anonymous_namespace{TargetExprBuilder.cpp} Namespace Reference

Functions
std::vector< std::string >	agg_fn_base_names (const TargetInfo &target_info)
bool	is_columnar_projection (const QueryMemoryDescriptor &query_mem_desc)
int64_t	get_initial_agg_val (const TargetInfo &target_info, const QueryMemoryDescriptor &query_mem_desc)

Function Documentation

std::vector<std::string> anonymous_namespace{TargetExprBuilder.cpp}::agg_fn_base_names

(

const TargetInfo &

target_info

)

Definition at line 41 of file TargetExprBuilder.cpp.

References TargetInfo::agg_kind, get_compact_type(), TargetInfo::is_agg, TargetInfo::is_distinct, kAPPROX_COUNT_DISTINCT, kAVG, kCOUNT, kMAX, kMIN, kSAMPLE, kSINGLE_VALUE, kSUM, to_string(), and UNREACHABLE.

Referenced by TargetExprCodegen::codegen(), and TargetExprCodegenBuilder::operator()().

                                                                      {
  const auto& chosen_type = get_compact_type(target_info);
  if (!target_info.is_agg || target_info.agg_kind == kSAMPLE) {
    if (chosen_type.is_geometry()) {
      return std::vector<std::string>(2 * chosen_type.get_physical_coord_cols(),
                                      "agg_id");
    }
    if (chosen_type.is_varlen()) {
      return {"agg_id", "agg_id"};
    }
    return {"agg_id"};
  }
  switch (target_info.agg_kind) {
    case kAVG:
      return {"agg_sum", "agg_count"};
    case kCOUNT:
      return {target_info.is_distinct ? "agg_count_distinct" : "agg_count"};
    case kMAX:
      return {"agg_max"};
    case kMIN:
      return {"agg_min"};
    case kSUM:
      return {"agg_sum"};
    case kAPPROX_COUNT_DISTINCT:
      return {"agg_approximate_count_distinct"};
    case kSINGLE_VALUE:
      return {"checked_single_agg_id"};
    case kSAMPLE:
      return {"agg_id"};
    default:
      UNREACHABLE() << "Unrecognized agg kind: " << std::to_string(target_info.agg_kind);
  }
  return {};
}

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int64_t anonymous_namespace{TargetExprBuilder.cpp}::get_initial_agg_val ( const TargetInfo &  target_info, const QueryMemoryDescriptor &  query_mem_desc  )

inline

Definition at line 505 of file TargetExprBuilder.cpp.

References TargetInfo::agg_kind, get_agg_initial_val(), SQLTypeInfoCore< TYPE_FACET_PACK >::get_compression(), QueryMemoryDescriptor::getCompactByteWidth(), TargetExprCodegen::is_group_by, SQLTypeInfoCore< TYPE_FACET_PACK >::is_string(), QueryMemoryDescriptor::isGroupBy(), kENCODING_NONE, kSAMPLE, and TargetInfo::sql_type.

Referenced by TargetExprCodegenBuilder::codegenMultiSlotSampleExpressions().

                                                                                {
  const bool is_group_by{query_mem_desc.isGroupBy()};
  if (target_info.agg_kind == kSAMPLE && target_info.sql_type.is_string() &&
      target_info.sql_type.get_compression() != kENCODING_NONE) {
    return get_agg_initial_val(target_info.agg_kind,
                               target_info.sql_type,
                               is_group_by,
                               query_mem_desc.getCompactByteWidth());
  }
  return 0;
}

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bool anonymous_namespace{TargetExprBuilder.cpp}::is_columnar_projection ( const QueryMemoryDescriptor &  query_mem_desc )

inline

Definition at line 76 of file TargetExprBuilder.cpp.

References QueryMemoryDescriptor::didOutputColumnar(), QueryMemoryDescriptor::getQueryDescriptionType(), and Projection.

Referenced by TargetExprCodegenBuilder::operator()().

                                                                                {
  return query_mem_desc.getQueryDescriptionType() == QueryDescriptionType::Projection &&
         query_mem_desc.didOutputColumnar();
}

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