Examples with RangeExpression org.apache.carbondata.core.scan.expression.logical.RangeExpression used on opensource projects

Example 6 with RangeExpression

use of org.apache.carbondata.core.scan.expression.logical.RangeExpression in project carbondata by apache.

the class RangeFilterProcessorTest method createFilterTree_flavor1.

@Test
public void createFilterTree_flavor1() {
    // Build 3rd BTree a >= '11' and a > '12' and a <= '20' and a <= '15'
    Expression inputFilter;
    boolean result = false;
    ColumnSchema empColumnSchema = new ColumnSchema();
    empColumnSchema.setColumnName("a");
    empColumnSchema.setColumnUniqueId("a");
    empColumnSchema.setDimensionColumn(true);
    empColumnSchema.setEncodingList(Arrays.asList(Encoding.DICTIONARY));
    empColumnSchema.setDataType(DataType.STRING);
    CarbonDimension empDimension = new CarbonDimension(empColumnSchema, 0, 0, 0, 0, 0);
    ColumnExpression cola1 = new ColumnExpression("a", DataType.STRING);
    cola1.setDimension(true);
    cola1.setDimension(empDimension);
    ColumnExpression cola2 = new ColumnExpression("a", DataType.STRING);
    cola2.setDimension(true);
    cola2.setDimension(empDimension);
    ColumnExpression cola3 = new ColumnExpression("a", DataType.STRING);
    cola3.setDimension(true);
    cola3.setDimension(empDimension);
    ColumnExpression cola4 = new ColumnExpression("a", DataType.STRING);
    cola4.setDimension(true);
    cola4.setDimension(empDimension);
    Expression lessThan1 = new LessThanEqualToExpression(cola1, new LiteralExpression("15", DataType.STRING));
    Expression lessThan2 = new LessThanEqualToExpression(cola2, new LiteralExpression("20", DataType.STRING));
    Expression greaterThan1 = new GreaterThanExpression(cola3, new LiteralExpression("12", DataType.STRING));
    Expression greaterThan2 = new GreaterThanEqualToExpression(cola4, new LiteralExpression("11", DataType.STRING));
    Expression And1 = new AndExpression(new NotEqualsExpression(null, null), greaterThan2);
    Expression And2 = new AndExpression(And1, greaterThan1);
    Expression And3 = new AndExpression(And2, lessThan2);
    inputFilter = new AndExpression(And3, lessThan1);
    // Build The output
    ColumnExpression colb1 = new ColumnExpression("a", DataType.STRING);
    cola1.setDimension(true);
    cola1.setDimension(empDimension);
    ColumnExpression colb2 = new ColumnExpression("a", DataType.STRING);
    cola2.setDimension(true);
    cola2.setDimension(empDimension);
    Expression greaterThanb1 = new GreaterThanExpression(cola3, new LiteralExpression("12", DataType.STRING));
    Expression lessThanb1 = new LessThanEqualToExpression(cola1, new LiteralExpression("15", DataType.STRING));
    Expression Andb1 = new AndExpression(new NotEqualsExpression(null, null), new TrueExpression(null));
    Expression Andb2 = new AndExpression(Andb1, new RangeExpression(greaterThanb1, lessThanb1));
    Expression Andb3 = new AndExpression(Andb2, new TrueExpression(null));
    FilterOptimizer rangeFilterOptimizer = new RangeFilterOptmizer(new FilterOptimizerBasic(), inputFilter);
    rangeFilterOptimizer.optimizeFilter();
    result = checkBothTrees(inputFilter, new AndExpression(Andb3, new TrueExpression(null)));
    // no change
    Assert.assertTrue(result);
}

Example 7 with RangeExpression

use of org.apache.carbondata.core.scan.expression.logical.RangeExpression in project carbondata by apache.

the class ConditionalFilterResolverImpl method resolve.

/**
   * This API will resolve the filter expression and generates the
   * dictionaries for executing/evaluating the filter expressions in the
   * executer layer.
   *
   * @throws FilterUnsupportedException
   */
@Override
public void resolve(AbsoluteTableIdentifier absoluteTableIdentifier) throws FilterUnsupportedException, IOException {
    FilterResolverMetadata metadata = new FilterResolverMetadata();
    metadata.setTableIdentifier(absoluteTableIdentifier);
    if ((!isExpressionResolve) && exp instanceof BinaryConditionalExpression) {
        BinaryConditionalExpression binaryConditionalExpression = (BinaryConditionalExpression) exp;
        Expression leftExp = binaryConditionalExpression.getLeft();
        Expression rightExp = binaryConditionalExpression.getRight();
        if (leftExp instanceof ColumnExpression) {
            ColumnExpression columnExpression = (ColumnExpression) leftExp;
            metadata.setColumnExpression(columnExpression);
            metadata.setExpression(rightExp);
            metadata.setIncludeFilter(isIncludeFilter);
            // If imei=imei comes in filter condition then we need to
            // skip processing of right expression.
            // This flow has reached here assuming that this is a single
            // column expression.
            // we need to check if the other expression contains column
            // expression or not in depth.
            CarbonDimension dimension = columnExpression.getDimension();
            if (FilterUtil.checkIfExpressionContainsColumn(rightExp) || FilterUtil.isExpressionNeedsToResolved(rightExp, isIncludeFilter) && dimension.hasEncoding(Encoding.DICTIONARY) && !dimension.hasEncoding(Encoding.DIRECT_DICTIONARY)) {
                isExpressionResolve = true;
            } else {
                //Visitor pattern is been used in this scenario inorder to populate the
                // dimColResolvedFilterInfo
                //visitable object with filter member values based on the visitor type, currently there
                //3 types of visitors custom,direct and no dictionary, all types of visitor populate
                //the visitable instance as per its buisness logic which is different for all the
                // visitors.
                dimColResolvedFilterInfo.populateFilterInfoBasedOnColumnType(FilterInfoTypeVisitorFactory.getResolvedFilterInfoVisitor(columnExpression, exp), metadata);
            }
        } else if (rightExp instanceof ColumnExpression) {
            ColumnExpression columnExpression = (ColumnExpression) rightExp;
            metadata.setColumnExpression(columnExpression);
            metadata.setExpression(leftExp);
            metadata.setIncludeFilter(isIncludeFilter);
            if (columnExpression.getDataType().equals(DataType.TIMESTAMP) || columnExpression.getDataType().equals(DataType.DATE)) {
                isExpressionResolve = true;
            } else {
                // expression or not in depth.
                if (FilterUtil.checkIfExpressionContainsColumn(leftExp)) {
                    isExpressionResolve = true;
                } else {
                    dimColResolvedFilterInfo.populateFilterInfoBasedOnColumnType(FilterInfoTypeVisitorFactory.getResolvedFilterInfoVisitor(columnExpression, exp), metadata);
                }
            }
        } else {
            isExpressionResolve = true;
        }
    }
    if (isExpressionResolve && exp instanceof ConditionalExpression) {
        ConditionalExpression conditionalExpression = (ConditionalExpression) exp;
        List<ColumnExpression> columnList = conditionalExpression.getColumnList();
        metadata.setColumnExpression(columnList.get(0));
        metadata.setExpression(exp);
        metadata.setIncludeFilter(isIncludeFilter);
        if (!columnList.get(0).getDimension().hasEncoding(Encoding.DICTIONARY) || columnList.get(0).getDimension().hasEncoding(Encoding.DIRECT_DICTIONARY) || (exp instanceof RangeExpression)) {
            dimColResolvedFilterInfo.populateFilterInfoBasedOnColumnType(FilterInfoTypeVisitorFactory.getResolvedFilterInfoVisitor(columnList.get(0), exp), metadata);
        } else if (columnList.get(0).getDimension().hasEncoding(Encoding.DICTIONARY) && !(columnList.get(0).getDimension().getDataType() == org.apache.carbondata.core.metadata.datatype.DataType.STRUCT || columnList.get(0).getDimension().getDataType() == org.apache.carbondata.core.metadata.datatype.DataType.ARRAY)) {
            dimColResolvedFilterInfo.setFilterValues(FilterUtil.getFilterListForAllValues(absoluteTableIdentifier, exp, columnList.get(0), isIncludeFilter));
            dimColResolvedFilterInfo.setColumnIndex(columnList.get(0).getDimension().getOrdinal());
            dimColResolvedFilterInfo.setDimension(columnList.get(0).getDimension());
        }
    }
}