ClickHouse

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#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/AggregateFunctionStatisticsSimple.h>
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namespace DB
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{
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template <typename T1, typename T2> using AggregateFunctionCorr = AggregateFunctionVarianceSimple<StatFuncTwoArg<T1, T2, CorrMoments>>;
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void registerAggregateFunctionsStatisticsCorr(AggregateFunctionFactory & factory)
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{
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    factory.registerFunction("corr", createAggregateFunctionStatisticsBinary<AggregateFunctionCorr, StatisticsFunctionKind::corr>, AggregateFunctionFactory::CaseInsensitive);
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}
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}
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