Function getKeyExpressions

src/processor/map/map_aggregate.cpp:71–80

}

static expression_vector getKeyExpressions(const expression_vector& expressions,
    const Schema& schema, bool isFlat) {
    expression_vector result;
    for (auto& expression : expressions) {
        if (schema.getGroup(schema.getGroupPos(*expression))->isFlat() == isFlat) {
            result.emplace_back(expression);
        }
    }
    return result;
}

static std::vector<AggregateFunction> getAggFunctions(const expression_vector& aggregates) {
    std::vector<AggregateFunction> aggregateFunctions;