jinchengchenghh commented on code in PR #10742:
URL:
https://github.com/apache/incubator-gluten/pull/10742#discussion_r2362248554
##########
cpp/velox/compute/VeloxPlanConverter.cc:
##########
@@ -46,27 +46,31 @@ std::shared_ptr<SplitInfo> parseScanSplitInfo(
using SubstraitFileFormatCase =
::substrait::ReadRel_LocalFiles_FileOrFiles::FileFormatCase;
auto splitInfo = std::make_shared<SplitInfo>();
- splitInfo->paths.reserve(fileList.size());
- splitInfo->starts.reserve(fileList.size());
- splitInfo->lengths.reserve(fileList.size());
- splitInfo->partitionColumns.reserve(fileList.size());
- splitInfo->properties.reserve(fileList.size());
- splitInfo->metadataColumns.reserve(fileList.size());
+ const size_t fileCount = fileList.size();
+
+ splitInfo->paths.reserve(fileCount);
+ splitInfo->starts.reserve(fileCount);
+ splitInfo->lengths.reserve(fileCount);
+ splitInfo->partitionColumns.reserve(fileCount);
+ splitInfo->properties.reserve(fileCount);
+ splitInfo->metadataColumns.reserve(fileCount);
for (const auto& file : fileList) {
// Expect all Partitions share the same index.
splitInfo->partitionIndex = file.partition_index();
std::unordered_map<std::string, std::string> partitionColumnMap;
+ partitionColumnMap.reserve(file.partition_columns_size());
for (const auto& partitionColumn : file.partition_columns()) {
- partitionColumnMap[partitionColumn.key()] = partitionColumn.value();
+ partitionColumnMap.emplace(partitionColumn.key(),
partitionColumn.value());
}
- splitInfo->partitionColumns.emplace_back(partitionColumnMap);
+ splitInfo->partitionColumns.emplace_back(std::move(partitionColumnMap));
Review Comment:
For the interface, if the table is not a partitioned table, we should not
set the field, I miss an issue before,
https://github.com/apache/incubator-gluten/pull/10622
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