ColumnMappingList, ColumnsFromPath. + Map<String, NamedExpression> originSinkToSourceMap = new LinkedHashMap<>(); + OlapTable olapTable = getOlapTable(ctx, dataDesc); + buildSinkColumns(olapTable, dataDesc, sinkCols, originSinkToSourceMap); + + Map<String, String> properties = getTvfProperties(dataDesc, bulkStorageDesc); + // mapping sink colum to mapping expression + if (!dataDesc.getColumnMappingList().isEmpty()) { + for (Expression mappingExpr : dataDesc.getColumnMappingList()) { + if (!(mappingExpr instanceof EqualTo)) { + continue; + } + String mappingColumn = ((EqualTo) mappingExpr).left().toSql(); + if (originSinkToSourceMap.containsKey(mappingColumn)) { + Expression mappingExprAlias = ((EqualTo) mappingExpr).right(); + originSinkToSourceMap.put(mappingColumn, new UnboundAlias(mappingExprAlias, mappingColumn)); + } + } + } + + for (String columnFromPath : dataDesc.getColumnsFromPath()) { + sinkCols.add(columnFromPath); + // columnFromPath will be parsed by BE, put columns as placeholder. Review Comment: > I think the columnFromPath should be parsed by FE, and after parsing, we only need to add the parsed constant value here But now we pass the columnFromPath to BE by 'path_partition_keys', and the operator at BE will parse path value and compute with 'path_partition_keys'. On the other hand, the constant value is bound with rows in a file, only BE can do this when read all values from file. So how to do the these above if process columnFromPath on FE ? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
