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29a0be75da
Enables parallelization of UDA and native aggregates. The way the query is parallelized is the same as in #9209. Separate reduction type for `COUNT(*)` is left for compatibility reason.
37 lines
855 B
C++
37 lines
855 B
C++
namespace db {
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namespace functions {
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class function_name {
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sstring keyspace;
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sstring name;
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};
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}
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}
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namespace query {
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struct forward_request {
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struct aggregation_info {
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db::functions::function_name name;
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std::vector<sstring> column_names;
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};
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enum class reduction_type : uint8_t {
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count,
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aggregate
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};
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std::vector<query::forward_request::reduction_type> reduction_types;
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query::read_command cmd;
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dht::partition_range_vector pr;
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db::consistency_level cl;
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lowres_clock::time_point timeout;
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std::optional<std::vector<query::forward_request::aggregation_info>> aggregation_infos [[version 5.1]];
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};
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struct forward_result {
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std::vector<bytes_opt> query_results;
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};
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verb forward_request(query::forward_request, std::optional<tracing::trace_info>) -> query::forward_result;
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}
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