Examples with IndexKey org.apache.carbondata.core.datastore.IndexKey used on opensource projects

Example 1 with IndexKey

use of org.apache.carbondata.core.datastore.IndexKey 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 IndexKey

use of org.apache.carbondata.core.datastore.IndexKey in project carbondata by apache.

the class FilterExpressionProcessor method getFilterredBlocks.

/**
   * This API will scan the Segment level all btrees and selects the required
   * block reference  nodes inorder to push the same to executer for applying filters
   * on the respective data reference node.
   * Following Algorithm is followed in below API
   * Step:1 Get the start end key based on the filter tree resolver information
   * Step:2 Prepare the IndexKeys inorder to scan the tree and get the start and end reference
   * node(block)
   * Step:3 Once data reference node ranges retrieved traverse the node within this range
   * and select the node based on the block min and max value and the filter value.
   * Step:4 The selected blocks will be send to executers for applying the filters with the help
   * of Filter executers.
   *
   */
public List<DataRefNode> getFilterredBlocks(DataRefNode btreeNode, FilterResolverIntf filterResolver, AbstractIndex tableSegment, AbsoluteTableIdentifier tableIdentifier) {
    // Need to get the current dimension tables
    List<DataRefNode> listOfDataBlocksToScan = new ArrayList<DataRefNode>();
    // getting the start and end index key based on filter for hitting the
    // selected block reference nodes based on filter resolver tree.
    LOGGER.debug("preparing the start and end key for finding" + "start and end block as per filter resolver");
    List<IndexKey> listOfStartEndKeys = new ArrayList<IndexKey>(2);
    FilterUtil.traverseResolverTreeAndGetStartAndEndKey(tableSegment.getSegmentProperties(), filterResolver, listOfStartEndKeys);
    // reading the first value from list which has start key
    IndexKey searchStartKey = listOfStartEndKeys.get(0);
    // reading the last value from list which has end key
    IndexKey searchEndKey = listOfStartEndKeys.get(1);
    if (null == searchStartKey && null == searchEndKey) {
        try {
            // TODO need to handle for no dictionary dimensions
            searchStartKey = FilterUtil.prepareDefaultStartIndexKey(tableSegment.getSegmentProperties());
            // TODO need to handle for no dictionary dimensions
            searchEndKey = FilterUtil.prepareDefaultEndIndexKey(tableSegment.getSegmentProperties());
        } catch (KeyGenException e) {
            return listOfDataBlocksToScan;
        }
    }
    LOGGER.debug("Successfully retrieved the start and end key" + "Dictionary Start Key: " + searchStartKey.getDictionaryKeys() + "No Dictionary Start Key " + searchStartKey.getNoDictionaryKeys() + "Dictionary End Key: " + searchEndKey.getDictionaryKeys() + "No Dictionary End Key " + searchEndKey.getNoDictionaryKeys());
    long startTimeInMillis = System.currentTimeMillis();
    DataRefNodeFinder blockFinder = new BTreeDataRefNodeFinder(tableSegment.getSegmentProperties().getEachDimColumnValueSize(), tableSegment.getSegmentProperties().getNumberOfSortColumns(), tableSegment.getSegmentProperties().getNumberOfNoDictSortColumns());
    DataRefNode startBlock = blockFinder.findFirstDataBlock(btreeNode, searchStartKey);
    DataRefNode endBlock = blockFinder.findLastDataBlock(btreeNode, searchEndKey);
    FilterExecuter filterExecuter = FilterUtil.getFilterExecuterTree(filterResolver, tableSegment.getSegmentProperties(), null);
    while (startBlock != endBlock) {
        addBlockBasedOnMinMaxValue(filterExecuter, listOfDataBlocksToScan, startBlock);
        startBlock = startBlock.getNextDataRefNode();
    }
    addBlockBasedOnMinMaxValue(filterExecuter, listOfDataBlocksToScan, endBlock);
    LOGGER.info("Total Time in retrieving the data reference node" + "after scanning the btree " + (System.currentTimeMillis() - startTimeInMillis) + " Total number of data reference node for executing filter(s) " + listOfDataBlocksToScan.size());
    return listOfDataBlocksToScan;
}

Example 3 with IndexKey

use of org.apache.carbondata.core.datastore.IndexKey in project carbondata by apache.

the class FilterUtil method prepareDefaultStartIndexKey.

/**
   * method will create a default end key in case of no end key is been
   * derived using existing filter or in case of non filter queries.
   *
   * @param segmentProperties
   * @return
   * @throws KeyGenException
   */
public static IndexKey prepareDefaultStartIndexKey(SegmentProperties segmentProperties) throws KeyGenException {
    IndexKey startIndexKey;
    long[] dictionarySurrogateKey = new long[segmentProperties.getNumberOfDictSortColumns()];
    byte[] dictionaryStartMdkey = segmentProperties.getSortColumnsGenerator().generateKey(dictionarySurrogateKey);
    byte[] noDictionaryStartKeyArray = getNoDictionaryDefaultStartKey(segmentProperties);
    startIndexKey = new IndexKey(dictionaryStartMdkey, noDictionaryStartKeyArray);
    return startIndexKey;
}

Example 4 with IndexKey

use of org.apache.carbondata.core.datastore.IndexKey in project carbondata by apache.

the class FilterUtil method prepareDefaultEndIndexKey.

/**
   * method will create a default end key in case of no end key is been derived using existing
   * filter or in case of non filter queries.
   *
   * @param segmentProperties
   * @return
   * @throws KeyGenException
   */
public static IndexKey prepareDefaultEndIndexKey(SegmentProperties segmentProperties) throws KeyGenException {
    long[] dictionarySurrogateKey = new long[segmentProperties.getNumberOfDictSortColumns()];
    int index = 0;
    int[] dimColumnsCardinality = segmentProperties.getDimColumnsCardinality();
    for (int i = 0; i < dictionarySurrogateKey.length; i++) {
        dictionarySurrogateKey[index++] = dimColumnsCardinality[i];
    }
    IndexKey endIndexKey;
    byte[] dictionaryendMdkey = segmentProperties.getSortColumnsGenerator().generateKey(dictionarySurrogateKey);
    byte[] noDictionaryEndKeyBuffer = getNoDictionaryDefaultEndKey(segmentProperties);
    endIndexKey = new IndexKey(dictionaryendMdkey, noDictionaryEndKeyBuffer);
    return endIndexKey;
}

Example 5 with IndexKey

use of org.apache.carbondata.core.datastore.IndexKey in project carbondata by apache.

the class AbstractBTreeBuilder method convertStartKeyToNodeEntry.

/**
   * Below method is to convert the start key
   * into fixed and variable length key.
   * data format<lenght><fixed length key><length><variable length key>
   *
   * @param startKey
   * @return Index key
   */
protected IndexKey convertStartKeyToNodeEntry(byte[] startKey) {
    ByteBuffer buffer = ByteBuffer.wrap(startKey);
    buffer.rewind();
    int dictonaryKeySize = buffer.getInt();
    int nonDictonaryKeySize = buffer.getInt();
    byte[] dictionaryKey = new byte[dictonaryKeySize];
    buffer.get(dictionaryKey);
    byte[] nonDictionaryKey = new byte[nonDictonaryKeySize];
    buffer.get(nonDictionaryKey);
    return new IndexKey(dictionaryKey, nonDictionaryKey);
}