sohardforaname commented on code in PR #18869: URL: https://github.com/apache/doris/pull/18869#discussion_r1192078375
########## fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/InsertIntoTableCommand.java: ########## @@ -0,0 +1,271 @@ +// 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.Expr; +import org.apache.doris.analysis.LiteralExpr; +import org.apache.doris.analysis.SlotDescriptor; +import org.apache.doris.analysis.TupleDescriptor; +import org.apache.doris.catalog.Column; +import org.apache.doris.catalog.Database; +import org.apache.doris.catalog.Env; +import org.apache.doris.catalog.OlapTable; +import org.apache.doris.catalog.Partition; +import org.apache.doris.catalog.Table; +import org.apache.doris.datasource.CatalogIf; +import org.apache.doris.nereids.NereidsPlanner; +import org.apache.doris.nereids.exceptions.AnalysisException; +import org.apache.doris.nereids.glue.LogicalPlanAdapter; +import org.apache.doris.nereids.properties.DistributionSpecHash; +import org.apache.doris.nereids.properties.DistributionSpecHash.ShuffleType; +import org.apache.doris.nereids.properties.PhysicalProperties; +import org.apache.doris.nereids.trees.expressions.ExprId; +import org.apache.doris.nereids.trees.expressions.NamedExpression; +import org.apache.doris.nereids.trees.expressions.Slot; +import org.apache.doris.nereids.trees.plans.PlanType; +import org.apache.doris.nereids.trees.plans.logical.LogicalPlan; +import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor; +import org.apache.doris.nereids.txn.Transaction; +import org.apache.doris.nereids.util.RelationUtil; +import org.apache.doris.planner.DataSink; +import org.apache.doris.planner.OlapTableSink; +import org.apache.doris.planner.PlanFragment; +import org.apache.doris.qe.ConnectContext; +import org.apache.doris.qe.StmtExecutor; + +import com.google.common.base.Preconditions; +import com.google.common.collect.Lists; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; + +import java.util.List; +import java.util.stream.Collectors; + +/** + * insert into select command implementation + * + * insert into select command support the grammer: explain? insert into table columns? partitions? hints? query + * InsertIntoTableCommand is a command to represent insert the answer of a query into a table. + * class structure's: + * InsertIntoTableCommand(Query()) + * InsertIntoTableCommand(ExplainCommand(Query())) + */ +public class InsertIntoTableCommand extends Command implements ForwardWithSync { + public static final Logger LOG = LogManager.getLogger(InsertIntoTableCommand.class); + private final List<String> tableName; + private final List<String> colNames; + private final LogicalPlan logicalQuery; + private final String labelName; + private Database database; + private Table table; + private NereidsPlanner planner; + private TupleDescriptor olapTuple; + private List<String> partitions; + private List<String> hints; + private List<Column> targetColumns; + private List<Long> partitionIds = null; + + /** + * constructor + */ + public InsertIntoTableCommand(List<String> tableName, String labelName, List<String> colNames, + List<String> partitions, List<String> hints, LogicalPlan logicalQuery) { + super(PlanType.INSERT_INTO_SELECT_COMMAND); + Preconditions.checkArgument(tableName != null, "tableName cannot be null in insert-into-select command"); + Preconditions.checkArgument(logicalQuery != null, "logicalQuery cannot be null in insert-into-select command"); + this.tableName = tableName; + this.labelName = labelName; + this.colNames = colNames; + this.partitions = partitions; + this.hints = hints; + this.logicalQuery = logicalQuery; + } + + public NereidsPlanner getPlanner() { + return planner; + } + + @Override + public void run(ConnectContext ctx, StmtExecutor executor) throws Exception { + if (ctx.isTxnModel()) { + // in original planner and in txn model, we can execute sql like: insert into t select 1, 2, 3 + // but no data will be inserted, now we adjust forbid it. + throw new AnalysisException("insert into table command is not supported in txn model"); + } + checkDatabaseAndTable(ctx); + getColumns(); + getPartition(); + + ctx.getStatementContext().getInsertIntoContext().setTargetSchema(targetColumns); + + LogicalPlanAdapter logicalPlanAdapter = new LogicalPlanAdapter(extractPlan(logicalQuery), + ctx.getStatementContext()); + planner = new NereidsPlanner(ctx.getStatementContext()); + planner.plan(logicalPlanAdapter, ctx.getSessionVariable().toThrift()); + + getTupleDesc(); + addUnassignedColumns(); + + if (ctx.getMysqlChannel() != null) { + ctx.getMysqlChannel().reset(); + } + String label = this.labelName; + if (label == null) { + label = String.format("label_%x_%x", ctx.queryId().hi, ctx.queryId().lo); + } + + Transaction txn; + PlanFragment root = planner.getFragments().get(0); + DataSink sink = createDataSink(ctx, root); + Preconditions.checkArgument(sink instanceof OlapTableSink, "olap table sink is expected when" + + " running insert into select"); + txn = new Transaction(ctx, database, table, label, planner); + + OlapTableSink olapTableSink = ((OlapTableSink) sink); + olapTableSink.init(ctx.queryId(), txn.getTxnId(), database.getId(), ctx.getExecTimeout(), + ctx.getSessionVariable().getSendBatchParallelism(), false); + olapTableSink.complete(); + root.resetSink(olapTableSink); + + if (isExplain()) { + executor.handleExplainStmt(((ExplainCommand) logicalQuery).getExplainString(planner)); + return; + } + + txn.executeInsertIntoSelectCommand(executor); + } + + private void checkDatabaseAndTable(ConnectContext ctx) { Review Comment: What does it mean？ -- This is an automated message from the Apache Git Service. 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