Examples with Metadata io.prestosql.metadata.Metadata used on opensource projects

Example 21 with Metadata

use of io.prestosql.metadata.Metadata in project hetu-core by openlookeng.

the class BenchmarkEqualsOperator method setup.

@Setup
public void setup() {
    Metadata metadata = createTestMetadataManager();
    ExpressionCompiler expressionCompiler = new ExpressionCompiler(metadata, new PageFunctionCompiler(metadata, 0));
    RowExpression projection = generateComplexComparisonProjection(FIELDS_COUNT, COMPARISONS_COUNT);
    compiledProcessor = expressionCompiler.compilePageProcessor(Optional.empty(), ImmutableList.of(projection)).get();
}

Example 22 with Metadata

use of io.prestosql.metadata.Metadata in project hetu-core by openlookeng.

the class MemoryLocalQueryRunner method dropTable.

public void dropTable(String tableName) {
    Session session = localQueryRunner.getDefaultSession();
    Metadata metadata = localQueryRunner.getMetadata();
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, QualifiedObjectName.valueOf(tableName));
    assertTrue(tableHandle.isPresent(), "Table " + tableName + " does not exist");
    metadata.dropTable(session, tableHandle.get());
}

Example 23 with Metadata

use of io.prestosql.metadata.Metadata in project hetu-core by openlookeng.

the class PageFunctionCompiler method generateFilterMethod.

private MethodDefinition generateFilterMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, CachedInstanceBinder cachedInstanceBinder, Map<LambdaDefinitionExpression, CompiledLambda> compiledLambdaMap, RowExpression filter) {
    Parameter session = arg("session", ConnectorSession.class);
    Parameter page = arg("page", Page.class);
    Parameter position = arg("position", int.class);
    MethodDefinition method = classDefinition.declareMethod(a(PUBLIC), "filter", type(boolean.class), ImmutableList.<Parameter>builder().add(session).add(page).add(position).build());
    method.comment("Filter: %s", filter.toString());
    Scope scope = method.getScope();
    BytecodeBlock body = method.getBody();
    declareBlockVariables(filter, page, scope, body);
    Variable wasNullVariable = scope.declareVariable("wasNull", body, constantFalse());
    RowExpressionCompiler compiler = new RowExpressionCompiler(callSiteBinder, cachedInstanceBinder, fieldReferenceCompiler(callSiteBinder), metadata, compiledLambdaMap, new ClassContext(classDefinition, scope, (newFilterName, rowExpressionCompiler, generator, subFilter, callerScope) -> {
        MethodDefinition newMethod = classDefinition.declareMethod(a(PUBLIC), newFilterName, type(boolean.class), ImmutableList.<Parameter>builder().add(session).add(page).add(position).build());
        newMethod.comment("Filter: %s", subFilter.toString());
        Scope innerScope = newMethod.getScope();
        BytecodeBlock innerBody = newMethod.getBody();
        declareBlockVariables(subFilter, page, innerScope, innerBody);
        Variable wasNullVariable1 = innerScope.declareVariable("wasNull", innerBody, constantFalse());
        Variable result1 = innerScope.declareVariable(boolean.class, "result");
        BytecodeGeneratorContext generatorContext = new BytecodeGeneratorContext(rowExpressionCompiler, innerScope, callSiteBinder, cachedInstanceBinder, metadata.getFunctionAndTypeManager());
        innerBody.append(generator.generateExpression(null, generatorContext, subFilter.getType(), subFilter.getArguments())).putVariable(result1).append(and(not(wasNullVariable1), result1).ret());
        /* Call the sub-method: Important use caller scope to pass parameters to new function */
        BytecodeBlock block = new BytecodeBlock().comment("INVOKE").setDescription("INVOKE " + newFilterName);
        block.append(callerScope.getThis()).getVariable(session).getVariable(page).getVariable(position).invokeVirtual(classDefinition.getType(), newFilterName, type(boolean.class), type(ConnectorSession.class), type(Page.class), type(int.class));
        return block;
    }));
    Variable result = scope.declareVariable(boolean.class, "result");
    body.append(compiler.compile(filter, scope)).putVariable(result).append(and(not(wasNullVariable), result).ret());
    return method;
}

Example 24 with Metadata

use of io.prestosql.metadata.Metadata in project hetu-core by openlookeng.

the class ExtractSpatialJoins method loadKdbTree.

private static KdbTree loadKdbTree(String tableName, Session session, Metadata metadata, SplitManager splitManager, PageSourceManager pageSourceManager, PlanNodeId nodeId) {
    QualifiedObjectName name = toQualifiedObjectName(tableName, session.getCatalog().get(), session.getSchema().get());
    TableHandle tableHandle = metadata.getTableHandle(session, name).orElseThrow(() -> new PrestoException(INVALID_SPATIAL_PARTITIONING, format("Table not found: %s", name)));
    Map<String, ColumnHandle> columnHandles = metadata.getColumnHandles(session, tableHandle);
    List<ColumnHandle> visibleColumnHandles = columnHandles.values().stream().filter(handle -> !metadata.getColumnMetadata(session, tableHandle, handle).isHidden()).collect(toImmutableList());
    checkSpatialPartitioningTable(visibleColumnHandles.size() == 1, "Expected single column for table %s, but found %s columns", name, columnHandles.size());
    ColumnHandle kdbTreeColumn = Iterables.getOnlyElement(visibleColumnHandles);
    Optional<KdbTree> kdbTree = Optional.empty();
    try (SplitSource splitSource = splitManager.getSplits(session, tableHandle, UNGROUPED_SCHEDULING, null, Optional.empty(), Collections.emptyMap(), ImmutableSet.of(), false, nodeId)) {
        while (!Thread.currentThread().isInterrupted()) {
            SplitBatch splitBatch = getFutureValue(splitSource.getNextBatch(NOT_PARTITIONED, Lifespan.taskWide(), 1000));
            List<Split> splits = splitBatch.getSplits();
            for (Split split : splits) {
                try (ConnectorPageSource pageSource = pageSourceManager.createPageSource(session, split, tableHandle, ImmutableList.of(kdbTreeColumn), Optional.empty())) {
                    do {
                        getFutureValue(pageSource.isBlocked());
                        Page page = pageSource.getNextPage();
                        if (page != null && page.getPositionCount() > 0) {
                            checkSpatialPartitioningTable(!kdbTree.isPresent(), "Expected exactly one row for table %s, but found more", name);
                            checkSpatialPartitioningTable(page.getPositionCount() == 1, "Expected exactly one row for table %s, but found %s rows", name, page.getPositionCount());
                            String kdbTreeJson = VARCHAR.getSlice(page.getBlock(0), 0).toStringUtf8();
                            try {
                                kdbTree = Optional.of(KdbTreeUtils.fromJson(kdbTreeJson));
                            } catch (IllegalArgumentException e) {
                                checkSpatialPartitioningTable(false, "Invalid JSON string for KDB tree: %s", e.getMessage());
                            }
                        }
                    } while (!pageSource.isFinished());
                } catch (IOException e) {
                    throw new UncheckedIOException(e);
                }
            }
            if (splitBatch.isLastBatch()) {
                break;
            }
        }
    }
    checkSpatialPartitioningTable(kdbTree.isPresent(), "Expected exactly one row for table %s, but got none", name);
    return kdbTree.get();
}

Example 25 with Metadata

use of io.prestosql.metadata.Metadata in project hetu-core by openlookeng.

the class ExtractSpatialJoins method tryCreateSpatialJoin.

private static Result tryCreateSpatialJoin(Context context, JoinNode joinNode, RowExpression filter, PlanNodeId nodeId, List<Symbol> outputSymbols, CallExpression spatialComparison, Metadata metadata, SplitManager splitManager, PageSourceManager pageSourceManager, TypeAnalyzer typeAnalyzer) {
    FunctionMetadata spatialComparisonMetadata = metadata.getFunctionAndTypeManager().getFunctionMetadata(spatialComparison.getFunctionHandle());
    checkArgument(spatialComparison.getArguments().size() == 2 && spatialComparisonMetadata.getOperatorType().isPresent());
    PlanNode leftNode = joinNode.getLeft();
    PlanNode rightNode = joinNode.getRight();
    List<Symbol> leftSymbols = leftNode.getOutputSymbols();
    List<Symbol> rightSymbols = rightNode.getOutputSymbols();
    RowExpression radius;
    Optional<Symbol> newRadiusSymbol;
    CallExpression newComparison;
    OperatorType operatorType = spatialComparisonMetadata.getOperatorType().get();
    if (operatorType.equals(OperatorType.LESS_THAN) || operatorType.equals(OperatorType.LESS_THAN_OR_EQUAL)) {
        // ST_Distance(a, b) <= r
        radius = spatialComparison.getArguments().get(1);
        Set<Symbol> radiusSymbols = extractUnique(radius);
        if (radiusSymbols.isEmpty() || (rightSymbols.containsAll(radiusSymbols) && containsNone(leftSymbols, radiusSymbols))) {
            newRadiusSymbol = newRadiusSymbol(context, radius);
            newComparison = new CallExpression(spatialComparison.getDisplayName(), spatialComparison.getFunctionHandle(), spatialComparison.getType(), ImmutableList.of(spatialComparison.getArguments().get(0), mapToExpression(newRadiusSymbol, radius, context)), Optional.empty());
        } else {
            return Result.empty();
        }
    } else {
        // r >= ST_Distance(a, b)
        radius = spatialComparison.getArguments().get(0);
        Set<Symbol> radiusSymbols = extractUnique(radius);
        if (radiusSymbols.isEmpty() || (rightSymbols.containsAll(radiusSymbols) && containsNone(leftSymbols, radiusSymbols))) {
            OperatorType newOperatorType = SpatialJoinUtils.flip(operatorType);
            FunctionHandle flippedHandle = getFlippedFunctionHandle(spatialComparison, metadata.getFunctionAndTypeManager());
            newRadiusSymbol = newRadiusSymbol(context, radius);
            newComparison = new CallExpression(newOperatorType.name(), flippedHandle, spatialComparison.getType(), ImmutableList.of(spatialComparison.getArguments().get(1), mapToExpression(newRadiusSymbol, radius, context)), Optional.empty());
        } else {
            return Result.empty();
        }
    }
    RowExpression newFilter = replaceExpression(filter, ImmutableMap.of(spatialComparison, newComparison));
    PlanNode newRightNode = newRadiusSymbol.map(symbol -> addProjection(context, rightNode, symbol, radius)).orElse(rightNode);
    JoinNode newJoinNode = new JoinNode(joinNode.getId(), joinNode.getType(), leftNode, newRightNode, joinNode.getCriteria(), joinNode.getOutputSymbols(), Optional.of(newFilter), joinNode.getLeftHashSymbol(), joinNode.getRightHashSymbol(), joinNode.getDistributionType(), joinNode.isSpillable(), joinNode.getDynamicFilters());
    return tryCreateSpatialJoin(context, newJoinNode, newFilter, nodeId, outputSymbols, (CallExpression) newComparison.getArguments().get(0), Optional.of(newComparison.getArguments().get(1)), metadata, splitManager, pageSourceManager, typeAnalyzer);
}