yiguolei commented on code in PR #51271:
URL: https://github.com/apache/doris/pull/51271#discussion_r2108082026
##########
be/src/olap/rowset/segment_v2/segment.cpp:
##########
@@ -1231,4 +1232,50 @@ StoragePageCache::CacheKey
Segment::get_segment_footer_cache_key() const {
_file_reader->size() - 12);
}
+std::map<uint32_t, Segment::ZoneMapInfo> Segment::get_zone_maps() const {
+ if (!config::enable_rowset_zone_map_cache ||
config::cache_zone_map_max_columns_count == 0) {
+ return {};
+ }
+
+ auto footer_pb = _footer_pb.lock();
+ if (!footer_pb) {
+ return {};
Review Comment:
这里为什么不是去磁盘里加载一下？
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