morrySnow commented on code in PR #45045: URL: https://github.com/apache/doris/pull/45045#discussion_r1891113247
########## fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/CollectRelation.java: ########## @@ -0,0 +1,190 @@ +// 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.rules.analysis; + +import org.apache.doris.catalog.Env; +import org.apache.doris.catalog.MTMV; +import org.apache.doris.catalog.TableIf; +import org.apache.doris.catalog.View; +import org.apache.doris.mtmv.BaseTableInfo; +import org.apache.doris.mtmv.MTMVUtil; +import org.apache.doris.nereids.CTEContext; +import org.apache.doris.nereids.CascadesContext; +import org.apache.doris.nereids.StatementContext.TableFrom; +import org.apache.doris.nereids.analyzer.UnboundRelation; +import org.apache.doris.nereids.analyzer.UnboundResultSink; +import org.apache.doris.nereids.analyzer.UnboundTableSink; +import org.apache.doris.nereids.parser.NereidsParser; +import org.apache.doris.nereids.pattern.MatchingContext; +import org.apache.doris.nereids.properties.PhysicalProperties; +import org.apache.doris.nereids.rules.Rule; +import org.apache.doris.nereids.rules.RuleType; +import org.apache.doris.nereids.trees.expressions.SubqueryExpr; +import org.apache.doris.nereids.trees.plans.Plan; +import org.apache.doris.nereids.trees.plans.logical.LogicalPlan; +import org.apache.doris.nereids.util.RelationUtil; + +import com.google.common.collect.ImmutableList; +import com.google.common.collect.Lists; + +import java.util.List; +import java.util.Optional; +import java.util.Set; +import java.util.stream.Collectors; + +/** + * Rule to bind relations in query plan. + */ +public class CollectRelation implements AnalysisRuleFactory { + + public CollectRelation() {} + + @Override + public List<Rule> buildRules() { + return ImmutableList.of( + unboundRelation() + .thenApply(this::collectFromUnboundRelation) + .toRule(RuleType.COLLECT_TABLE_FROM_RELATION), + unboundTableSink() + .thenApply(this::collectFromUnboundTableSink) + .toRule(RuleType.COLLECT_TABLE_FROM_SINK), + any().whenNot(UnboundRelation.class::isInstance) + .whenNot(UnboundTableSink.class::isInstance) + .thenApply(this::collectFromAny) + .toRule(RuleType.COLLECT_TABLE_FROM_OTHER) + ); + } + + private Plan collectFromAny(MatchingContext<Plan> ctx) { + Set<SubqueryExpr> subqueryExprs = ctx.root.getExpressions().stream() + .<Set<SubqueryExpr>>map(p -> p.collect(SubqueryExpr.class::isInstance)) + .flatMap(Set::stream) + .collect(Collectors.toSet()); + for (SubqueryExpr subqueryExpr : subqueryExprs) { + CascadesContext subqueryContext = CascadesContext.newContextWithCteContext( + ctx.cascadesContext, subqueryExpr.getQueryPlan(), ctx.cteContext); + subqueryContext.keepOrShowPlanProcess(ctx.cascadesContext.showPlanProcess(), + () -> subqueryContext.newTableCollector().collect()); + ctx.cascadesContext.addPlanProcesses(subqueryContext.getPlanProcesses()); + } + return null; + } + + private Plan collectFromUnboundTableSink(MatchingContext<UnboundTableSink<Plan>> ctx) { + List<String> nameParts = ctx.root.getNameParts(); + switch (nameParts.size()) { + case 1: + // table + // Use current database name from catalog. + case 2: + // db.table + // Use database name from table name parts. + case 3: + // catalog.db.table + // Use catalog and database name from name parts. + collectFromUnboundRelation(ctx.cascadesContext, nameParts, TableFrom.INSERT_TARGET, false); + return null; + default: + throw new IllegalStateException("Insert target name is invalid."); + } + } + + private Plan collectFromUnboundRelation(MatchingContext<UnboundRelation> ctx) { + List<String> nameParts = ctx.root.getNameParts(); + switch (nameParts.size()) { + case 1: + // table + // Use current database name from catalog. + case 2: + // db.table + // Use database name from table name parts. + case 3: + // catalog.db.table + // Use catalog and database name from name parts. + collectFromUnboundRelation(ctx.cascadesContext, nameParts, TableFrom.QUERY, true); + return null; + default: + throw new IllegalStateException("Table name [" + ctx.root.getTableName() + "] is invalid."); + } + } + + private void collectFromUnboundRelation(CascadesContext cascadesContext, + List<String> nameParts, TableFrom tableFrom, boolean collectMTMV) { + if (nameParts.size() == 1) { + String tableName = nameParts.get(0); + // check if it is a CTE's name + CTEContext cteContext = cascadesContext.getCteContext().findCTEContext(tableName).orElse(null); + if (cteContext != null) { + Optional<LogicalPlan> analyzedCte = cteContext.getAnalyzedCTEPlan(tableName); + if (analyzedCte.isPresent()) { + return; + } + } + } + List<String> tableQualifier = RelationUtil.getQualifierName(cascadesContext.getConnectContext(), nameParts); + TableIf table = cascadesContext.getConnectContext().getStatementContext() + .getAndCacheTable(tableQualifier, tableFrom); + if (collectMTMV) { + collectMTMVCandidates(table, cascadesContext); + } + if (table instanceof View) { + processView((View) table, cascadesContext); + } + } + + private void collectMTMVCandidates(TableIf table, CascadesContext cascadesContext) { + if (cascadesContext.getConnectContext().getSessionVariable().enableMaterializedViewRewrite) { + Set<MTMV> mtmvSet = Env.getCurrentEnv().getMtmvService().getRelationManager() + .getAvailableMTMVs(Lists.newArrayList(new BaseTableInfo(table)), + cascadesContext.getConnectContext(), + false, ((connectContext, mtmv) + -> MTMVUtil.mtmvContainsExternalTable(mtmv) + && !connectContext.getSessionVariable() + .isEnableMaterializedViewRewriteWhenBaseTableUnawareness())); + for (MTMV mtmv : mtmvSet) { + cascadesContext.getStatementContext().getMtmvRelatedTables().put(mtmv.getFullQualifiers(), mtmv); + mtmv.readMvLock(); + try { + for (BaseTableInfo baseTableInfo : mtmv.getRelation().getBaseTables()) { + cascadesContext.getStatementContext().getAndCacheTable(baseTableInfo.toList(), TableFrom.MTMV); + } + } finally { + mtmv.readMvUnlock(); + } + } + } + } + + private void processView(View view, CascadesContext cascadesContext) { + String inlineViewDef = view.getInlineViewDef(); + parseAndCollectFromView(inlineViewDef, cascadesContext); + } + + private void parseAndCollectFromView(String ddlSql, CascadesContext parentContext) { + LogicalPlan parsedViewPlan = new NereidsParser().parseSingle(ddlSql); + // TODO: use a good to do this, such as eliminate UnboundResultSink + if (parsedViewPlan instanceof UnboundResultSink) { + parsedViewPlan = (LogicalPlan) ((UnboundResultSink<?>) parsedViewPlan).child(); + } + CascadesContext viewContext = CascadesContext.initContext( + parentContext.getStatementContext(), parsedViewPlan, PhysicalProperties.ANY); + viewContext.keepOrShowPlanProcess(parentContext.showPlanProcess(), + () -> viewContext.newTableCollector().collect()); + parentContext.addPlanProcesses(viewContext.getPlanProcesses()); + } Review Comment: done -- This is an automated message from the Apache Git Service. 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