syntax = "proto3";

package interpreted_wal;

message InterpretedWalRecords {
  repeated InterpretedWalRecord records = 1;
  optional uint64 next_record_lsn = 2;
  optional uint64 raw_wal_start_lsn = 3;
}

message InterpretedWalRecord {
  optional bytes metadata_record = 1;
  SerializedValueBatch batch = 2;
  uint64 next_record_lsn = 3;
  bool flush_uncommitted = 4;
  uint32 xid = 5;
}

message SerializedValueBatch {
  bytes raw = 1;
  repeated ValueMeta metadata = 2;
  uint64 max_lsn = 3;
  uint64 len = 4;
}

enum ValueMetaType {
  Serialized = 0;
  Observed = 1;
}

message ValueMeta {
  ValueMetaType type = 1;
  CompactKey key = 2;
  uint64 lsn = 3;
  optional uint64 batch_offset = 4;
  optional uint64 len = 5;
  optional bool will_init = 6;
}

message CompactKey {
  uint64 high = 1;
  uint64 low = 2;
}