Exemplo n.º 1
0
        public void TestBuildNoOuter()
        {
            var graph = MakeQueryGraph();
            var spec  = TwoStreamQueryPlanBuilder.Build(typesPerStream, graph, null, new StreamJoinAnalysisResultCompileTime(2));

            EPAssertionUtil.AssertEqualsExactOrder(new[] { "P01", "P02" }, spec.IndexSpecs[0].IndexProps[0]);
            EPAssertionUtil.AssertEqualsExactOrder(new[] { "P11", "P12" }, spec.IndexSpecs[1].IndexProps[0]);
            Assert.AreEqual(2, spec.ExecNodeSpecs.Length);
        }
Exemplo n.º 2
0
        public void TestBuildOuter()
        {
            var graph = MakeQueryGraph();
            var spec  = TwoStreamQueryPlanBuilder.Build(typesPerStream, graph, OuterJoinType.LEFT, new StreamJoinAnalysisResultCompileTime(2));

            EPAssertionUtil.AssertEqualsExactOrder(new[] { "P01", "P02" }, spec.IndexSpecs[0].IndexProps[0]);
            EPAssertionUtil.AssertEqualsExactOrder(new[] { "P11", "P12" }, spec.IndexSpecs[1].IndexProps[0]);
            Assert.AreEqual(2, spec.ExecNodeSpecs.Length);
            Assert.AreEqual(typeof(TableOuterLookupNodeForge), spec.ExecNodeSpecs[0].GetType());
            Assert.AreEqual(typeof(TableLookupNodeForge), spec.ExecNodeSpecs[1].GetType());
        }
Exemplo n.º 3
0
        public static QueryPlanForgeDesc GetPlan(
            EventType[] typesPerStream,
            OuterJoinDesc[] outerJoinDescList,
            QueryGraphForge queryGraph,
            string[] streamNames,
            HistoricalViewableDesc historicalViewableDesc,
            DependencyGraph dependencyGraph,
            HistoricalStreamIndexListForge[] historicalStreamIndexLists,
            StreamJoinAnalysisResultCompileTime streamJoinAnalysisResult,
            bool isQueryPlanLogging,
            StatementRawInfo statementRawInfo,
            StatementCompileTimeServices services)
        {
            string methodName = ".getPlan ";

            int numStreams = typesPerStream.Length;
            if (numStreams < 2) {
                throw new ArgumentException("Number of join stream types is less then 2");
            }

            if (outerJoinDescList.Length >= numStreams) {
                throw new ArgumentException("Too many outer join descriptors found");
            }

            if (numStreams == 2) {
                OuterJoinType? outerJoinType = null;
                if (outerJoinDescList.Length > 0) {
                    outerJoinType = outerJoinDescList[0].OuterJoinType;
                }

                QueryPlanForgeDesc queryPlan = TwoStreamQueryPlanBuilder.Build(
                    typesPerStream,
                    queryGraph,
                    outerJoinType,
                    streamJoinAnalysisResult,
                    statementRawInfo);
                RemoveUnidirectionalAndTable(queryPlan.Forge, streamJoinAnalysisResult);

                if (Log.IsDebugEnabled) {
                    Log.Debug(methodName + "2-Stream queryPlan=" + queryPlan);
                }

                return queryPlan;
            }

            bool hasPreferMergeJoin = HintEnum.PREFER_MERGE_JOIN.GetHint(statementRawInfo.Annotations) != null;
            bool hasForceNestedIter = HintEnum.FORCE_NESTED_ITER.GetHint(statementRawInfo.Annotations) != null;
            bool isAllInnerJoins = outerJoinDescList.Length == 0 ||
                                   OuterJoinDesc.ConsistsOfAllInnerJoins(outerJoinDescList);

            if (isAllInnerJoins && !hasPreferMergeJoin) {
                QueryPlanForgeDesc queryPlan = NStreamQueryPlanBuilder.Build(
                    queryGraph,
                    typesPerStream,
                    historicalViewableDesc,
                    dependencyGraph,
                    historicalStreamIndexLists,
                    hasForceNestedIter,
                    streamJoinAnalysisResult.UniqueKeys,
                    streamJoinAnalysisResult.TablesPerStream,
                    streamJoinAnalysisResult,
                    statementRawInfo,
                    services.SerdeResolver);

                if (queryPlan != null) {
                    RemoveUnidirectionalAndTable(queryPlan.Forge, streamJoinAnalysisResult);

                    if (Log.IsDebugEnabled) {
                        Log.Debug(methodName + "N-Stream inner-join queryPlan=" + queryPlan);
                    }

                    return queryPlan;
                }

                if (isQueryPlanLogging && QUERY_PLAN_LOG.IsInfoEnabled) {
                    Log.Info("Switching to Outer-NStream algorithm for query plan");
                }
            }

            QueryPlanForgeDesc queryPlanX = NStreamOuterQueryPlanBuilder.Build(
                queryGraph,
                outerJoinDescList,
                streamNames,
                typesPerStream,
                historicalViewableDesc,
                dependencyGraph,
                historicalStreamIndexLists,
                streamJoinAnalysisResult.UniqueKeys,
                streamJoinAnalysisResult.TablesPerStream,
                streamJoinAnalysisResult,
                statementRawInfo,
                services);
            RemoveUnidirectionalAndTable(queryPlanX.Forge, streamJoinAnalysisResult);
            return queryPlanX;
        }