Package com.facebook.presto.sql.tree

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

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        }

        private static Expression equalsExpression(Symbol symbol1, Symbol symbol2)
        {
            return new ComparisonExpression(ComparisonExpression.Type.EQUAL,
                    new QualifiedNameReference(symbol1.toQualifiedName()),
                    new QualifiedNameReference(symbol2.toQualifiedName()));
        }
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                    .optimize(new SymbolResolver()
                    {
                        @Override
                        public Object getValue(Symbol symbol)
                        {
                            return nullSymbols.contains(symbol) ? null : new QualifiedNameReference(symbol.toQualifiedName());
                        }
                    });
        }
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            Expression filterExpression = node.getPredicate();

            List<Expression> projectionExpressions = new ArrayList<>();
            for (int i = 0; i < node.getOutputSymbols().size(); i++) {
                Symbol symbol = node.getOutputSymbols().get(i);
                projectionExpressions.add(new QualifiedNameReference(symbol.toQualifiedName()));
            }

            List<Symbol> outputSymbols = node.getOutputSymbols();

            return visitScanFilterAndProject(context, sourceNode, filterExpression, projectionExpressions, outputSymbols);
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        ImmutableMap.Builder<Symbol, Expression> projections = ImmutableMap.builder();

        // add an identity projection for underlying plan
        for (Symbol symbol : subPlan.getRoot().getOutputSymbols()) {
            Expression expression = new QualifiedNameReference(symbol.toQualifiedName());
            projections.put(symbol, expression);
        }

        ImmutableMap.Builder<Symbol, Expression> newTranslations = ImmutableMap.builder();
        for (Expression expression : expressions) {
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            Expression filterExpression = node.getPredicate();

            List<Expression> projectionExpressions = new ArrayList<>();
            for (int i = 0; i < node.getOutputSymbols().size(); i++) {
                Symbol symbol = node.getOutputSymbols().get(i);
                projectionExpressions.add(new QualifiedNameReference(symbol.toQualifiedName()));
            }

            List<Symbol> outputSymbols = node.getOutputSymbols();

            return visitScanFilterAndProject(context, sourceNode, filterExpression, projectionExpressions, outputSymbols);
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                        return MILLISECONDS.toSeconds(dateTime.getMillis());
                    case "boundpattern":
                        return Slices.wrappedBuffer("%el%".getBytes(UTF_8));
                }

                return new QualifiedNameReference(symbol.toQualifiedName());
            }
        });
    }
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            {
                // convert expression to qualified name reference (containing a symbol) if rewrite registered
                Expression rewrittenExpression;
                Symbol symbol = expressionMappings.get(node);
                if (symbol != null) {
                    rewrittenExpression = new QualifiedNameReference(symbol.toQualifiedName());
                }
                else {
                    rewrittenExpression = treeRewriter.defaultRewrite(node, context);
                }
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        if (fieldOrExpression.isFieldReference()) {
            int fieldIndex = fieldOrExpression.getFieldIndex();
            Symbol symbol = fieldSymbols[fieldIndex];
            Preconditions.checkState(symbol != null, "No mapping for field '%s'", fieldIndex);

            return new QualifiedNameReference(symbol.toQualifiedName());
        }
        else {
            return rewrite(fieldOrExpression.getExpression());
        }
    }
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                Preconditions.checkState(fieldIndex != null, "No field mapping for name '%s'", name);

                Symbol symbol = rewriteBase.getSymbol(fieldIndex);
                Preconditions.checkState(symbol != null, "No symbol mapping for name '%s' (%s)", name, fieldIndex);

                Expression rewrittenExpression = new QualifiedNameReference(symbol.toQualifiedName());

                // cast expression if coercion is registered
                Type coercion = analysis.getCoercion(node);
                if (coercion != null) {
                    rewrittenExpression = new Cast(rewrittenExpression, coercion.getName());
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        }

        private static Expression equalsExpression(Symbol symbol1, Symbol symbol2)
        {
            return new ComparisonExpression(ComparisonExpression.Type.EQUAL,
                    new QualifiedNameReference(symbol1.toQualifiedName()),
                    new QualifiedNameReference(symbol2.toQualifiedName()));
        }
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Related Classes of com.facebook.presto.sql.tree.QualifiedNameReference

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  • com.facebook.presto.sql.planner.LocalExecutionPlanner$Visitor
  • com.facebook.presto.sql.planner.LookupSymbolResolver
  • com.facebook.presto.sql.planner.NoOpSymbolResolver
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