Package com.facebook.presto.sql.planner.plan

Examples of com.facebook.presto.sql.planner.plan.ProjectNode

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            Expression rewritten = subPlan.rewrite(fieldOrExpression);
            projections.put(symbol, rewritten);
            translations.put(fieldOrExpression, symbol);
        }

        return new PlanBuilder(translations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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        for (Symbol symbol : alreadyCoerced) {
            projections.put(symbol, new QualifiedNameReference(symbol.toQualifiedName()));
        }

        return new PlanBuilder(translations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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        // Now append the new translations into the TranslationMap
        for (Map.Entry<Symbol, Expression> entry : newTranslations.build().entrySet()) {
            translations.put(entry.getValue(), entry.getKey());
        }

        return new PlanBuilder(translations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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        // Now append the new translations into the TranslationMap
        for (Map.Entry<Symbol, Expression> entry : newTranslations.build().entrySet()) {
            translations.put(entry.getValue(), entry.getKey());
        }

        return new PlanBuilder(translations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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            projections.put(symbol, subPlan.rewrite(fieldOrExpression));
            outputTranslations.put(fieldOrExpression, symbol);
        }

        return new PlanBuilder(outputTranslations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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        // Now append the new translations into the TranslationMap
        for (Map.Entry<Symbol, Expression> entry : newTranslations.build().entrySet()) {
            translations.put(entry.getValue(), entry.getKey());
        }

        return new PlanBuilder(translations, new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), projections.build()));
    }
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        @Override
        public PlanNode rewriteProject(ProjectNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);
            Map<Symbol, Expression> assignments = ImmutableMap.copyOf(Maps.transformValues(node.getOutputMap(), simplifyExpressionFunction()));
            return new ProjectNode(node.getId(), source, assignments);
        }
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                if (!assignments.containsKey(canonical)) {
                    assignments.put(canonical, expression);
                }
            }

            return new ProjectNode(node.getId(), source, assignments);
        }
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        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);

            if (node.getOutputSymbols().size() != source.getOutputSymbols().size()) {
                // Can't get rid of this projection. It constrains the output tuple from the underlying operator
                return new ProjectNode(node.getId(), source, node.getOutputMap());
            }

            boolean canElide = true;
            for (Map.Entry<Symbol, Expression> entry : node.getOutputMap().entrySet()) {
                Expression expression = entry.getValue();
                Symbol symbol = entry.getKey();
                if (!(expression instanceof QualifiedNameReference && ((QualifiedNameReference) expression).getName().equals(symbol.toQualifiedName()))) {
                    canElide = false;
                    break;
                }
            }

            if (canElide) {
                return source;
            }

            return new ProjectNode(node.getId(), source, node.getOutputMap());
        }
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                }
            }

            PlanNode source = planRewriter.rewrite(node.getSource(), expectedInputs.build());

            return new ProjectNode(node.getId(), source, builder.build());
        }
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Related Classes of com.facebook.presto.sql.planner.plan.ProjectNode

  • com.facebook.presto.sql.planner.DistributedLogicalPlanner$Visitor
  • com.facebook.presto.sql.planner.optimizations.CanonicalizeExpressions$Rewriter
  • com.facebook.presto.sql.planner.optimizations.CountConstantOptimizer$Rewriter
  • com.facebook.presto.sql.planner.optimizations.LimitPushDown$Rewriter
  • com.facebook.presto.sql.planner.optimizations.MaterializeSamplePullUp$Rewriter
  • com.facebook.presto.sql.planner.optimizations.MergeProjections$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PredicatePushDown$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PruneRedundantProjections$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PruneUnreferencedOutputs$Rewriter
  • com.facebook.presto.sql.planner.optimizations.SimplifyExpressions$Rewriter
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