Examples with DrillTable org.apache.drill.exec.planner.logical.DrillTable used on opensource projects

Example 6 with DrillTable

use of org.apache.drill.exec.planner.logical.DrillTable in project drill by apache.

the class AbstractSchema method getFunctions.

/**
 * For the given table names returns list of acceptable table functions
 * which are common for all Drill schemas. When overriding this method,
 * parent functions must be included first to be evaluated first.
 * If not included, parent functions won't be taken into account when creating table instance.
 *
 * @param name table name
 * @return list of table functions
 */
@Override
public Collection<Function> getFunctions(String name) {
    List<TableParamDef> parameters = getFunctionParameters();
    TableSignature signature = TableSignature.of(name, parameters);
    WithOptionsTableMacro function = new WithOptionsTableMacro(signature, arguments -> {
        Table table = getTable(name);
        if (table instanceof DrillTable) {
            return applyFunctionParameters((DrillTable) table, parameters, arguments);
        } else if (table == null) {
            return null;
        }
        throw new DrillRuntimeException(String.format("Table [%s] is not of Drill table instance. " + "Given instance is of [%s].", name, table.getClass().getName()));
    });
    return Collections.singletonList(function);
}

Example 7 with DrillTable

use of org.apache.drill.exec.planner.logical.DrillTable in project drill by apache.

the class MapRDBFormatMatcher method isReadableIndex.

/**
 * Get an instance of DrillTable for a particular native secondary index
 * @param fs
 * @param selection
 * @param fsPlugin
 * @param storageEngineName
 * @param userName
 * @param secondaryIndexDesc
 * @return
 * @throws IOException
 */
public DrillTable isReadableIndex(DrillFileSystem fs, FileSelection selection, FileSystemPlugin fsPlugin, String storageEngineName, String userName, IndexDescriptor secondaryIndexDesc) throws IOException {
    FileStatus status = selection.getFirstPath(fs);
    if (!isFileReadable(fs, status)) {
        return null;
    }
    MapRDBFormatPlugin fp = (MapRDBFormatPlugin) getFormatPlugin();
    DrillTable dt = new DynamicDrillTable(fsPlugin, storageEngineName, userName, new FormatSelection(fp.getConfig(), selection));
    // TODO:  Create groupScan using index descriptor
    dt.setGroupScan(fp.getGroupScan(userName, selection, null, /* columns */
    (IndexDesc) ((MapRDBIndexDescriptor) secondaryIndexDesc).getOriginalDesc(), null));
    return dt;
}

Example 8 with DrillTable

use of org.apache.drill.exec.planner.logical.DrillTable in project drill by apache.

the class FindHardDistributionScans method visit.

@Override
public RelNode visit(TableScan scan) {
    DrillTable unwrap;
    unwrap = scan.getTable().unwrap(DrillTable.class);
    if (unwrap == null) {
        DrillTranslatableTable drillTranslatableTable = scan.getTable().unwrap(DrillTranslatableTable.class);
        // Therefore DistributionAffinity type cannot be determined and single mode is rejected.
        if (drillTranslatableTable == null) {
            // it rejects single mode.
            contains = true;
            return scan;
        }
        unwrap = drillTranslatableTable.getDrillTable();
    }
    try {
        if (unwrap.getGroupScan().getDistributionAffinity() == DistributionAffinity.HARD) {
            contains = true;
        }
    } catch (final IOException e) {
        throw new DrillRuntimeException("Failed to get GroupScan from table.");
    }
    return scan;
}

Example 9 with DrillTable

use of org.apache.drill.exec.planner.logical.DrillTable in project drill by apache.

the class MetastoreAnalyzeTableHandler method convertToDrel.

/**
 * Converts to Drill logical plan
 */
private DrillRel convertToDrel(RelNode relNode, SqlMetastoreAnalyzeTable sqlAnalyzeTable, DrillTableInfo drillTableInfo) throws ForemanSetupException, IOException {
    RelBuilder relBuilder = LOGICAL_BUILDER.create(relNode.getCluster(), null);
    DrillTable table = drillTableInfo.drillTable();
    AnalyzeInfoProvider analyzeInfoProvider = table.getGroupScan().getAnalyzeInfoProvider();
    List<String> schemaPath = drillTableInfo.schemaPath();
    String pluginName = schemaPath.get(0);
    String workspaceName = Strings.join(schemaPath.subList(1, schemaPath.size()), AbstractSchema.SCHEMA_SEPARATOR);
    String tableName = drillTableInfo.tableName();
    TableInfo tableInfo = TableInfo.builder().name(tableName).owner(table.getUserName()).type(analyzeInfoProvider.getTableTypeName()).storagePlugin(pluginName).workspace(workspaceName).build();
    ColumnNamesOptions columnNamesOptions = new ColumnNamesOptions(context.getOptions());
    List<String> segmentColumns = analyzeInfoProvider.getSegmentColumns(table, columnNamesOptions).stream().map(SchemaPath::getRootSegmentPath).collect(Collectors.toList());
    List<NamedExpression> segmentExpressions = segmentColumns.stream().map(partitionName -> new NamedExpression(SchemaPath.getSimplePath(partitionName), FieldReference.getWithQuotedRef(partitionName))).collect(Collectors.toList());
    List<MetadataInfo> rowGroupsInfo = Collections.emptyList();
    List<MetadataInfo> filesInfo = Collections.emptyList();
    Multimap<Integer, MetadataInfo> segments = ArrayListMultimap.create();
    BasicTablesRequests basicRequests;
    try {
        basicRequests = context.getMetastoreRegistry().get().tables().basicRequests();
    } catch (MetastoreException e) {
        logger.error("Error when obtaining Metastore instance for table {}", tableName, e);
        DrillRel convertedRelNode = convertToRawDrel(relBuilder.values(new String[] { MetastoreAnalyzeConstants.OK_FIELD_NAME, MetastoreAnalyzeConstants.SUMMARY_FIELD_NAME }, false, e.getMessage()).build());
        return new DrillScreenRel(convertedRelNode.getCluster(), convertedRelNode.getTraitSet(), convertedRelNode);
    }
    MetadataType metadataLevel = getMetadataType(sqlAnalyzeTable);
    List<SchemaPath> interestingColumns = sqlAnalyzeTable.getFieldNames();
    MetastoreTableInfo metastoreTableInfo = basicRequests.metastoreTableInfo(tableInfo);
    List<MetadataInfo> allMetaToHandle = null;
    List<MetadataInfo> metadataToRemove = new ArrayList<>();
    // whether incremental analyze may be produced
    if (metastoreTableInfo.isExists()) {
        RelNode finalRelNode = relNode;
        CheckedSupplier<TableScan, SqlUnsupportedException> tableScanSupplier = () -> DrillRelOptUtil.findScan(convertToDrel(finalRelNode.getInput(0)));
        MetadataInfoCollector metadataInfoCollector = analyzeInfoProvider.getMetadataInfoCollector(basicRequests, tableInfo, (FormatSelection) table.getSelection(), context.getPlannerSettings(), tableScanSupplier, interestingColumns, metadataLevel, segmentColumns.size());
        if (!metadataInfoCollector.isOutdated()) {
            DrillRel convertedRelNode = convertToRawDrel(relBuilder.values(new String[] { MetastoreAnalyzeConstants.OK_FIELD_NAME, MetastoreAnalyzeConstants.SUMMARY_FIELD_NAME }, false, "Table metadata is up to date, analyze wasn't performed.").build());
            return new DrillScreenRel(convertedRelNode.getCluster(), convertedRelNode.getTraitSet(), convertedRelNode);
        }
        // updates scan to read updated / new files, pass removed files into metadata handler
        relNode = relNode.copy(relNode.getTraitSet(), Collections.singletonList(metadataInfoCollector.getPrunedScan()));
        filesInfo = metadataInfoCollector.getFilesInfo();
        segments = metadataInfoCollector.getSegmentsInfo();
        rowGroupsInfo = metadataInfoCollector.getRowGroupsInfo();
        allMetaToHandle = metadataInfoCollector.getAllMetaToHandle();
        metadataToRemove = metadataInfoCollector.getMetadataToRemove();
    }
    // Step 2: constructs plan for producing analyze
    DrillRel convertedRelNode = convertToRawDrel(relNode);
    boolean createNewAggregations = true;
    // List of columns for which statistics should be collected: interesting columns + segment columns
    List<SchemaPath> statisticsColumns = interestingColumns == null ? null : new ArrayList<>(interestingColumns);
    if (statisticsColumns != null) {
        segmentColumns.stream().map(SchemaPath::getSimplePath).forEach(statisticsColumns::add);
    }
    SchemaPath locationField = analyzeInfoProvider.getLocationField(columnNamesOptions);
    if (analyzeInfoProvider.supportsMetadataType(MetadataType.ROW_GROUP) && metadataLevel.includes(MetadataType.ROW_GROUP)) {
        MetadataHandlerContext handlerContext = MetadataHandlerContext.builder().tableInfo(tableInfo).metadataToHandle(rowGroupsInfo).metadataType(MetadataType.ROW_GROUP).depthLevel(segmentExpressions.size()).segmentColumns(segmentColumns).build();
        convertedRelNode = getRowGroupAggRelNode(segmentExpressions, convertedRelNode, createNewAggregations, statisticsColumns, handlerContext);
        createNewAggregations = false;
        locationField = SchemaPath.getSimplePath(MetastoreAnalyzeConstants.LOCATION_FIELD);
    }
    if (analyzeInfoProvider.supportsMetadataType(MetadataType.FILE) && metadataLevel.includes(MetadataType.FILE)) {
        MetadataHandlerContext handlerContext = MetadataHandlerContext.builder().tableInfo(tableInfo).metadataToHandle(filesInfo).metadataType(MetadataType.FILE).depthLevel(segmentExpressions.size()).segmentColumns(segmentColumns).build();
        convertedRelNode = getFileAggRelNode(segmentExpressions, convertedRelNode, createNewAggregations, statisticsColumns, locationField, handlerContext);
        locationField = SchemaPath.getSimplePath(MetastoreAnalyzeConstants.LOCATION_FIELD);
        createNewAggregations = false;
    }
    if (analyzeInfoProvider.supportsMetadataType(MetadataType.SEGMENT) && metadataLevel.includes(MetadataType.SEGMENT)) {
        for (int i = segmentExpressions.size(); i > 0; i--) {
            MetadataHandlerContext handlerContext = MetadataHandlerContext.builder().tableInfo(tableInfo).metadataToHandle(new ArrayList<>(segments.get(i - 1))).metadataType(MetadataType.SEGMENT).depthLevel(i).segmentColumns(segmentColumns.subList(0, i)).build();
            convertedRelNode = getSegmentAggRelNode(segmentExpressions, convertedRelNode, createNewAggregations, statisticsColumns, locationField, i, handlerContext);
            locationField = SchemaPath.getSimplePath(MetastoreAnalyzeConstants.LOCATION_FIELD);
            createNewAggregations = false;
        }
    }
    if (analyzeInfoProvider.supportsMetadataType(MetadataType.TABLE) && metadataLevel.includes(MetadataType.TABLE)) {
        MetadataHandlerContext handlerContext = MetadataHandlerContext.builder().tableInfo(tableInfo).metadataToHandle(Collections.emptyList()).metadataType(MetadataType.TABLE).depthLevel(segmentExpressions.size()).segmentColumns(segmentColumns).build();
        convertedRelNode = getTableAggRelNode(convertedRelNode, createNewAggregations, statisticsColumns, locationField, handlerContext);
    } else {
        throw new IllegalStateException("Analyze table with NONE level");
    }
    boolean useStatistics = context.getOptions().getOption(PlannerSettings.STATISTICS_USE);
    SqlNumericLiteral samplePercentLiteral = sqlAnalyzeTable.getSamplePercent();
    double samplePercent = samplePercentLiteral == null ? 100.0 : samplePercentLiteral.intValue(true);
    // Step 3: adds rel nodes for producing statistics analyze if required
    RelNode analyzeRel = useStatistics ? new DrillAnalyzeRel(convertedRelNode.getCluster(), convertedRelNode.getTraitSet(), convertToRawDrel(relNode), samplePercent) : convertToRawDrel(relBuilder.values(new String[] { "" }, "").build());
    MetadataControllerContext metadataControllerContext = MetadataControllerContext.builder().tableInfo(tableInfo).metastoreTableInfo(metastoreTableInfo).location(((FormatSelection) table.getSelection()).getSelection().getSelectionRoot()).interestingColumns(interestingColumns).segmentColumns(segmentColumns).metadataToHandle(allMetaToHandle).metadataToRemove(metadataToRemove).analyzeMetadataLevel(metadataLevel).build();
    convertedRelNode = new MetadataControllerRel(convertedRelNode.getCluster(), convertedRelNode.getTraitSet(), convertedRelNode, analyzeRel, metadataControllerContext);
    return new DrillScreenRel(convertedRelNode.getCluster(), convertedRelNode.getTraitSet(), convertedRelNode);
}

Example 10 with DrillTable

use of org.apache.drill.exec.planner.logical.DrillTable in project drill by apache.

the class DrillCalciteCatalogReader method getTable.

/**
 * If schema is not indicated (only one element in the list) or schema is default temporary workspace,
 * we need to check among session temporary tables in default temporary workspace first.
 * If temporary table is found and temporary tables usage is allowed, its table instance will be returned,
 * otherwise search will be conducted in original workspace.
 *
 * @param names list of schema and table names, table name is always the last element
 * @return table instance, null otherwise
 * @throws UserException if temporary tables usage is disallowed
 */
@Override
public Prepare.PreparingTable getTable(List<String> names) {
    checkTemporaryTable(names);
    Prepare.PreparingTable table = super.getTable(names);
    DrillTable drillTable;
    if (table != null && (drillTable = table.unwrap(DrillTable.class)) != null) {
        drillTable.setOptions(session.getOptions());
        drillTable.setTableMetadataProviderManager(tableCache.getUnchecked(DrillTableKey.of(names, drillTable)));
    }
    return table;
}