Examples with ExprEval org.apache.druid.math.expr.ExprEval used on opensource projects

Example 1 with ExprEval

use of org.apache.druid.math.expr.ExprEval in project druid by druid-io.

the class HyperUniqueExpressionsTest method testEstimate.

@Test
public void testEstimate() {
    Expr expr = Parser.parse("hyper_unique_estimate(hyper_unique_add(1.234, hyper_unique()))", MACRO_TABLE);
    ExprEval eval = expr.eval(inputBindings);
    Assert.assertEquals(ExpressionType.DOUBLE, eval.type());
    Assert.assertEquals(1.0, eval.asDouble(), 0.01);
}

Example 2 with ExprEval

use of org.apache.druid.math.expr.ExprEval in project druid by druid-io.

the class HyperUniqueExpressionsTest method testDouble.

@Test
public void testDouble() {
    Expr expr = Parser.parse("hyper_unique_add(1.234, hyper_unique())", MACRO_TABLE);
    ExprEval eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(1.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add(1.234, hyper_unique_add(5.678, hyper_unique()))", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(2.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add(double, hyper_unique())", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(1.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add(nullDouble, hyper_unique())", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(NullHandling.replaceWithDefault() ? 1.0 : 0.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
}

Example 3 with ExprEval

use of org.apache.druid.math.expr.ExprEval in project druid by druid-io.

the class HyperUniqueExpressionsTest method testCreate.

@Test
public void testCreate() {
    Expr expr = Parser.parse("hyper_unique()", MACRO_TABLE);
    ExprEval eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(0.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0);
}

Example 4 with ExprEval

use of org.apache.druid.math.expr.ExprEval in project druid by druid-io.

the class HyperUniqueExpressionsTest method testString.

@Test
public void testString() {
    Expr expr = Parser.parse("hyper_unique_add('foo', hyper_unique())", MACRO_TABLE);
    ExprEval eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(1.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add('bar', hyper_unique_add('foo', hyper_unique()))", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(2.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add(string, hyper_unique())", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(1.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
    expr = Parser.parse("hyper_unique_add(nullString, hyper_unique())", MACRO_TABLE);
    eval = expr.eval(inputBindings);
    Assert.assertEquals(HyperUniqueExpressions.TYPE, eval.type());
    Assert.assertTrue(eval.value() instanceof HyperLogLogCollector);
    Assert.assertEquals(NullHandling.replaceWithDefault() ? 1.0 : 0.0, ((HyperLogLogCollector) eval.value()).estimateCardinality(), 0.01);
}

Example 5 with ExprEval

use of org.apache.druid.math.expr.ExprEval in project druid by druid-io.

the class IPv4AddressStringifyExprMacroTest method eval.

private Object eval(Expr arg) {
    Expr expr = apply(Collections.singletonList(arg));
    ExprEval eval = expr.eval(InputBindings.nilBindings());
    return eval.value();
}