Examples with RowNumberNode io.prestosql.sql.planner.plan.RowNumberNode used on opensource projects

Example 1 with RowNumberNode

use of io.prestosql.sql.planner.plan.RowNumberNode in project hetu-core by openlookeng.

the class ImplementOffset method apply.

@Override
public Result apply(OffsetNode parent, Captures captures, Context context) {
    Symbol rowNumberSymbol = context.getSymbolAllocator().newSymbol("row_number", BIGINT);
    RowNumberNode rowNumberNode = new RowNumberNode(context.getIdAllocator().getNextId(), parent.getSource(), ImmutableList.of(), rowNumberSymbol, Optional.empty(), Optional.empty());
    FilterNode filterNode = new FilterNode(context.getIdAllocator().getNextId(), rowNumberNode, castToRowExpression(new ComparisonExpression(ComparisonExpression.Operator.GREATER_THAN, toSymbolReference(rowNumberSymbol), new GenericLiteral("BIGINT", Long.toString(parent.getCount())))));
    ProjectNode projectNode = new ProjectNode(context.getIdAllocator().getNextId(), filterNode, AssignmentUtils.identityAsSymbolReferences(parent.getOutputSymbols()));
    return Result.ofPlanNode(projectNode);
}

Example 2 with RowNumberNode

use of io.prestosql.sql.planner.plan.RowNumberNode in project hetu-core by openlookeng.

the class RowNumberMatcher method detailMatches.

@Override
public MatchResult detailMatches(PlanNode node, StatsProvider stats, Session session, Metadata metadata, SymbolAliases symbolAliases) {
    checkState(shapeMatches(node), "Plan testing framework error: shapeMatches returned false in detailMatches in %s", this.getClass().getName());
    RowNumberNode rowNumberNode = (RowNumberNode) node;
    if (partitionBy.isPresent()) {
        List<Symbol> expected = partitionBy.get().stream().map(alias -> alias.toSymbol(symbolAliases)).collect(toImmutableList());
        if (!expected.equals(rowNumberNode.getPartitionBy())) {
            return NO_MATCH;
        }
    }
    if (rowNumberSymbol.isPresent()) {
        Symbol expected = rowNumberSymbol.get().toSymbol(symbolAliases);
        if (!expected.equals(rowNumberNode.getRowNumberSymbol())) {
            return NO_MATCH;
        }
    }
    if (maxRowCountPerPartition.isPresent()) {
        if (!maxRowCountPerPartition.get().equals(rowNumberNode.getMaxRowCountPerPartition())) {
            return NO_MATCH;
        }
    }
    if (hashSymbol.isPresent()) {
        Optional<Symbol> expected = hashSymbol.get().map(alias -> alias.toSymbol(symbolAliases));
        if (!expected.equals(rowNumberNode.getHashSymbol())) {
            return NO_MATCH;
        }
    }
    return match();
}