Examples with QueryDimension org.apache.carbondata.core.scan.model.QueryDimension used on opensource projects

Example 1 with QueryDimension

use of org.apache.carbondata.core.scan.model.QueryDimension in project carbondata by apache.

the class AbstractQueryExecutor method getBlockExecutionInfoForBlock.

/**
   * Below method will be used to get the block execution info which is
   * required to execute any block  based on query model
   *
   * @param queryModel query model from user query
   * @param blockIndex block index
   * @return block execution info
   * @throws QueryExecutionException any failure during block info creation
   */
protected BlockExecutionInfo getBlockExecutionInfoForBlock(QueryModel queryModel, AbstractIndex blockIndex, int startBlockletIndex, int numberOfBlockletToScan, String filePath) throws QueryExecutionException {
    BlockExecutionInfo blockExecutionInfo = new BlockExecutionInfo();
    SegmentProperties segmentProperties = blockIndex.getSegmentProperties();
    List<CarbonDimension> tableBlockDimensions = segmentProperties.getDimensions();
    KeyGenerator blockKeyGenerator = segmentProperties.getDimensionKeyGenerator();
    // below is to get only those dimension in query which is present in the
    // table block
    List<QueryDimension> currentBlockQueryDimensions = RestructureUtil.createDimensionInfoAndGetCurrentBlockQueryDimension(blockExecutionInfo, queryModel.getQueryDimension(), tableBlockDimensions, segmentProperties.getComplexDimensions());
    int tableFactPathLength = CarbonStorePath.getCarbonTablePath(queryModel.getAbsoluteTableIdentifier().getStorePath(), queryModel.getAbsoluteTableIdentifier().getCarbonTableIdentifier()).getFactDir().length() + 1;
    blockExecutionInfo.setBlockId(filePath.substring(tableFactPathLength));
    blockExecutionInfo.setStartBlockletIndex(startBlockletIndex);
    blockExecutionInfo.setNumberOfBlockletToScan(numberOfBlockletToScan);
    blockExecutionInfo.setQueryDimensions(currentBlockQueryDimensions.toArray(new QueryDimension[currentBlockQueryDimensions.size()]));
    // get measures present in the current block
    List<QueryMeasure> currentBlockQueryMeasures = getCurrentBlockQueryMeasures(blockExecutionInfo, queryModel, blockIndex);
    blockExecutionInfo.setQueryMeasures(currentBlockQueryMeasures.toArray(new QueryMeasure[currentBlockQueryMeasures.size()]));
    blockExecutionInfo.setDataBlock(blockIndex);
    blockExecutionInfo.setBlockKeyGenerator(blockKeyGenerator);
    // setting whether raw record query or not
    blockExecutionInfo.setRawRecordDetailQuery(queryModel.isForcedDetailRawQuery());
    // total number dimension
    blockExecutionInfo.setTotalNumberDimensionBlock(segmentProperties.getDimensionOrdinalToBlockMapping().size());
    blockExecutionInfo.setTotalNumberOfMeasureBlock(segmentProperties.getMeasuresOrdinalToBlockMapping().size());
    blockExecutionInfo.setAbsoluteTableIdentifier(queryModel.getAbsoluteTableIdentifier());
    blockExecutionInfo.setComplexDimensionInfoMap(QueryUtil.getComplexDimensionsMap(currentBlockQueryDimensions, segmentProperties.getDimensionOrdinalToBlockMapping(), segmentProperties.getEachComplexDimColumnValueSize(), queryProperties.columnToDictionayMapping, queryProperties.complexFilterDimension));
    IndexKey startIndexKey = null;
    IndexKey endIndexKey = null;
    if (null != queryModel.getFilterExpressionResolverTree()) {
        // loading the filter executer tree for filter evaluation
        blockExecutionInfo.setFilterExecuterTree(FilterUtil.getFilterExecuterTree(queryModel.getFilterExpressionResolverTree(), segmentProperties, blockExecutionInfo.getComlexDimensionInfoMap()));
        List<IndexKey> listOfStartEndKeys = new ArrayList<IndexKey>(2);
        FilterUtil.traverseResolverTreeAndGetStartAndEndKey(segmentProperties, queryModel.getFilterExpressionResolverTree(), listOfStartEndKeys);
        startIndexKey = listOfStartEndKeys.get(0);
        endIndexKey = listOfStartEndKeys.get(1);
    } else {
        try {
            startIndexKey = FilterUtil.prepareDefaultStartIndexKey(segmentProperties);
            endIndexKey = FilterUtil.prepareDefaultEndIndexKey(segmentProperties);
        } catch (KeyGenException e) {
            throw new QueryExecutionException(e);
        }
    }
    //setting the start index key of the block node
    blockExecutionInfo.setStartKey(startIndexKey);
    //setting the end index key of the block node
    blockExecutionInfo.setEndKey(endIndexKey);
    // expression dimensions
    List<CarbonDimension> expressionDimensions = new ArrayList<CarbonDimension>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
    // expression measure
    List<CarbonMeasure> expressionMeasures = new ArrayList<CarbonMeasure>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
    // setting all the dimension chunk indexes to be read from file
    int numberOfElementToConsider = 0;
    // list of dimensions to be projected
    Set<Integer> allProjectionListDimensionIdexes = new LinkedHashSet<>();
    // create a list of filter dimensions present in the current block
    Set<CarbonDimension> currentBlockFilterDimensions = getCurrentBlockFilterDimensions(queryProperties.complexFilterDimension, segmentProperties);
    int[] dimensionsBlockIndexes = QueryUtil.getDimensionsBlockIndexes(currentBlockQueryDimensions, segmentProperties.getDimensionOrdinalToBlockMapping(), expressionDimensions, currentBlockFilterDimensions, allProjectionListDimensionIdexes);
    int numberOfColumnToBeReadInOneIO = Integer.parseInt(CarbonProperties.getInstance().getProperty(CarbonV3DataFormatConstants.NUMBER_OF_COLUMN_TO_READ_IN_IO, CarbonV3DataFormatConstants.NUMBER_OF_COLUMN_TO_READ_IN_IO_DEFAULTVALUE));
    if (dimensionsBlockIndexes.length > 0) {
        numberOfElementToConsider = dimensionsBlockIndexes[dimensionsBlockIndexes.length - 1] == segmentProperties.getBlockTodimensionOrdinalMapping().size() - 1 ? dimensionsBlockIndexes.length - 1 : dimensionsBlockIndexes.length;
        blockExecutionInfo.setAllSelectedDimensionBlocksIndexes(CarbonUtil.getRangeIndex(dimensionsBlockIndexes, numberOfElementToConsider, numberOfColumnToBeReadInOneIO));
    } else {
        blockExecutionInfo.setAllSelectedDimensionBlocksIndexes(new int[0][0]);
    }
    // get the list of updated filter measures present in the current block
    Set<CarbonMeasure> currentBlockFilterMeasures = getCurrentBlockFilterMeasures(queryProperties.filterMeasures, segmentProperties);
    // list of measures to be projected
    List<Integer> allProjectionListMeasureIndexes = new ArrayList<>();
    int[] measureBlockIndexes = QueryUtil.getMeasureBlockIndexes(currentBlockQueryMeasures, expressionMeasures, segmentProperties.getMeasuresOrdinalToBlockMapping(), currentBlockFilterMeasures, allProjectionListMeasureIndexes);
    if (measureBlockIndexes.length > 0) {
        numberOfElementToConsider = measureBlockIndexes[measureBlockIndexes.length - 1] == segmentProperties.getMeasures().size() - 1 ? measureBlockIndexes.length - 1 : measureBlockIndexes.length;
        // setting all the measure chunk indexes to be read from file
        blockExecutionInfo.setAllSelectedMeasureBlocksIndexes(CarbonUtil.getRangeIndex(measureBlockIndexes, numberOfElementToConsider, numberOfColumnToBeReadInOneIO));
    } else {
        blockExecutionInfo.setAllSelectedMeasureBlocksIndexes(new int[0][0]);
    }
    // setting the indexes of list of dimension in projection list
    blockExecutionInfo.setProjectionListDimensionIndexes(ArrayUtils.toPrimitive(allProjectionListDimensionIdexes.toArray(new Integer[allProjectionListDimensionIdexes.size()])));
    // setting the indexes of list of measures in projection list
    blockExecutionInfo.setProjectionListMeasureIndexes(ArrayUtils.toPrimitive(allProjectionListMeasureIndexes.toArray(new Integer[allProjectionListMeasureIndexes.size()])));
    // setting the size of fixed key column (dictionary column)
    blockExecutionInfo.setFixedLengthKeySize(getKeySize(currentBlockQueryDimensions, segmentProperties));
    Set<Integer> dictionaryColumnBlockIndex = new HashSet<Integer>();
    List<Integer> noDictionaryColumnBlockIndex = new ArrayList<Integer>();
    // get the block index to be read from file for query dimension
    // for both dictionary columns and no dictionary columns
    QueryUtil.fillQueryDimensionsBlockIndexes(currentBlockQueryDimensions, segmentProperties.getDimensionOrdinalToBlockMapping(), dictionaryColumnBlockIndex, noDictionaryColumnBlockIndex);
    int[] queryDictionaryColumnBlockIndexes = ArrayUtils.toPrimitive(dictionaryColumnBlockIndex.toArray(new Integer[dictionaryColumnBlockIndex.size()]));
    // need to sort the dictionary column as for all dimension
    // column key will be filled based on key order
    Arrays.sort(queryDictionaryColumnBlockIndexes);
    blockExecutionInfo.setDictionaryColumnBlockIndex(queryDictionaryColumnBlockIndexes);
    // setting the no dictionary column block indexes
    blockExecutionInfo.setNoDictionaryBlockIndexes(ArrayUtils.toPrimitive(noDictionaryColumnBlockIndex.toArray(new Integer[noDictionaryColumnBlockIndex.size()])));
    // setting column id to dictionary mapping
    blockExecutionInfo.setColumnIdToDcitionaryMapping(queryProperties.columnToDictionayMapping);
    // setting each column value size
    blockExecutionInfo.setEachColumnValueSize(segmentProperties.getEachDimColumnValueSize());
    blockExecutionInfo.setComplexColumnParentBlockIndexes(getComplexDimensionParentBlockIndexes(currentBlockQueryDimensions));
    blockExecutionInfo.setVectorBatchCollector(queryModel.isVectorReader());
    try {
        // to set column group and its key structure info which will be used
        // to
        // for getting the column group column data in case of final row
        // and in case of dimension aggregation
        blockExecutionInfo.setColumnGroupToKeyStructureInfo(QueryUtil.getColumnGroupKeyStructureInfo(currentBlockQueryDimensions, segmentProperties));
    } catch (KeyGenException e) {
        throw new QueryExecutionException(e);
    }
    // set actual query dimensions and measures. It may differ in case of restructure scenarios
    blockExecutionInfo.setActualQueryDimensions(queryModel.getQueryDimension().toArray(new QueryDimension[queryModel.getQueryDimension().size()]));
    blockExecutionInfo.setActualQueryMeasures(queryModel.getQueryMeasures().toArray(new QueryMeasure[queryModel.getQueryMeasures().size()]));
    return blockExecutionInfo;
}

Example 2 with QueryDimension

use of org.apache.carbondata.core.scan.model.QueryDimension in project carbondata by apache.

the class QueryUtil method resolveQueryModel.

/**
   * Below method will be used to resolve the query model
   * resolve will be setting the actual dimension and measure object
   * as from driver only column name will be passes to avoid the heavy object
   * serialization
   *
   * @param queryModel query model
   */
public static void resolveQueryModel(QueryModel queryModel) {
    CarbonMetadata.getInstance().addCarbonTable(queryModel.getTable());
    // TODO need to load the table from table identifier
    CarbonTable carbonTable = queryModel.getTable();
    String tableName = queryModel.getAbsoluteTableIdentifier().getCarbonTableIdentifier().getTableName();
    // resolve query dimension
    for (QueryDimension queryDimension : queryModel.getQueryDimension()) {
        queryDimension.setDimension(carbonTable.getDimensionByName(tableName, queryDimension.getColumnName()));
    }
    // resolve query measure
    for (QueryMeasure queryMeasure : queryModel.getQueryMeasures()) {
        //never come false but if in future we can remove so not removing first if check
        if (queryMeasure.getColumnName().equals("count(*)")) {
            if (carbonTable.getMeasureByTableName(tableName).size() > 0 && !carbonTable.getMeasureByTableName(tableName).get(0).getColName().equals(CarbonCommonConstants.DEFAULT_INVISIBLE_DUMMY_MEASURE)) {
                queryMeasure.setMeasure(carbonTable.getMeasureByTableName(tableName).get(0));
            } else {
                CarbonMeasure dummyMeasure = new CarbonMeasure(carbonTable.getDimensionByTableName(tableName).get(0).getColumnSchema(), 0);
                queryMeasure.setMeasure(dummyMeasure);
            }
        } else {
            queryMeasure.setMeasure(carbonTable.getMeasureByName(tableName, queryMeasure.getColumnName()));
        }
    }
}

Example 3 with QueryDimension

use of org.apache.carbondata.core.scan.model.QueryDimension in project carbondata by apache.

the class CarbonCompactionExecutor method prepareQueryModel.

/**
   * Preparing of the query model.
   *
   * @param blockList
   * @return
   */
private QueryModel prepareQueryModel(List<TableBlockInfo> blockList) {
    QueryModel model = new QueryModel();
    model.setTableBlockInfos(blockList);
    model.setForcedDetailRawQuery(true);
    model.setFilterExpressionResolverTree(null);
    List<QueryDimension> dims = new ArrayList<>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
    List<CarbonDimension> dimensions = carbonTable.getDimensionByTableName(carbonTable.getFactTableName());
    for (CarbonDimension dim : dimensions) {
        // check if dimension is deleted
        QueryDimension queryDimension = new QueryDimension(dim.getColName());
        queryDimension.setDimension(dim);
        dims.add(queryDimension);
    }
    model.setQueryDimension(dims);
    List<QueryMeasure> msrs = new ArrayList<>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
    List<CarbonMeasure> measures = carbonTable.getMeasureByTableName(carbonTable.getFactTableName());
    for (CarbonMeasure carbonMeasure : measures) {
        // check if measure is deleted
        QueryMeasure queryMeasure = new QueryMeasure(carbonMeasure.getColName());
        queryMeasure.setMeasure(carbonMeasure);
        msrs.add(queryMeasure);
    }
    model.setQueryMeasures(msrs);
    model.setQueryId(System.nanoTime() + "");
    model.setAbsoluteTableIdentifier(carbonTable.getAbsoluteTableIdentifier());
    model.setTable(carbonTable);
    return model;
}

Example 4 with QueryDimension

use of org.apache.carbondata.core.scan.model.QueryDimension in project carbondata by apache.

the class CarbonInputFormatUtil method addQueryDimension.

private static void addQueryDimension(CarbonQueryPlan plan, int order, CarbonDimension dimension) {
    QueryDimension queryDimension = new QueryDimension(dimension.getColName());
    queryDimension.setQueryOrder(order);
    queryDimension.setDimension(dimension);
    plan.addDimension(queryDimension);
}

Example 5 with QueryDimension

use of org.apache.carbondata.core.scan.model.QueryDimension in project carbondata by apache.

the class RestructureUtil method createDimensionInfoAndGetCurrentBlockQueryDimension.

/**
   * Below method will be used to get the updated query dimension updation
   * means, after restructuring some dimension will be not present in older
   * table blocks in that case we need to select only those dimension out of
   * query dimension which is present in the current table block
   *
   * @param blockExecutionInfo
   * @param queryDimensions
   * @param tableBlockDimensions
   * @param tableComplexDimension
   * @return list of query dimension which is present in the table block
   */
public static List<QueryDimension> createDimensionInfoAndGetCurrentBlockQueryDimension(BlockExecutionInfo blockExecutionInfo, List<QueryDimension> queryDimensions, List<CarbonDimension> tableBlockDimensions, List<CarbonDimension> tableComplexDimension) {
    List<QueryDimension> presentDimension = new ArrayList<QueryDimension>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
    boolean[] isDimensionExists = new boolean[queryDimensions.size()];
    Object[] defaultValues = new Object[queryDimensions.size()];
    // create dimension information instance
    DimensionInfo dimensionInfo = new DimensionInfo(isDimensionExists, defaultValues);
    int newDictionaryColumnCount = 0;
    int newNoDictionaryColumnCount = 0;
    // selecting only those dimension which is present in the query
    int dimIndex = 0;
    for (QueryDimension queryDimension : queryDimensions) {
        if (queryDimension.getDimension().hasEncoding(Encoding.IMPLICIT)) {
            presentDimension.add(queryDimension);
            isDimensionExists[dimIndex] = true;
        } else {
            for (CarbonDimension tableDimension : tableBlockDimensions) {
                if (tableDimension.getColumnId().equals(queryDimension.getDimension().getColumnId())) {
                    QueryDimension currentBlockDimension = new QueryDimension(tableDimension.getColName());
                    tableDimension.getColumnSchema().setDataType(queryDimension.getDimension().getDataType());
                    tableDimension.getColumnSchema().setPrecision(queryDimension.getDimension().getColumnSchema().getPrecision());
                    tableDimension.getColumnSchema().setScale(queryDimension.getDimension().getColumnSchema().getScale());
                    tableDimension.getColumnSchema().setDefaultValue(queryDimension.getDimension().getDefaultValue());
                    currentBlockDimension.setDimension(tableDimension);
                    currentBlockDimension.setQueryOrder(queryDimension.getQueryOrder());
                    presentDimension.add(currentBlockDimension);
                    isDimensionExists[dimIndex] = true;
                    break;
                }
            }
            // if dimension is found then no need to search in the complex dimensions list
            if (isDimensionExists[dimIndex]) {
                dimIndex++;
                continue;
            }
            for (CarbonDimension tableDimension : tableComplexDimension) {
                if (tableDimension.getColumnId().equals(queryDimension.getDimension().getColumnId())) {
                    QueryDimension currentBlockDimension = new QueryDimension(tableDimension.getColName());
                    // TODO: for complex dimension set scale and precision by traversing
                    // the child dimensions
                    currentBlockDimension.setDimension(tableDimension);
                    currentBlockDimension.setQueryOrder(queryDimension.getQueryOrder());
                    presentDimension.add(currentBlockDimension);
                    isDimensionExists[dimIndex] = true;
                    break;
                }
            }
            // add default value only in case query dimension is not found in the current block
            if (!isDimensionExists[dimIndex]) {
                defaultValues[dimIndex] = validateAndGetDefaultValue(queryDimension.getDimension());
                blockExecutionInfo.setRestructuredBlock(true);
                // newly added columns data need to be filled
                if (queryDimension.getDimension().hasEncoding(Encoding.DICTIONARY)) {
                    dimensionInfo.setDictionaryColumnAdded(true);
                    newDictionaryColumnCount++;
                } else {
                    dimensionInfo.setNoDictionaryColumnAdded(true);
                    newNoDictionaryColumnCount++;
                }
            }
        }
        dimIndex++;
    }
    dimensionInfo.setNewDictionaryColumnCount(newDictionaryColumnCount);
    dimensionInfo.setNewNoDictionaryColumnCount(newNoDictionaryColumnCount);
    blockExecutionInfo.setDimensionInfo(dimensionInfo);
    return presentDimension;
}