| 218 | } |
| 219 | |
| 220 | bool CommonTemporalResolution(const TypeHolder* begin, size_t count, |
| 221 | TimeUnit::type* finest_unit) { |
| 222 | bool is_time_unit = false; |
| 223 | *finest_unit = TimeUnit::SECOND; |
| 224 | const TypeHolder* end = begin + count; |
| 225 | for (auto it = begin; it != end; it++) { |
| 226 | auto id = it->type->id(); |
| 227 | switch (id) { |
| 228 | case Type::DATE32: { |
| 229 | // Date32's unit is days, but the coarsest we have is seconds |
| 230 | is_time_unit = true; |
| 231 | continue; |
| 232 | } |
| 233 | case Type::DATE64: { |
| 234 | *finest_unit = std::max(*finest_unit, TimeUnit::MILLI); |
| 235 | is_time_unit = true; |
| 236 | continue; |
| 237 | } |
| 238 | case Type::TIMESTAMP: { |
| 239 | const auto& ty = checked_cast<const TimestampType&>(*it->type); |
| 240 | *finest_unit = std::max(*finest_unit, ty.unit()); |
| 241 | is_time_unit = true; |
| 242 | continue; |
| 243 | } |
| 244 | case Type::DURATION: { |
| 245 | const auto& ty = checked_cast<const DurationType&>(*it->type); |
| 246 | *finest_unit = std::max(*finest_unit, ty.unit()); |
| 247 | is_time_unit = true; |
| 248 | continue; |
| 249 | } |
| 250 | case Type::TIME32: { |
| 251 | const auto& ty = checked_cast<const Time32Type&>(*it->type); |
| 252 | *finest_unit = std::max(*finest_unit, ty.unit()); |
| 253 | is_time_unit = true; |
| 254 | continue; |
| 255 | } |
| 256 | case Type::TIME64: { |
| 257 | const auto& ty = checked_cast<const Time64Type&>(*it->type); |
| 258 | *finest_unit = std::max(*finest_unit, ty.unit()); |
| 259 | is_time_unit = true; |
| 260 | continue; |
| 261 | } |
| 262 | default: |
| 263 | continue; |
| 264 | } |
| 265 | } |
| 266 | return is_time_unit; |
| 267 | } |
| 268 | |
| 269 | TypeHolder CommonTemporal(const TypeHolder* begin, size_t count) { |
| 270 | TimeUnit::type finest_unit = TimeUnit::SECOND; |