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

Example 6 with FilterOptimizer

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

the class RangeFilterProcessorTest method createFilterTree.

@Test
public void createFilterTree() {
    Expression inputFilter;
    boolean result = false;
    ColumnExpression cola = new ColumnExpression("a", DataTypes.STRING);
    cola.setDimension(true);
    ColumnSchema empColumnSchema = new ColumnSchema();
    empColumnSchema.setColumnName("empNameCol");
    empColumnSchema.setColumnUniqueId("empNameCol");
    empColumnSchema.setDimensionColumn(true);
    empColumnSchema.setEncodingList(Arrays.asList(Encoding.DICTIONARY));
    empColumnSchema.setDataType(DataTypes.STRING);
    CarbonDimension empDimension = new CarbonDimension(empColumnSchema, 0, 0, 0, 0, 0);
    cola.setDimension(empDimension);
    Expression greaterThan = new GreaterThanEqualToExpression(cola, new LiteralExpression("11", DataTypes.STRING));
    ColumnExpression colb = new ColumnExpression("a", DataTypes.STRING);
    colb.setDimension(true);
    colb.setDimension(empDimension);
    Expression lessThan = new LessThanEqualToExpression(colb, new LiteralExpression("20", DataTypes.STRING));
    inputFilter = new AndExpression(greaterThan, lessThan);
    Expression output = new AndExpression(new RangeExpression(new GreaterThanEqualToExpression(new ColumnExpression("a", DataTypes.STRING), new LiteralExpression("11", DataTypes.STRING)), new LessThanEqualToExpression(new ColumnExpression("a", DataTypes.STRING), new LiteralExpression("20", DataTypes.STRING))), new TrueExpression(null));
    FilterOptimizer rangeFilterOptimizer = new RangeFilterOptmizer(inputFilter);
    rangeFilterOptimizer.optimizeFilter();
    result = checkBothTrees(inputFilter, output);
    Assert.assertTrue(result);
}