Examples with PropertyMetadata io.prestosql.spi.session.PropertyMetadata used on opensource projects

Example 1 with PropertyMetadata

use of io.prestosql.spi.session.PropertyMetadata in project hetu-core by openlookeng.

the class AbstractPropertiesSystemTable method cursor.

@Override
public final RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint) {
    TransactionId transactionId = ((GlobalSystemTransactionHandle) transactionHandle).getTransactionId();
    InMemoryRecordSet.Builder table = InMemoryRecordSet.builder(tableMetadata);
    Map<CatalogName, Map<String, PropertyMetadata<?>>> connectorProperties = propertySupplier.get();
    for (Entry<String, CatalogName> entry : new TreeMap<>(transactionManager.getCatalogNames(transactionId)).entrySet()) {
        String catalog = entry.getKey();
        Map<String, PropertyMetadata<?>> properties = new TreeMap<>(connectorProperties.getOrDefault(entry.getValue(), ImmutableMap.of()));
        for (PropertyMetadata<?> propertyMetadata : properties.values()) {
            table.addRow(catalog, propertyMetadata.getName(), firstNonNull(propertyMetadata.getDefaultValue(), "").toString(), propertyMetadata.getSqlType().toString(), propertyMetadata.getDescription());
        }
    }
    return table.build().cursor();
}

Example 2 with PropertyMetadata

use of io.prestosql.spi.session.PropertyMetadata in project hetu-core by openlookeng.

the class AbstractPropertyManager method getProperties.

public final Map<String, Object> getProperties(CatalogName catalogName, // only use this for error messages
String catalog, Map<String, Expression> sqlPropertyValues, Session session, Metadata metadata, List<Expression> parameters) {
    Map<String, PropertyMetadata<?>> supportedProperties = connectorProperties.get(catalogName);
    if (supportedProperties == null) {
        throw new PrestoException(NOT_FOUND, "Catalog not found: " + catalog);
    }
    ImmutableMap.Builder<String, Object> properties = ImmutableMap.builder();
    // Fill in user-specified properties
    for (Map.Entry<String, Expression> sqlProperty : sqlPropertyValues.entrySet()) {
        String propertyName = sqlProperty.getKey().toLowerCase(ENGLISH);
        PropertyMetadata<?> property = supportedProperties.get(propertyName);
        if (property == null) {
            throw new PrestoException(propertyError, format("Catalog '%s' does not support %s property '%s'", catalog, propertyType, propertyName));
        }
        Object sqlObjectValue;
        try {
            sqlObjectValue = evaluatePropertyValue(sqlProperty.getValue(), property.getSqlType(), session, metadata, parameters);
        } catch (SemanticException e) {
            throw new PrestoException(propertyError, format("Invalid value for %s property '%s': Cannot convert [%s] to %s", propertyType, property.getName(), sqlProperty.getValue(), property.getSqlType()), e);
        }
        Object value;
        try {
            value = property.decode(sqlObjectValue);
        } catch (Exception e) {
            throw new PrestoException(propertyError, format("Unable to set %s property '%s' to [%s]: %s", propertyType, property.getName(), sqlProperty.getValue(), e.getMessage()), e);
        }
        properties.put(property.getName(), value);
    }
    Map<String, Object> userSpecifiedProperties = properties.build();
    // Fill in the remaining properties with non-null defaults
    for (PropertyMetadata<?> propertyMetadata : supportedProperties.values()) {
        if (!userSpecifiedProperties.containsKey(propertyMetadata.getName())) {
            Object value = propertyMetadata.getDefaultValue();
            if (value != null) {
                properties.put(propertyMetadata.getName(), value);
            }
        }
    }
    return properties.build();
}

Example 3 with PropertyMetadata

use of io.prestosql.spi.session.PropertyMetadata in project hetu-core by openlookeng.

the class CachedSqlQueryExecution method createPlan.

@Override
protected Plan createPlan(Analysis analysis, Session session, List<PlanOptimizer> planOptimizers, PlanNodeIdAllocator idAllocator, Metadata metadata, TypeAnalyzer typeAnalyzer, StatsCalculator statsCalculator, CostCalculator costCalculator, WarningCollector warningCollector) {
    Statement statement = analysis.getStatement();
    // Get relevant Session properties which may affect the resulting execution plan
    // Property to property value mapping
    Map<String, Object> systemSessionProperties = new HashMap<>();
    SystemSessionProperties sessionProperties = new SystemSessionProperties();
    for (PropertyMetadata<?> property : sessionProperties.getSessionProperties()) {
        systemSessionProperties.put(property.getName(), session.getSystemProperty(property.getName(), property.getJavaType()));
    }
    // if the original statement before rewriting is CreateIndex, set session to let connector know that pageMetadata should be enabled
    if (analysis.getOriginalStatement() instanceof CreateIndex || analysis.getOriginalStatement() instanceof UpdateIndex) {
        session.setPageMetadataEnabled(true);
    }
    // build list of fully qualified table names
    List<String> tableNames = new ArrayList<>();
    Map<String, TableStatistics> tableStatistics = new HashMap<>();
    // Get column name to column type to detect column type changes between queries more easily
    Map<String, Type> columnTypes = new HashMap<>();
    // Cacheable conditions:
    // 1. Caching must be enabled globally
    // 2. Caching must be enabled in the session
    // 3. There must not be any parameters in the query
    // TODO: remove requirement for empty params and implement parameter rewrite
    // 4. Methods in ConnectorTableHandle and ConnectorMetadata must be
    // overwritten to allow access to fully qualified table names and column names
    // 5. Statement must be an instance of Query and not contain CurrentX functions
    boolean cacheable = this.cache.isPresent() && isExecutionPlanCacheEnabled(session) && analysis.getParameters().isEmpty() && validateAndExtractTableAndColumns(analysis, metadata, session, tableNames, tableStatistics, columnTypes) && isCacheable(statement) && // create index and update index should not be cached
    (!(analysis.getOriginalStatement() instanceof CreateIndex || analysis.getOriginalStatement() instanceof UpdateIndex));
    cacheable = cacheable && !tableNames.isEmpty();
    if (!cacheable) {
        return super.createPlan(analysis, session, planOptimizers, idAllocator, metadata, typeAnalyzer, statsCalculator, costCalculator, warningCollector);
    }
    List<String> optimizers = new ArrayList<>();
    // build list of enabled optimizers and rules for cache key
    for (PlanOptimizer planOptimizer : planOptimizers) {
        if (planOptimizer instanceof IterativeOptimizer) {
            IterativeOptimizer iterativeOptimizer = (IterativeOptimizer) planOptimizer;
            Set<Rule<?>> rules = iterativeOptimizer.getRules();
            for (Rule rule : rules) {
                if (OptimizerUtils.isEnabledRule(rule, session)) {
                    optimizers.add(rule.getClass().getSimpleName());
                }
            }
        } else {
            if (OptimizerUtils.isEnabledLegacy(planOptimizer, session)) {
                optimizers.add(planOptimizer.getClass().getSimpleName());
            }
        }
    }
    Set<String> connectors = tableNames.stream().map(table -> table.substring(0, table.indexOf("."))).collect(Collectors.toSet());
    connectors.stream().forEach(connector -> {
        for (Map.Entry<String, String> property : session.getConnectorProperties(new CatalogName(connector)).entrySet()) {
            systemSessionProperties.put(connector + "." + property.getKey(), property.getValue());
        }
    });
    Plan plan;
    // TODO: Traverse the statement to build the key then combine tables/optimizers.. etc
    int key = SqlQueryExecutionCacheKeyGenerator.buildKey((Query) statement, tableNames, optimizers, columnTypes, session.getTimeZoneKey(), systemSessionProperties);
    CachedSqlQueryExecutionPlan cachedPlan = this.cache.get().getIfPresent(key);
    HetuLogicalPlanner logicalPlanner = new HetuLogicalPlanner(session, planOptimizers, idAllocator, metadata, typeAnalyzer, statsCalculator, costCalculator, warningCollector);
    PlanNode root;
    plan = cachedPlan != null ? cachedPlan.getPlan() : null;
    // that rely on system time
    if (plan != null && cachedPlan.getTimeZoneKey().equals(session.getTimeZoneKey()) && cachedPlan.getStatement().equals(statement) && session.getTransactionId().isPresent() && cachedPlan.getIdentity().getUser().equals(session.getIdentity().getUser())) {
        // TODO: traverse the statement and accept partial match
        root = plan.getRoot();
        boolean isValidCachePlan = tablesMatch(root, analysis.getTables());
        try {
            if (!isEqualBasicStatistics(cachedPlan.getTableStatistics(), tableStatistics, tableNames) || !isValidCachePlan) {
                for (TableHandle tableHandle : analysis.getTables()) {
                    tableStatistics.replace(tableHandle.getFullyQualifiedName(), metadata.getTableStatistics(session, tableHandle, Constraint.alwaysTrue(), true));
                }
                if (!cachedPlan.getTableStatistics().equals(tableStatistics) || !isValidCachePlan) {
                    // Table have changed, therfore the cached plan may no longer be applicable
                    throw new NoSuchElementException();
                }
            }
            // TableScanNode may contain the old transaction id.
            // The following logic rewrites the logical plan by replacing the TableScanNode with a new TableScanNode which
            // contains the new transaction id from session.
            root = SimplePlanRewriter.rewriteWith(new TableHandleRewriter(session, analysis, metadata), root);
        } catch (NoSuchElementException e) {
            // Cached plan is outdated
            // invalidate cache
            this.cache.get().invalidateAll();
            // Build a new plan
            plan = createAndCachePlan(key, logicalPlanner, statement, tableNames, tableStatistics, optimizers, analysis, columnTypes, systemSessionProperties);
            root = plan.getRoot();
        }
    } else {
        // Build a new plan
        for (TableHandle tableHandle : analysis.getTables()) {
            tableStatistics.replace(tableHandle.getFullyQualifiedName(), metadata.getTableStatistics(session, tableHandle, Constraint.alwaysTrue(), true));
        }
        plan = createAndCachePlan(key, logicalPlanner, statement, tableNames, tableStatistics, optimizers, analysis, columnTypes, systemSessionProperties);
        root = plan.getRoot();
    }
    // BeginTableWrite optimizer must be run at the end as the last optimization
    // due to a hack Hetu community added which also serves to updates
    // metadata in the nodes
    root = this.beginTableWrite.optimize(root, session, null, null, null, null);
    plan = update(plan, root);
    return plan;
}