Examples with PlanSymbolAllocator io.prestosql.sql.planner.PlanSymbolAllocator used on opensource projects

Example 11 with PlanSymbolAllocator

use of io.prestosql.sql.planner.PlanSymbolAllocator in project hetu-core by openlookeng.

the class StarTreeAggregationRule method optimize.

public Result optimize(AggregationNode aggregationNode, final PlanNode filterNode, TableScanNode tableScanNode, Map<String, Object> symbolMapping, Session session, PlanSymbolAllocator symbolAllocator, PlanNodeIdAllocator idAllocator, WarningCollector warningCollector) {
    TableHandle tableHandle = tableScanNode.getTable();
    TableMetadata tableMetadata = metadata.getTableMetadata(session, tableHandle);
    String tableName = tableMetadata.getQualifiedName().toString();
    CubeStatement statement = CubeStatementGenerator.generate(tableName, aggregationNode, symbolMapping);
    // Don't use star-tree for non-aggregate queries
    if (statement.getAggregations().isEmpty()) {
        return Result.empty();
    }
    boolean hasDistinct = statement.getAggregations().stream().anyMatch(AggregationSignature::isDistinct);
    // Since cube is pre-aggregated, utilising it for such queries could return incorrect result
    if (aggregationNode.hasEmptyGroupingSet() && hasDistinct) {
        return Result.empty();
    }
    List<CubeMetadata> cubeMetadataList = CubeMetadata.filter(this.cubeMetaStore.getMetadataList(statement.getFrom()), statement);
    // Compare FilterNode predicate with Cube predicates to evaluate which cube can be used.
    List<CubeMetadata> matchedCubeMetadataList = cubeMetadataList.stream().filter(cubeMetadata -> filterPredicateMatches((FilterNode) filterNode, cubeMetadata, session, symbolAllocator.getTypes())).collect(Collectors.toList());
    // Match based on filter conditions
    if (matchedCubeMetadataList.isEmpty()) {
        return Result.empty();
    }
    LongSupplier lastModifiedTimeSupplier = metadata.getTableLastModifiedTimeSupplier(session, tableHandle);
    if (lastModifiedTimeSupplier == null) {
        warningCollector.add(new PrestoWarning(EXPIRED_CUBE, "Unable to identify last modified time of " + tableName + ". Ignoring star tree cubes."));
        return Result.empty();
    }
    // Filter out cubes that were created before the source table was updated
    long lastModifiedTime = lastModifiedTimeSupplier.getAsLong();
    // There was a problem retrieving last modified time, we should skip using star tree rather than failing the query
    if (lastModifiedTime == -1L) {
        return Result.empty();
    }
    matchedCubeMetadataList = matchedCubeMetadataList.stream().filter(cubeMetadata -> cubeMetadata.getSourceTableLastUpdatedTime() >= lastModifiedTime).collect(Collectors.toList());
    if (matchedCubeMetadataList.isEmpty()) {
        warningCollector.add(new PrestoWarning(EXPIRED_CUBE, tableName + " has been modified after creating cubes. Ignoring expired cubes."));
        return Result.empty();
    }
    // If multiple cubes are matching then lets select the recent built cube
    // so sort the cube based on the last updated time stamp
    matchedCubeMetadataList.sort(Comparator.comparingLong(CubeMetadata::getLastUpdatedTime).reversed());
    CubeMetadata matchedCubeMetadata = matchedCubeMetadataList.get(0);
    AggregationRewriteWithCube aggregationRewriteWithCube = new AggregationRewriteWithCube(metadata, session, symbolAllocator, idAllocator, symbolMapping, matchedCubeMetadata);
    return Result.ofPlanNode(aggregationRewriteWithCube.rewrite(aggregationNode, rewriteByRemovingSourceFilter(filterNode, matchedCubeMetadata)));
}

Example 12 with PlanSymbolAllocator

use of io.prestosql.sql.planner.PlanSymbolAllocator in project boostkit-bigdata by kunpengcompute.

the class TestHiveFilterPushdown method testFilterPushdownWithAlias.

@Test
public void testFilterPushdownWithAlias() {
    Map<Symbol, Type> initialSymbolsMap = new HashMap<>(SYMBOL_ALLOCATOR.getSymbols());
    Symbol oldSymbol = new Symbol(COLUMN_INT.getName());
    assertTrue(initialSymbolsMap.containsKey(oldSymbol));
    Type columnType = initialSymbolsMap.remove(oldSymbol);
    String columnMappingName = COLUMN_INT.getName() + "_0";
    initialSymbolsMap.put(new Symbol(columnMappingName), columnType);
    PlanSymbolAllocator symbolAllocator = new PlanSymbolAllocator(initialSymbolsMap);
    List<String> names = ImmutableList.of(columnMappingName);
    List<HiveColumnHandle> columnHandles = ImmutableList.of(COLUMN_INT);
    TableScanNode tableScanNode = buildTableScanNodeWithAlias(names, columnHandles);
    String predicate = String.format("%s > 5", columnMappingName);
    RowExpression expression = TRANSLATOR.translate(predicate, symbolAllocator.getSymbols());
    FilterNode filterNode = buildFilterNode(tableScanNode, expression);
    Map<String, Type> columnTypesMap = new HashMap<>(COLUMN_TYPE_MAP);
    columnTypesMap.remove(COLUMN_INT.getName());
    columnTypesMap.put(columnMappingName, columnType);
    PlanNode node = FILTER_OPTIMIZER.optimize(filterNode, OFFLOAD_SESSION, columnTypesMap, symbolAllocator, ID_ALLOCATOR);
    matchFilterOffloadWithAlias(node, "GREATER_THAN(_int, 5)");
}

Example 13 with PlanSymbolAllocator

use of io.prestosql.sql.planner.PlanSymbolAllocator in project hetu-core by openlookeng.

the class PushAggregationThroughOuterJoin method createAggregationOverNull.

private Optional<MappedAggregationInfo> createAggregationOverNull(AggregationNode referenceAggregation, PlanSymbolAllocator planSymbolAllocator, PlanNodeIdAllocator idAllocator, Lookup lookup) {
    // Create a values node that consists of a single row of nulls.
    // Map the output symbols from the referenceAggregation's source
    // to symbol references for the new values node.
    ImmutableList.Builder<Symbol> nullSymbols = ImmutableList.builder();
    ImmutableList.Builder<RowExpression> nullLiterals = ImmutableList.builder();
    ImmutableMap.Builder<VariableReferenceExpression, VariableReferenceExpression> sourcesSymbolMappingBuilder = ImmutableMap.builder();
    for (Symbol sourceSymbol : referenceAggregation.getSource().getOutputSymbols()) {
        RowExpression nullLiteral = new ConstantExpression(null, planSymbolAllocator.getTypes().get(sourceSymbol));
        nullLiterals.add(nullLiteral);
        Symbol nullSymbol = planSymbolAllocator.newSymbol(nullLiteral);
        nullSymbols.add(nullSymbol);
        sourcesSymbolMappingBuilder.put(toVariableReference(sourceSymbol, planSymbolAllocator.getTypes().get(sourceSymbol)), toVariableReference(nullSymbol, nullLiteral.getType()));
    }
    ValuesNode nullRow = new ValuesNode(idAllocator.getNextId(), nullSymbols.build(), ImmutableList.of(nullLiterals.build()));
    Map<VariableReferenceExpression, VariableReferenceExpression> sourcesSymbolMapping = sourcesSymbolMappingBuilder.build();
    // For each aggregation function in the reference node, create a corresponding aggregation function
    // that points to the nullRow. Map the symbols from the aggregations in referenceAggregation to the
    // symbols in these new aggregations.
    ImmutableMap.Builder<Symbol, Symbol> aggregationsSymbolMappingBuilder = ImmutableMap.builder();
    ImmutableMap.Builder<Symbol, AggregationNode.Aggregation> aggregationsOverNullBuilder = ImmutableMap.builder();
    for (Map.Entry<Symbol, AggregationNode.Aggregation> entry : referenceAggregation.getAggregations().entrySet()) {
        Symbol aggregationSymbol = entry.getKey();
        AggregationNode.Aggregation aggregation = entry.getValue();
        if (!isUsingVariables(aggregation, sourcesSymbolMapping.keySet())) {
            return Optional.empty();
        }
        Aggregation overNullAggregation = new Aggregation(new CallExpression(aggregation.getFunctionCall().getDisplayName(), aggregation.getFunctionCall().getFunctionHandle(), aggregation.getFunctionCall().getType(), aggregation.getArguments().stream().map(argument -> inlineVariables(sourcesSymbolMapping, argument)).collect(toImmutableList()), Optional.empty()), aggregation.getArguments().stream().map(argument -> inlineVariables(sourcesSymbolMapping, argument)).collect(toImmutableList()), aggregation.isDistinct(), aggregation.getFilter(), aggregation.getOrderingScheme(), aggregation.getMask());
        Symbol overNullSymbol = planSymbolAllocator.newSymbol(overNullAggregation.getFunctionCall().getDisplayName(), planSymbolAllocator.getTypes().get(aggregationSymbol));
        aggregationsOverNullBuilder.put(overNullSymbol, overNullAggregation);
        aggregationsSymbolMappingBuilder.put(aggregationSymbol, overNullSymbol);
    }
    Map<Symbol, Symbol> aggregationsSymbolMapping = aggregationsSymbolMappingBuilder.build();
    // create an aggregation node whose source is the null row.
    AggregationNode aggregationOverNullRow = new AggregationNode(idAllocator.getNextId(), nullRow, aggregationsOverNullBuilder.build(), globalAggregation(), ImmutableList.of(), AggregationNode.Step.SINGLE, Optional.empty(), Optional.empty(), AggregationNode.AggregationType.HASH, Optional.empty());
    return Optional.of(new MappedAggregationInfo(aggregationOverNullRow, aggregationsSymbolMapping));
}

Example 14 with PlanSymbolAllocator

use of io.prestosql.sql.planner.PlanSymbolAllocator in project hetu-core by openlookeng.

the class TestStarTreeAggregationRule method setupBeforeClass.

@BeforeClass
public void setupBeforeClass() {
    PlanSymbolAllocator symbolAllocator = new PlanSymbolAllocator();
    columnOrderkey = symbolAllocator.newSymbol("orderkey", BIGINT);
    columnOrderDate = symbolAllocator.newSymbol("orderdate", DATE);
    columnCustkey = symbolAllocator.newSymbol("custkey", BIGINT);
    columnTotalprice = symbolAllocator.newSymbol("totalprice", DOUBLE);
    orderkeyHandle = new TpchColumnHandle("orderkey", BIGINT);
    orderdateHandle = new TpchColumnHandle("orderdate", DATE);
    custkeyHandle = new TpchColumnHandle("custkey", BIGINT);
    totalpriceHandle = new TpchColumnHandle("totalprice", DOUBLE);
    ColumnMetadata orderKeyColumnMetadata = new ColumnMetadata(orderkeyHandle.getColumnName(), orderkeyHandle.getType());
    ColumnMetadata orderDateColumnMetadata = new ColumnMetadata(orderdateHandle.getColumnName(), orderdateHandle.getType());
    ColumnMetadata custKeyColumnMetadata = new ColumnMetadata(custkeyHandle.getColumnName(), custkeyHandle.getType());
    ColumnMetadata totalPriceColumnMetadata = new ColumnMetadata(totalpriceHandle.getColumnName(), totalpriceHandle.getType());
    output = symbolAllocator.newSymbol("output", DOUBLE);
    assignments = ImmutableMap.<Symbol, ColumnHandle>builder().put(columnOrderkey, orderkeyHandle).put(columnOrderDate, orderdateHandle).put(columnCustkey, custkeyHandle).put(columnTotalprice, totalpriceHandle).build();
    TpchTableHandle orders = new TpchTableHandle("orders", 1.0);
    ordersTableHandle = new TableHandle(tester().getCurrentConnectorId(), orders, TpchTransactionHandle.INSTANCE, Optional.of(new TpchTableLayoutHandle(orders, TupleDomain.all())));
    baseTableScan = new TableScanNode(newId(), ordersTableHandle, ImmutableList.copyOf(assignments.keySet()), assignments, TupleDomain.all(), Optional.empty(), ReuseExchangeOperator.STRATEGY.REUSE_STRATEGY_DEFAULT, new UUID(0, 0), 0, false);
    QualifiedObjectName baseTableName = QualifiedObjectName.valueOf(baseTableScan.getTable().getFullyQualifiedName());
    baseTableMetadata = new TableMetadata(ordersTableHandle.getCatalogName(), new ConnectorTableMetadata(new SchemaTableName(baseTableName.getSchemaName(), baseTableName.getObjectName()), Arrays.asList(orderKeyColumnMetadata, orderDateColumnMetadata, custKeyColumnMetadata, totalPriceColumnMetadata)));
    columnCountAll = symbolAllocator.newSymbol("count_all", BIGINT);
    columnSumTotalPrice = symbolAllocator.newSymbol("sum_totalprice", DOUBLE);
    columnCountOrderKey = symbolAllocator.newSymbol("count_orderkey", BIGINT);
    columnGroupingBitSet = symbolAllocator.newSymbol("grouping_bit_set", BIGINT);
    cubeColumnCustKey = symbolAllocator.newSymbol("custkey", BIGINT);
    cubeColumnOrderDate = symbolAllocator.newSymbol("orderdate", DATE);
    countAllHandle = new TpchColumnHandle("count_all", BIGINT);
    sumTotalPriceHandle = new TpchColumnHandle("sum_totalprice", DOUBLE);
    countOrderKeyHandle = new TpchColumnHandle("count_orderkey", BIGINT);
    groupingBitSetHandle = new TpchColumnHandle("grouping_bit_set", BIGINT);
    custKeyCubeColumnHandle = new TpchColumnHandle("custkey", BIGINT);
    orderDateCubeColumnHandle = new TpchColumnHandle("orderdate", DATE);
    ordersCubeColumnHandles.put(countAllHandle.getColumnName(), countAllHandle);
    ordersCubeColumnHandles.put(sumTotalPriceHandle.getColumnName(), sumTotalPriceHandle);
    ordersCubeColumnHandles.put(countOrderKeyHandle.getColumnName(), countOrderKeyHandle);
    ordersCubeColumnHandles.put(groupingBitSetHandle.getColumnName(), groupingBitSetHandle);
    ordersCubeColumnHandles.put(custKeyCubeColumnHandle.getColumnName(), custKeyCubeColumnHandle);
    ordersCubeColumnHandles.put(orderDateCubeColumnHandle.getColumnName(), orderDateCubeColumnHandle);
    TpchTableHandle ordersCube = new TpchTableHandle("orders_cube", 1.0);
    ordersCubeHandle = new TableHandle(tester().getCurrentConnectorId(), ordersCube, TpchTransactionHandle.INSTANCE, Optional.of(new TpchTableLayoutHandle(ordersCube, TupleDomain.all())));
    countAllColumnMetadata = new ColumnMetadata(countAllHandle.getColumnName(), countAllHandle.getType());
    sumTotalPriceColumnMetadata = new ColumnMetadata(sumTotalPriceHandle.getColumnName(), sumTotalPriceHandle.getType());
    countOrderKeyColumnMetadata = new ColumnMetadata(countOrderKeyHandle.getColumnName(), countOrderKeyHandle.getType());
    groupingBitSetColumnMetadata = new ColumnMetadata(groupingBitSetHandle.getColumnName(), groupingBitSetHandle.getType());
    custKeyCubeColumnMetadata = new ColumnMetadata(custKeyCubeColumnHandle.getColumnName(), custKeyCubeColumnHandle.getType());
    orderDateCubeColumnMetadata = new ColumnMetadata(orderDateCubeColumnHandle.getColumnName(), orderDateCubeColumnHandle.getType());
    config = new FeaturesConfig();
    config.setEnableStarTreeIndex(true);
    cubeManager = Mockito.mock(CubeManager.class);
    provider = Mockito.mock(CubeProvider.class);
    cubeMetaStore = Mockito.mock(CubeMetaStore.class);
    cubeMetadata = Mockito.mock(CubeMetadata.class);
    ordersTableHandleMatcher = new BaseMatcher<TableHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof TableHandle)) {
                return false;
            }
            TableHandle th = (TableHandle) o;
            return th.getFullyQualifiedName().equals(ordersTableHandle.getFullyQualifiedName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
    ordersCubeHandleMatcher = new BaseMatcher<TableHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof TableHandle)) {
                return false;
            }
            TableHandle th = (TableHandle) o;
            return th.getFullyQualifiedName().equals(ordersCubeHandle.getFullyQualifiedName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
    countAllColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public void describeTo(Description description) {
        }

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(countAllHandle.getColumnName());
        }
    };
    sumTotalPriceColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public void describeTo(Description description) {
        }

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(sumTotalPriceHandle.getColumnName());
        }
    };
    countOrderKeyColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(countOrderKeyHandle.getColumnName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
    groupingBitSetColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(groupingBitSetHandle.getColumnName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
    orderDateCubeColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(orderDateCubeColumnHandle.getColumnName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
    custKeyCubeColumnHandleMatcher = new BaseMatcher<ColumnHandle>() {

        @Override
        public boolean matches(Object o) {
            if (!(o instanceof ColumnHandle)) {
                return false;
            }
            ColumnHandle ch = (ColumnHandle) o;
            return ch.getColumnName().equalsIgnoreCase(custKeyCubeColumnHandle.getColumnName());
        }

        @Override
        public void describeTo(Description description) {
        }
    };
}

Example 15 with PlanSymbolAllocator

use of io.prestosql.sql.planner.PlanSymbolAllocator in project hetu-core by openlookeng.

the class TestStatisticAggregationsDescriptor method createTestDescriptor.

private static StatisticAggregationsDescriptor<Symbol> createTestDescriptor() {
    StatisticAggregationsDescriptor.Builder<Symbol> builder = StatisticAggregationsDescriptor.builder();
    PlanSymbolAllocator planSymbolAllocator = new PlanSymbolAllocator();
    for (String column : COLUMNS) {
        for (ColumnStatisticType type : ColumnStatisticType.values()) {
            builder.addColumnStatistic(new ColumnStatisticMetadata(column, type), testSymbol(planSymbolAllocator));
        }
        builder.addGrouping(column, testSymbol(planSymbolAllocator));
    }
    builder.addTableStatistic(ROW_COUNT, testSymbol(planSymbolAllocator));
    return builder.build();
}