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

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

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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 = new LinkedHashMap<>();
            for (Map.Entry<Symbol, Expression> entry : node.getOutputMap().entrySet()) {
                Expression expression = canonicalize(entry.getValue());
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        }

        @Override
        public PlanNode rewriteOutput(OutputNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);

            List<Symbol> canonical = Lists.transform(node.getOutputSymbols(), canonicalizeFunction());
            return new OutputNode(node.getId(), source, node.getColumnNames(), canonical);
        }
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        }

        @Override
        public PlanNode rewriteTopN(TopNNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);

            ImmutableList.Builder<Symbol> symbols = ImmutableList.builder();
            ImmutableMap.Builder<Symbol, SortOrder> orderings = ImmutableMap.builder();
            for (Symbol symbol : node.getOrderBy()) {
                Symbol canonical = canonicalize(symbol);
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        }

        @Override
        public PlanNode rewriteSort(SortNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);

            ImmutableList.Builder<Symbol> symbols = ImmutableList.builder();
            ImmutableMap.Builder<Symbol, SortOrder> orderings = ImmutableMap.builder();
            for (Symbol symbol : node.getOrderBy()) {
                Symbol canonical = canonicalize(symbol);
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        }

        @Override
        public PlanNode rewriteJoin(JoinNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode left = planRewriter.rewrite(node.getLeft(), context);
            PlanNode right = planRewriter.rewrite(node.getRight(), context);

            return new JoinNode(node.getId(), node.getType(), left, right, canonicalizeJoinCriteria(node.getCriteria()));
        }
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        }

        @Override
        public PlanNode rewriteSemiJoin(SemiJoinNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);
            PlanNode filteringSource = planRewriter.rewrite(node.getFilteringSource(), context);

            return new SemiJoinNode(node.getId(), source, filteringSource, canonicalize(node.getSourceJoinSymbol()), canonicalize(node.getFilteringSourceJoinSymbol()), canonicalize(node.getSemiJoinOutput()));
        }
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        }

        @Override
        public PlanNode rewriteTableWriter(TableWriterNode node, Void context, PlanRewriter<Void> planRewriter)
        {
            PlanNode source = planRewriter.rewrite(node.getSource(), context);

            return new TableWriterNode(node.getId(), source, node.getTarget(), canonicalize(node.getColumns()), node.getColumnNames(), canonicalize(node.getOutputSymbols()));
        }
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        }

        @Override
        public PlanNode rewriteNode(PlanNode node, Expression inheritedPredicate, PlanRewriter<Expression> planRewriter)
        {
            PlanNode rewrittenNode = planRewriter.defaultRewrite(node, BooleanLiteral.TRUE_LITERAL);
            if (!inheritedPredicate.equals(BooleanLiteral.TRUE_LITERAL)) {
                // Drop in a FilterNode b/c we cannot push our predicate down any further
                rewrittenNode = new FilterNode(idAllocator.getNextId(), rewrittenNode, inheritedPredicate);
            }
            return rewrittenNode;
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        {
            boolean modified = false;
            ImmutableList.Builder<PlanNode> builder = ImmutableList.builder();
            for (int i = 0; i < node.getSources().size(); i++) {
                Expression sourcePredicate = ExpressionTreeRewriter.rewriteWith(new ExpressionSymbolInliner(node.sourceSymbolMap(i)), inheritedPredicate);
                PlanNode source = node.getSources().get(i);
                PlanNode rewrittenSource = planRewriter.rewrite(source, sourcePredicate);
                if (rewrittenSource != source) {
                    modified = true;
                }
                builder.add(rewrittenSource);
            }
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                    break;
                default:
                    throw new UnsupportedOperationException("Unsupported join type: " + node.getType());
            }

            PlanNode leftSource = planRewriter.rewrite(node.getLeft(), leftPredicate);
            PlanNode rightSource = planRewriter.rewrite(node.getRight(), rightPredicate);

            PlanNode output = node;
            if (leftSource != node.getLeft() || rightSource != node.getRight() || !newJoinPredicate.equals(joinPredicate)) {
                List<JoinNode.EquiJoinClause> criteria = node.getCriteria();

                // Rewrite criteria and add projections if there is a new join predicate
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Related Classes of com.facebook.presto.sql.planner.plan.PlanNode

  • com.facebook.presto.sql.planner.DistributedLogicalPlanner$Visitor
  • com.facebook.presto.sql.planner.LocalExecutionPlanner$Visitor
  • com.facebook.presto.sql.planner.LogicalPlanner
  • com.facebook.presto.sql.planner.optimizations.CanonicalizeExpressions$Rewriter
  • com.facebook.presto.sql.planner.optimizations.CountConstantOptimizer$Rewriter
  • com.facebook.presto.sql.planner.optimizations.ImplementSampleAsFilter$Rewriter
  • com.facebook.presto.sql.planner.optimizations.IndexJoinOptimizer$IndexSourceRewriter
  • com.facebook.presto.sql.planner.optimizations.IndexJoinOptimizer$Rewriter
  • com.facebook.presto.sql.planner.optimizations.LimitPushDown$Rewriter
  • com.facebook.presto.sql.planner.optimizations.MaterializeSamplePullUp$Rewriter
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