Examples with CreateIndex io.prestosql.sql.tree.CreateIndex used on opensource projects

Example 1 with CreateIndex

use of io.prestosql.sql.tree.CreateIndex in project hetu-core by openlookeng.

the class QueryPlanner method createIndex.

/**
 * CREATE INDEX statements are rewritten as SELECT statements,
 * if the original statement was CREATE INDEX, create the necessary plan nodes
 * to create the index
 */
private PlanBuilder createIndex(PlanBuilder subPlan, Statement originalStatement) {
    if (!(originalStatement instanceof CreateIndex)) {
        return subPlan;
    }
    // rewrite sub queries
    CreateIndex createIndex = (CreateIndex) originalStatement;
    String tableName = MetadataUtil.createQualifiedObjectName(session, originalStatement, createIndex.getTableName()).toString();
    List<String> partitions = new ArrayList<>();
    if (createIndex.getExpression().isPresent()) {
        partitions = HeuristicIndexUtils.extractPartitions(createIndex.getExpression().get());
    }
    Map<String, Type> columnTypes = new HashMap<>();
    for (Field field : analysis.getRootScope().getRelationType().getAllFields()) {
        if (INDEX_SUPPORTED_TYPES.get(createIndex.getIndexType().toLowerCase(Locale.ENGLISH)).stream().noneMatch(supportType -> field.getType().getDisplayName().contains(supportType))) {
            throw new UnsupportedOperationException("Index creation on " + field.getType().getDisplayName() + " column is not supported");
        }
        columnTypes.put(field.getOriginColumnName().get(), field.getType());
    }
    Properties indexProperties = new Properties();
    CreateIndexMetadata.Level indexCreationLevel = CreateIndexMetadata.Level.UNDEFINED;
    indexProperties.setProperty(LEVEL_PROP_KEY, indexCreationLevel.toString());
    boolean autoLoadFound = false;
    for (Property property : createIndex.getProperties()) {
        String key = extractPropertyValue(property.getName());
        String val = extractPropertyValue(property.getValue()).toUpperCase(Locale.ENGLISH);
        if (key.equals(LEVEL_PROP_KEY)) {
            indexCreationLevel = CreateIndexMetadata.Level.valueOf(val);
            continue;
        }
        if (key.equals(AUTOLOAD_PROP_KEY)) {
            autoLoadFound = true;
            String valInLowerCase = val.toLowerCase(Locale.ROOT);
            if (valInLowerCase.equals("true") || valInLowerCase.equals("false")) {
                indexProperties.setProperty(key, valInLowerCase);
            } else {
                throw new IllegalArgumentException("Unrecognized value for key '" + AUTOLOAD_PROP_KEY + "', only 'true' or 'false' are allowed");
            }
            continue;
        }
        indexProperties.setProperty(key, val);
    }
    if (!autoLoadFound) {
        boolean defaultAutoloadProp = PropertyService.getBooleanProperty(HetuConstant.FILTER_CACHE_AUTOLOAD_DEFAULT);
        indexProperties.setProperty(AUTOLOAD_PROP_KEY, String.valueOf(defaultAutoloadProp));
    }
    return subPlan.withNewRoot(new CreateIndexNode(idAllocator.getNextId(), ExchangeNode.gatheringExchange(idAllocator.getNextId(), ExchangeNode.Scope.REMOTE, subPlan.getRoot()), new CreateIndexMetadata(createIndex.getIndexName().toString(), tableName, createIndex.getIndexType(), 0L, createIndex.getColumnAliases().stream().map(identifier -> new Pair<>(identifier.toString(), columnTypes.get(identifier.toString().toLowerCase(Locale.ROOT)))).collect(Collectors.toList()), partitions, indexProperties, session.getUser(), indexCreationLevel)));
}

Example 2 with CreateIndex

use of io.prestosql.sql.tree.CreateIndex in project hetu-core by openlookeng.

the class StatementAnalyzer method validateCreateIndex.

private void validateCreateIndex(Table table, Optional<Scope> scope) {
    CreateIndex createIndex = (CreateIndex) analysis.getOriginalStatement();
    QualifiedObjectName tableFullName = createQualifiedObjectName(session, createIndex, createIndex.getTableName());
    accessControl.checkCanCreateIndex(session.getRequiredTransactionId(), session.getIdentity(), tableFullName);
    String tableName = tableFullName.toString();
    // check whether catalog support create index
    if (!metadata.isHeuristicIndexSupported(session, tableFullName)) {
        throw new SemanticException(NOT_SUPPORTED, createIndex, "CREATE INDEX is not supported in catalog '%s'", tableFullName.getCatalogName());
    }
    List<String> partitions = new ArrayList<>();
    String partitionColumn = null;
    if (createIndex.getExpression().isPresent()) {
        partitions = HeuristicIndexUtils.extractPartitions(createIndex.getExpression().get());
        // check partition name validate, create index …… where pt_d = xxx;
        // pt_d must be partition column
        Set<String> partitionColumns = partitions.stream().map(k -> k.substring(0, k.indexOf("="))).collect(Collectors.toSet());
        if (partitionColumns.size() > 1) {
            // currently only support one partition column
            throw new IllegalArgumentException("Heuristic index only supports predicates on one column");
        }
        // The only entry in set should be the only partition column name
        partitionColumn = partitionColumns.iterator().next();
    }
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableFullName);
    if (tableHandle.isPresent()) {
        if (!tableHandle.get().getConnectorHandle().isHeuristicIndexSupported()) {
            throw new SemanticException(NOT_SUPPORTED, table, "Catalog supported, but table storage format is not supported by heuristic index");
        }
        TableMetadata tableMetadata = metadata.getTableMetadata(session, tableHandle.get());
        List<String> availableColumns = tableMetadata.getColumns().stream().map(ColumnMetadata::getName).collect(Collectors.toList());
        for (Identifier column : createIndex.getColumnAliases()) {
            if (!availableColumns.contains(column.getValue().toLowerCase(Locale.ROOT))) {
                throw new SemanticException(MISSING_ATTRIBUTE, table, "Column '%s' cannot be resolved", column.getValue());
            }
        }
        if (partitionColumn != null && !tableHandle.get().getConnectorHandle().isPartitionColumn(partitionColumn)) {
            throw new SemanticException(NOT_SUPPORTED, table, "Heuristic index creation is only supported for predicates on partition columns");
        }
    } else {
        throw new SemanticException(MISSING_ATTRIBUTE, table, "Table '%s' is invalid", tableFullName);
    }
    List<Pair<String, Type>> indexColumns = new LinkedList<>();
    for (Identifier i : createIndex.getColumnAliases()) {
        indexColumns.add(new Pair<>(i.toString(), UNKNOWN));
    }
    // For now, creating index for multiple columns is not supported
    if (indexColumns.size() > 1) {
        throw new SemanticException(NOT_SUPPORTED, table, "Multi-column indexes are currently not supported");
    }
    try {
        // Use this place holder to check the existence of index and lock the place
        Properties properties = new Properties();
        properties.setProperty(INPROGRESS_PROPERTY_KEY, "TRUE");
        CreateIndexMetadata placeHolder = new CreateIndexMetadata(createIndex.getIndexName().toString(), tableName, createIndex.getIndexType(), 0L, indexColumns, partitions, properties, session.getUser(), UNDEFINED);
        synchronized (StatementAnalyzer.class) {
            IndexClient.RecordStatus recordStatus = heuristicIndexerManager.getIndexClient().lookUpIndexRecord(placeHolder);
            switch(recordStatus) {
                case SAME_NAME:
                    throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index '%s' already exists", createIndex.getIndexName().toString());
                case SAME_CONTENT:
                    throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index with same (table,column,indexType) already exists");
                case SAME_INDEX_PART_CONFLICT:
                    throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index with same (table,column,indexType) already exists and partition(s) contain conflicts");
                case IN_PROGRESS_SAME_NAME:
                    throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index '%s' is being created by another user. Check running queries for details. If there is no running query for this index, " + "the index may be in an unexpected error state and should be dropped using 'DROP INDEX %s'", createIndex.getIndexName().toString(), createIndex.getIndexName().toString());
                case IN_PROGRESS_SAME_CONTENT:
                    throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index with same (table,column,indexType) is being created by another user. Check running queries for details. " + "If there is no running query for this index, the index may be in an unexpected error state and should be dropped using 'DROP INDEX'");
                case IN_PROGRESS_SAME_INDEX_PART_CONFLICT:
                    if (partitions.isEmpty()) {
                        throw new SemanticException(INDEX_ALREADY_EXISTS, createIndex, "Index with same (table,column,indexType) is being created by another user. Check running queries for details. " + "If there is no running query for this index, the index may be in an unexpected error state and should be dropped using 'DROP INDEX %s'", createIndex.getIndexName().toString());
                    }
                // allow different queries to run with explicitly same partitions
                case SAME_INDEX_PART_CAN_MERGE:
                case IN_PROGRESS_SAME_INDEX_PART_CAN_MERGE:
                    break;
                case NOT_FOUND:
                    heuristicIndexerManager.getIndexClient().addIndexRecord(placeHolder);
            }
        }
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

Example 3 with CreateIndex

use of io.prestosql.sql.tree.CreateIndex 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;
}