Package com.facebook.presto.sql.tree

Examples of com.facebook.presto.sql.tree.LongLiteral

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            Object optimizedExpression = expressionOptimizer(canonicalized, metadata, session, analyzer.getExpressionTypes()).optimize(NoOpSymbolResolver.INSTANCE);

            if (!(optimizedExpression instanceof Expression) && optimizedExpression instanceof Boolean) {
                // If the JoinOn clause evaluates to a boolean expression, simulate a cross join by adding the relevant redundant expression
                if (optimizedExpression.equals(Boolean.TRUE)) {
                    optimizedExpression = new ComparisonExpression(ComparisonExpression.Type.EQUAL, new LongLiteral("0"), new LongLiteral("0"));
                }
                else {
                    optimizedExpression = new ComparisonExpression(ComparisonExpression.Type.EQUAL, new LongLiteral("0"), new LongLiteral("1"));
                }
            }

            if (!(optimizedExpression instanceof Expression)) {
                throw new SemanticException(TYPE_MISMATCH, node, "Join clause must be a boolean expression");
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        if (object == null) {
            return new Cast(new NullLiteral(), type.getName());
        }

        if (type.equals(BIGINT)) {
            return new LongLiteral(object.toString());
        }

        if (type.equals(DOUBLE)) {
            Double value = (Double) object;
            if (value.isNaN()) {
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    }

    private Expression oneIfNull(Optional<Symbol> symbol)
    {
        if (symbol.isPresent()) {
            return new CoalesceExpression(new QualifiedNameReference(symbol.get().toQualifiedName()), new LongLiteral("1"));
        }
        else {
            return new LongLiteral("1");
        }
    }
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        ImmutableMap.Builder<Symbol, Expression> projections = ImmutableMap.builder();
        for (Symbol symbol : subPlan.getOutputSymbols()) {
            Expression expression = new QualifiedNameReference(symbol.toQualifiedName());
            projections.put(symbol, expression);
        }
        Expression one = new LongLiteral("1");

        Symbol sampleWeightSymbol = symbolAllocator.newSymbol("$sampleWeight", BIGINT);
        projections.put(sampleWeightSymbol, one);
        ProjectNode projectNode = new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build());
        return new RelationPlan(projectNode, subPlan.getDescriptor(), projectNode.getOutputSymbols(), Optional.of(sampleWeightSymbol));
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    @Test
    public void testArrayConstructor()
            throws Exception
    {
        assertExpression("ARRAY []", new ArrayConstructor(ImmutableList.<Expression>of()));
        assertExpression("ARRAY [1, 2]", new ArrayConstructor(ImmutableList.<Expression>of(new LongLiteral("1"), new LongLiteral("2"))));
        assertExpression("ARRAY [1.0, 2.5]", new ArrayConstructor(ImmutableList.<Expression>of(new DoubleLiteral("1.0"), new DoubleLiteral("2.5"))));
        assertExpression("ARRAY ['hi']", new ArrayConstructor(ImmutableList.<Expression>of(new StringLiteral("hi"))));
        assertExpression("ARRAY ['hi', 'hello']", new ArrayConstructor(ImmutableList.<Expression>of(new StringLiteral("hi"), new StringLiteral("hello"))));
    }
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    @Test
    public void testArraySubscript()
            throws Exception
    {
        assertExpression("ARRAY [1, 2][1]", new SubscriptExpression(
                        new ArrayConstructor(ImmutableList.<Expression>of(new LongLiteral("1"), new LongLiteral("2"))),
                        new LongLiteral("1"))
                );
        try {
            assertExpression("CASE WHEN TRUE THEN ARRAY[1,2] END[1]", null);
            fail();
        }
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        assertCast("foo");
    }

    public static void assertCast(String type)
    {
        assertExpression("cast(123 as " + type + ")", new Cast(new LongLiteral("123"), type));
    }
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    @Test
    public void testPositiveSign()
            throws Exception
    {
        assertExpression("9", new LongLiteral("9"));

        assertExpression("+9", new LongLiteral("9"));
        assertExpression("++9", new LongLiteral("9"));
        assertExpression("+++9", new LongLiteral("9"));

        assertExpression("+9", new LongLiteral("9"));
        assertExpression("+ +9", new LongLiteral("9"));
        assertExpression("+ + +9", new LongLiteral("9"));

        assertExpression("+ 9", new LongLiteral("9"));
        assertExpression("+ + 9", new LongLiteral("9"));
        assertExpression("+ + + 9", new LongLiteral("9"));
    }
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    }

    @Test
    public void testNegativeSign()
    {
        Expression expression = new LongLiteral("9");
        assertExpression("9", expression);

        expression = new NegativeExpression(expression);
        assertExpression("-9", expression);
        assertExpression("- 9", expression);
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    }

    private static QuerySpecification createSelect123()
    {
        return new QuerySpecification(
                new Select(false, ImmutableList.<SelectItem>of(new SingleColumn(new LongLiteral("123")))),
                null,
                Optional.<Expression>absent(),
                ImmutableList.<Expression>of(),
                Optional.<Expression>absent(),
                ImmutableList.<SortItem>of(),
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  • com.facebook.presto.sql.planner.ExpressionInterpreter
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  • com.facebook.presto.sql.planner.optimizations.PredicatePushDown$Rewriter
  • com.facebook.presto.sql.planner.optimizations.WindowFilterPushDown$Rewriter
  • com.facebook.presto.sql.planner.RelationPlanner
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