Package com.facebook.presto.sql.tree

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

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    {
        Expression expression = new IfExpression(
                equal(nameReference(column), new StringLiteral("YES")),
                BooleanLiteral.TRUE_LITERAL,
                BooleanLiteral.FALSE_LITERAL);
        return new SingleColumn(expression, alias);
    }
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            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, Type.fromRaw(column.getType()).getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }

        Query query = new Query(
                Optional.<With>absent(),
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        Query query = new Query(
                Optional.<With>absent(),
                new QuerySpecification(
                        selectList(
                                new SingleColumn(new StringLiteral(queryPlan), "Query Plan")),
                        null,
                        Optional.<Expression>absent(),
                        ImmutableList.<Expression>of(),
                        Optional.<Expression>absent(),
                        ImmutableList.<SortItem>of(),
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                for (Field field : inputTupleDescriptor.resolveFieldsWithPrefix(starPrefix)) {
                    outputFields.add(Field.newUnqualified(field.getName(), field.getType()));
                }
            }
            else if (item instanceof SingleColumn) {
                SingleColumn column = (SingleColumn) item;

                Optional<String> alias = column.getAlias();
                if (!alias.isPresent() && column.getExpression() instanceof QualifiedNameReference) {
                    alias = Optional.of(((QualifiedNameReference) column.getExpression()).getName().getSuffix());
                }

                outputFields.add(Field.newUnqualified(alias, analysis.getType(column.getExpression()))); // TODO don't use analysis as a side-channel. Use outputExpressions to look up the type
            }
            else {
                throw new IllegalArgumentException("Unsupported SelectItem type: " + item.getClass().getName());
            }
        }
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                for (int fieldIndex : fields) {
                    outputExpressionBuilder.add(new FieldOrExpression(fieldIndex));
                }
            }
            else if (item instanceof SingleColumn) {
                SingleColumn column = (SingleColumn) item;
                ExpressionAnalysis expressionAnalysis = Analyzer.analyzeExpression(session, metadata, tupleDescriptor, analysis, context, column.getExpression());
                analysis.addInPredicates(node, expressionAnalysis.getSubqueryInPredicates());
                outputExpressionBuilder.add(new FieldOrExpression(column.getExpression()));
            }
            else {
                throw new IllegalArgumentException("Unsupported SelectItem type: " + item.getClass().getName());
            }
        }
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                for (Field field : inputTupleDescriptor.resolveFieldsWithPrefix(starPrefix)) {
                    outputFields.add(Field.newUnqualified(field.getName(), field.getType()));
                }
            }
            else if (item instanceof SingleColumn) {
                SingleColumn column = (SingleColumn) item;

                Optional<String> alias = column.getAlias();
                if (!alias.isPresent() && column.getExpression() instanceof QualifiedNameReference) {
                    alias = Optional.of(((QualifiedNameReference) column.getExpression()).getName().getSuffix());
                }

                outputFields.add(Field.newUnqualified(alias, analysis.getType(column.getExpression()))); // TODO don't use analysis as a side-channel. Use outputExpressions to look up the type
            }
            else {
                throw new IllegalArgumentException("Unsupported SelectItem type: " + item.getClass().getName());
            }
        }
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                for (int fieldIndex : fields) {
                    outputExpressionBuilder.add(new FieldOrExpression(fieldIndex));
                }
            }
            else if (item instanceof SingleColumn) {
                SingleColumn column = (SingleColumn) item;
                ExpressionAnalysis expressionAnalysis = Analyzer.analyzeExpression(session, metadata, tupleDescriptor, analysis, context, column.getExpression());
                analysis.addInPredicates(node, expressionAnalysis.getSubqueryInPredicates());
                outputExpressionBuilder.add(new FieldOrExpression(column.getExpression()));
            }
            else {
                throw new IllegalArgumentException("Unsupported SelectItem type: " + item.getClass().getName());
            }
        }
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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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                for (Field field : inputTupleDescriptor.resolveFieldsWithPrefix(starPrefix)) {
                    outputFields.add(Field.newUnqualified(field.getName(), field.getType()));
                }
            }
            else if (item instanceof SingleColumn) {
                SingleColumn column = (SingleColumn) item;

                Optional<String> alias = column.getAlias();
                if (!alias.isPresent() && column.getExpression() instanceof QualifiedNameReference) {
                    alias = Optional.of(((QualifiedNameReference) column.getExpression()).getName().getSuffix());
                }

                outputFields.add(Field.newUnqualified(alias, analysis.getType(column.getExpression()))); // TODO don't use analysis as a side-channel. Use outputExpressions to look up the type
            }
            else {
                throw new IllegalArgumentException("Unsupported SelectItem type: " + item.getClass().getName());
            }
        }
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        return new QualifiedNameReference(QualifiedName.of(name));
    }

    public static SelectItem unaliasedName(String name)
    {
        return new SingleColumn(nameReference(name));
    }
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Related Classes of com.facebook.presto.sql.tree.SingleColumn

  • com.facebook.presto.sql.analyzer.StatementAnalyzer
  • com.facebook.presto.sql.analyzer.TupleAnalyzer
  • com.facebook.presto.sql.parser.TestSqlParser
  • com.facebook.presto.sql.QueryUtil
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