Module compactor 

Structs

CompactionRegion

CompactionRegion represents a region that needs to be compacted. It’s the subset of MitoRegion.

CompactionVersion

Region version for compaction that does not hold memtables.

DefaultCompactor

DefaultCompactor is the default implementation of Compactor.

DefaultSstMerger

The production SstMerger that reads, merges, and writes SST files.

MergeOutput

[MergeOutput] represents the output of merging SST files.

OpenCompactionRegionRequest

OpenCompactionRegionRequest represents the request to open a compaction region.

OutputSequenceMetadata 🔒

File-level sequence metadata is independent of physical row encoding.

Traits

Compactor

Compactor is the trait that defines the compaction logic.

SstMerger

Trait for merging a single compaction output into SST files.

Functions

known_max_input_sequence 🔒

Computes the maximum target-domain sequence bound of the output of merging inputs. A bound can be a row maximum or an admission marker; compaction must preserve both for sequence-based pruning. Unknown bounds must remain unknown rather than being replaced with a partial maximum.

open_compaction_region

Open a compaction region from a compaction request. It’s simple version of RegionOpener::open().

output_sequence_metadata 🔒

Compaction does not admit new data, so it inherits the input sequence bounds without allocating a new admission marker. Retaining physical row sequences does not by itself restore exact-read capability for untrusted inputs.

sst_info_from_file_meta 🔒

Builds an SstInfo for the remote-compaction path by copying the scalar fields that FileMeta also carries.