Package com.facebook.presto.operator.window

Examples of com.facebook.presto.operator.window.WindowFunction


        private boolean isRowNumberFunction(WindowNode node)
        {
            checkArgument(node.getWindowFunctions().size() == 1);
            Symbol symbol = Iterables.getOnlyElement(node.getWindowFunctions().entrySet()).getKey();
            Signature signature = node.getSignatures().get(symbol);
            WindowFunction function = metadata.getExactFunction(signature).bindWindowFunction(ImmutableList.<Integer>of()).createWindowFunction();
            return function instanceof RowNumberFunction;
        }
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