Package com.facebook.presto.sql.tree

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

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        {
            Expression value = treeRewriter.rewrite(node.getExpression(), context);

            switch (node.getField()) {
                case YEAR:
                    return new FunctionCall(new QualifiedName("year"), ImmutableList.of(value));
                case QUARTER:
                    return new FunctionCall(new QualifiedName("quarter"), ImmutableList.of(value));
                case MONTH:
                    return new FunctionCall(new QualifiedName("month"), ImmutableList.of(value));
                case WEEK:
                    return new FunctionCall(new QualifiedName("week"), ImmutableList.of(value));
                case DAY:
                case DAY_OF_MONTH:
                    return new FunctionCall(new QualifiedName("day"), ImmutableList.of(value));
                case DAY_OF_WEEK:
                case DOW:
                    return new FunctionCall(new QualifiedName("day_of_week"), ImmutableList.of(value));
                case DAY_OF_YEAR:
                case DOY:
                    return new FunctionCall(new QualifiedName("day_of_year"), ImmutableList.of(value));
                case HOUR:
                    return new FunctionCall(new QualifiedName("hour"), ImmutableList.of(value));
                case MINUTE:
                    return new FunctionCall(new QualifiedName("minute"), ImmutableList.of(value));
                case SECOND:
                    return new FunctionCall(new QualifiedName("second"), ImmutableList.of(value));
                case TIMEZONE_MINUTE:
                    return new FunctionCall(new QualifiedName("timezone_minute"), ImmutableList.of(value));
                case TIMEZONE_HOUR:
                    return new FunctionCall(new QualifiedName("timezone_hour"), ImmutableList.of(value));
            }

            throw new UnsupportedOperationException("not yet implemented: " + node.getField());
        }
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                return true;
            }

            if (argument instanceof QualifiedNameReference) {
                QualifiedNameReference qualifiedNameReference = (QualifiedNameReference) argument;
                QualifiedName qualifiedName = qualifiedNameReference.getName();
                Symbol argumentSymbol = Symbol.fromQualifiedName(qualifiedName);
                Expression argumentExpression = projectNode.getOutputMap().get(argumentSymbol);
                return (argumentExpression instanceof Literal) && (!(argumentExpression instanceof NullLiteral));
            }
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                FieldOrExpression orderByExpression = null;
                if (expression instanceof QualifiedNameReference && !((QualifiedNameReference) expression).getName().getPrefix().isPresent()) {
                    // if this is a simple name reference, try to resolve against output columns

                    QualifiedName name = ((QualifiedNameReference) expression).getName();
                    Collection<Expression> expressions = byAlias.get(name);
                    if (expressions.size() > 1) {
                        throw new SemanticException(AMBIGUOUS_ATTRIBUTE, expression, "'%s' in ORDER BY is ambiguous", name.getSuffix());
                    }
                    else if (expressions.size() == 1) {
                        orderByExpression = new FieldOrExpression(Iterables.getOnlyElement(expressions));
                    }
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    protected TupleDescriptor visitShowTables(ShowTables showTables, AnalysisContext context)
    {
        String catalogName = session.getCatalog();
        String schemaName = session.getSchema();

        QualifiedName schema = showTables.getSchema();
        if (schema != null) {
            List<String> parts = schema.getParts();
            if (parts.size() > 2) {
                throw new SemanticException(INVALID_SCHEMA_NAME, showTables, "too many parts in schema name: %s", schema);
            }
            if (parts.size() == 2) {
                catalogName = parts.get(0);
            }
            schemaName = schema.getSuffix();
        }

        // TODO: throw SemanticException if schema does not exist

        Expression predicate = equal(nameReference("table_schema"), new StringLiteral(schemaName));
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                FieldOrExpression orderByExpression = null;
                if (expression instanceof QualifiedNameReference && !((QualifiedNameReference) expression).getName().getPrefix().isPresent()) {
                    // if this is a simple name reference, try to resolve against output columns

                    QualifiedName name = ((QualifiedNameReference) expression).getName();
                    Collection<Expression> expressions = byAlias.get(name);
                    if (expressions.size() > 1) {
                        throw new SemanticException(AMBIGUOUS_ATTRIBUTE, expression, "'%s' in ORDER BY is ambiguous", name.getSuffix());
                    }
                    else if (expressions.size() == 1) {
                        orderByExpression = new FieldOrExpression(Iterables.getOnlyElement(expressions));
                    }
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        }

        if (object instanceof Double) {
            Double value = (Double) object;
            if (value.isNaN()) {
                return new FunctionCall(new QualifiedName("nan"), ImmutableList.<Expression>of());
            }
            else if (value == Double.NEGATIVE_INFINITY) {
                return new NegativeExpression(new FunctionCall(new QualifiedName("infinity"), ImmutableList.<Expression>of()));
            }
            else if (value == Double.POSITIVE_INFINITY) {
                return new FunctionCall(new QualifiedName("infinity"), ImmutableList.<Expression>of());
            }
            else {
                return new DoubleLiteral(object.toString());
            }
        }
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    }

    @Override
    protected TypedByteCodeNode visitCurrentTime(CurrentTime node, CompilerContext context)
    {
        return visitFunctionCall(new FunctionCall(new QualifiedName("now"), ImmutableList.<Expression>of()), context);
    }
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        if (node.getField() == Extract.Field.TIMEZONE_HOUR || node.getField() == Extract.Field.TIMEZONE_MINUTE) {
            // TODO: we assume all times are UTC for now
            return typedByteCodeNode(new Block(context).append(expression.getNode()).pop(long.class).push(0L), long.class);
        }

        QualifiedName functionName = QualifiedName.of(node.getField().name().toLowerCase());
        FunctionBinding functionBinding = bootstrapFunctionBinder.bindFunction(functionName, getSessionByteCode, ImmutableList.of(expression));
        return visitFunctionBinding(context, functionBinding, node.toString());
    }
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    protected TupleDescriptor visitShowTables(ShowTables showTables, AnalysisContext context)
    {
        String catalogName = session.getCatalog();
        String schemaName = session.getSchema();

        QualifiedName schema = showTables.getSchema();
        if (schema != null) {
            List<String> parts = schema.getParts();
            if (parts.size() > 2) {
                throw new SemanticException(INVALID_SCHEMA_NAME, showTables, "too many parts in schema name: %s", schema);
            }
            if (parts.size() == 2) {
                catalogName = parts.get(0);
            }
            schemaName = schema.getSuffix();
        }

        // TODO: throw SemanticException if schema does not exist

        Expression predicate = equal(nameReference("table_schema"), new StringLiteral(schemaName));
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Related Classes of com.facebook.presto.sql.tree.QualifiedName

  • com.facebook.presto.metadata.QualifiedTableName
  • com.facebook.presto.metadata.TestFunctionRegistry
  • com.facebook.presto.operator.aggregation.TestDoubleStdDevAggregation
  • com.facebook.presto.operator.aggregation.TestDoubleStdDevPopAggregation
  • com.facebook.presto.operator.aggregation.TestDoubleVarianceAggregation
  • com.facebook.presto.operator.aggregation.TestDoubleVariancePopAggregation
  • com.facebook.presto.operator.aggregation.TestLongStdDevAggregation
  • com.facebook.presto.operator.aggregation.TestLongStdDevPopAggregation
  • com.facebook.presto.operator.aggregation.TestLongVarianceAggregation
  • com.facebook.presto.operator.aggregation.TestLongVariancePopAggregation
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