Examples with SingleTableProvider org.apache.carbondata.core.scan.filter.SingleTableProvider used on opensource projects

Example 6 with SingleTableProvider

use of org.apache.carbondata.core.scan.filter.SingleTableProvider in project carbondata by apache.

the class MapredCarbonInputFormat method getQueryModel.

private QueryModel getQueryModel(Configuration configuration, String path) throws IOException, InvalidConfigurationException {
    CarbonTable carbonTable = getCarbonTable(configuration, path);
    TableProvider tableProvider = new SingleTableProvider(carbonTable);
    // getting the table absoluteTableIdentifier from the carbonTable
    // to avoid unnecessary deserialization
    AbsoluteTableIdentifier identifier = carbonTable.getAbsoluteTableIdentifier();
    String projectionString = getProjection(configuration, carbonTable, identifier.getCarbonTableIdentifier().getTableName());
    String[] projectionColumns = projectionString.split(",");
    QueryModel queryModel = carbonTable.createQueryWithProjection(projectionColumns, new DataTypeConverterImpl());
    // set the filter to the query model in order to filter blocklet before scan
    Expression filter = getFilterPredicates(configuration);
    carbonTable.processFilterExpression(filter, null, null);
    FilterResolverIntf filterIntf = carbonTable.resolveFilter(filter, tableProvider);
    queryModel.setFilterExpressionResolverTree(filterIntf);
    return queryModel;
}