Examples with NotExpression com.facebook.presto.sql.tree.NotExpression used on opensource projects

Example 1 with NotExpression

use of com.facebook.presto.sql.tree.NotExpression in project presto by prestodb.

the class TestSqlParser method testBetween.

@Test
public void testBetween() throws Exception {
    assertExpression("1 BETWEEN 2 AND 3", new BetweenPredicate(new LongLiteral("1"), new LongLiteral("2"), new LongLiteral("3")));
    assertExpression("1 NOT BETWEEN 2 AND 3", new NotExpression(new BetweenPredicate(new LongLiteral("1"), new LongLiteral("2"), new LongLiteral("3"))));
}

Example 2 with NotExpression

use of com.facebook.presto.sql.tree.NotExpression in project presto by prestodb.

the class DomainTranslator method extractDisjuncts.

private static List<Expression> extractDisjuncts(Type type, DiscreteValues discreteValues, SymbolReference reference) {
    List<Expression> values = discreteValues.getValues().stream().map(object -> toExpression(object, type)).collect(toList());
    // If values is empty, then the equatableValues was either ALL or NONE, both of which should already have been checked for
    checkState(!values.isEmpty());
    Expression predicate;
    if (values.size() == 1) {
        predicate = new ComparisonExpression(EQUAL, reference, getOnlyElement(values));
    } else {
        predicate = new InPredicate(reference, new InListExpression(values));
    }
    if (!discreteValues.isWhiteList()) {
        predicate = new NotExpression(predicate);
    }
    return ImmutableList.of(predicate);
}

Example 3 with NotExpression

use of com.facebook.presto.sql.tree.NotExpression in project presto by prestodb.

the class SubqueryPlanner method appendQuantifiedComparisonApplyNode.

private PlanBuilder appendQuantifiedComparisonApplyNode(PlanBuilder subPlan, QuantifiedComparisonExpression quantifiedComparison, boolean correlationAllowed) {
    if (subPlan.canTranslate(quantifiedComparison)) {
        // given subquery is already appended
        return subPlan;
    }
    switch(quantifiedComparison.getComparisonType()) {
        case EQUAL:
            switch(quantifiedComparison.getQuantifier()) {
                case ALL:
                    return planQuantifiedApplyNode(subPlan, quantifiedComparison, correlationAllowed);
                case ANY:
                case SOME:
                    // A = ANY B <=> A IN B
                    InPredicate inPredicate = new InPredicate(quantifiedComparison.getValue(), quantifiedComparison.getSubquery());
                    subPlan = appendInPredicateApplyNode(subPlan, inPredicate, correlationAllowed);
                    subPlan.getTranslations().put(quantifiedComparison, subPlan.translate(inPredicate));
                    return subPlan;
            }
            break;
        case NOT_EQUAL:
            switch(quantifiedComparison.getQuantifier()) {
                case ALL:
                    // A <> ALL B <=> !(A IN B) <=> !(A = ANY B)
                    QuantifiedComparisonExpression rewrittenAny = new QuantifiedComparisonExpression(EQUAL, Quantifier.ANY, quantifiedComparison.getValue(), quantifiedComparison.getSubquery());
                    Expression notAny = new NotExpression(rewrittenAny);
                    // "A <> ALL B" is equivalent to "NOT (A = ANY B)" so add a rewrite for the initial quantifiedComparison to notAny
                    subPlan.getTranslations().addIntermediateMapping(quantifiedComparison, notAny);
                    // now plan "A = ANY B" part by calling ourselves for rewrittenAny
                    return appendQuantifiedComparisonApplyNode(subPlan, rewrittenAny, correlationAllowed);
                case ANY:
                case SOME:
                    // A <> ANY B <=> min B <> max B || A <> min B <=> !(min B = max B && A = min B) <=> !(A = ALL B)
                    QuantifiedComparisonExpression rewrittenAll = new QuantifiedComparisonExpression(EQUAL, QuantifiedComparisonExpression.Quantifier.ALL, quantifiedComparison.getValue(), quantifiedComparison.getSubquery());
                    Expression notAll = new NotExpression(rewrittenAll);
                    // "A <> ANY B" is equivalent to "NOT (A = ALL B)" so add a rewrite for the initial quantifiedComparison to notAll
                    subPlan.getTranslations().addIntermediateMapping(quantifiedComparison, notAll);
                    // now plan "A = ALL B" part by calling ourselves for rewrittenAll
                    return appendQuantifiedComparisonApplyNode(subPlan, rewrittenAll, correlationAllowed);
            }
            break;
        case LESS_THAN:
        case LESS_THAN_OR_EQUAL:
        case GREATER_THAN:
        case GREATER_THAN_OR_EQUAL:
            return planQuantifiedApplyNode(subPlan, quantifiedComparison, correlationAllowed);
    }
    // all cases are checked, so this exception should never be thrown
    throw new IllegalArgumentException(format("Unexpected quantified comparison: '%s %s'", quantifiedComparison.getComparisonType().getValue(), quantifiedComparison.getQuantifier()));
}

Example 4 with NotExpression

use of com.facebook.presto.sql.tree.NotExpression in project presto by prestodb.

the class TestExpressionUtils method testNormalize.

@Test
public void testNormalize() throws Exception {
    assertNormalize(new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1")));
    assertNormalize(new IsNullPredicate(name("a")));
    assertNormalize(new NotExpression(new LikePredicate(name("a"), new StringLiteral("x%"), null)));
    assertNormalize(new NotExpression(new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1"))), new ComparisonExpression(NOT_EQUAL, name("a"), new LongLiteral("1")));
    assertNormalize(new NotExpression(new ComparisonExpression(NOT_EQUAL, name("a"), new LongLiteral("1"))), new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1")));
    // Cannot normalize IS DISTINCT FROM yet
    assertNormalize(new NotExpression(new ComparisonExpression(IS_DISTINCT_FROM, name("a"), new LongLiteral("1"))));
}

Example 5 with NotExpression

use of com.facebook.presto.sql.tree.NotExpression in project presto by prestodb.

the class DomainTranslator method toPredicate.

private static Expression toPredicate(Domain domain, SymbolReference reference) {
    if (domain.getValues().isNone()) {
        return domain.isNullAllowed() ? new IsNullPredicate(reference) : FALSE_LITERAL;
    }
    if (domain.getValues().isAll()) {
        return domain.isNullAllowed() ? TRUE_LITERAL : new NotExpression(new IsNullPredicate(reference));
    }
    List<Expression> disjuncts = new ArrayList<>();
    disjuncts.addAll(domain.getValues().getValuesProcessor().transform(ranges -> extractDisjuncts(domain.getType(), ranges, reference), discreteValues -> extractDisjuncts(domain.getType(), discreteValues, reference), allOrNone -> {
        throw new IllegalStateException("Case should not be reachable");
    }));
    // Add nullability disjuncts
    if (domain.isNullAllowed()) {
        disjuncts.add(new IsNullPredicate(reference));
    }
    return combineDisjunctsWithDefault(disjuncts, TRUE_LITERAL);
}