Constant rocksdb::properties::MIN_OBSOLETE_SST_NUMBER_TO_KEEP

pub const MIN_OBSOLETE_SST_NUMBER_TO_KEEP: &PropName;

“rocksdb.min-obsolete-sst-number-to-keep” - return the minimum file number for an obsolete SST to be kept. The max value of uint64_t will be returned if all obsolete files can be deleted.