syntax = "proto3";

package milvus.proto.common;
option go_package="github.com/milvus-io/milvus/internal/proto/commonpb";


enum ErrorCode {
    Success = 0;
    UnexpectedError = 1;
    ConnectFailed = 2;
    PermissionDenied = 3;
    CollectionNotExists = 4;
    IllegalArgument = 5;
    IllegalDimension = 7;
    IllegalIndexType = 8;
    IllegalCollectionName = 9;
    IllegalTOPK = 10;
    IllegalRowRecord = 11;
    IllegalVectorID = 12;
    IllegalSearchResult = 13;
    FileNotFound = 14;
    MetaFailed = 15;
    CacheFailed = 16;
    CannotCreateFolder = 17;
    CannotCreateFile = 18;
    CannotDeleteFolder = 19;
    CannotDeleteFile = 20;
    BuildIndexError = 21;
    IllegalNLIST = 22;
    IllegalMetricType = 23;
    OutOfMemory = 24;
    IndexNotExist = 25;
    EmptyCollection = 26;

    // internal error code.
    DDRequestRace = 1000;
}

enum IndexState {
    IndexStateNone = 0;
    Unissued = 1;
    InProgress = 2;
    Finished = 3;
    Failed = 4;
}

enum SegmentState {
    SegmentStateNone = 0;
    NotExist = 1;
    Growing = 2;
    Sealed = 3;
    Flushed = 4;
    Flushing = 5;
    Dropped = 6;
}

message Status {
    ErrorCode error_code = 1;
    string reason = 2;
}

message KeyValuePair {
    string key = 1;
    string value = 2;
}

message KeyDataPair {
    string key = 1;
    bytes data = 2;
}

message Blob {
    bytes value = 1;
}

message Address {
  string ip = 1;
  int64 port = 2;
}

enum MsgType {
    Undefined = 0;
    /* DEFINITION REQUESTS: COLLECTION */
    CreateCollection = 100;
    DropCollection = 101;
    HasCollection = 102;
    DescribeCollection = 103;
    ShowCollections = 104;
    GetSystemConfigs = 105;
    LoadCollection = 106;
    ReleaseCollection = 107;
    CreateAlias = 108;
    DropAlias = 109;
    AlterAlias = 110;


    /* DEFINITION REQUESTS: PARTITION */
    CreatePartition = 200;
    DropPartition = 201;
    HasPartition = 202;
    DescribePartition = 203;
    ShowPartitions = 204;
    LoadPartitions = 205;
    ReleasePartitions = 206;

    /* DEFINE REQUESTS: SEGMENT */
    ShowSegments = 250;
    DescribeSegment = 251;
    LoadSegments = 252;
    ReleaseSegments = 253;
    HandoffSegments = 254;
    LoadBalanceSegments = 255;

    /* DEFINITION REQUESTS: INDEX */
    CreateIndex = 300;
    DescribeIndex = 301;
    DropIndex = 302;

    /* MANIPULATION REQUESTS */
    Insert = 400;
    Delete = 401;
    Flush = 402;

    /* QUERY */
    Search = 500;
    SearchResult = 501;
    GetIndexState = 502;
    GetIndexBuildProgress = 503;
    GetCollectionStatistics = 504;
    GetPartitionStatistics = 505;
    Retrieve = 506;
    RetrieveResult = 507;
    WatchDmChannels = 508;
    RemoveDmChannels = 509;
    WatchQueryChannels = 510;
    RemoveQueryChannels = 511;
    SealedSegmentsChangeInfo = 512;
    WatchDeltaChannels = 513;

    /* DATA SERVICE */
    SegmentInfo = 600;
    SystemInfo = 601;
    GetRecoveryInfo = 602;
    GetSegmentState = 603;

    /* SYSTEM CONTROL */
    TimeTick = 1200;
    QueryNodeStats = 1201; // GOOSE TODO: Remove kQueryNodeStats
    LoadIndex = 1202;
    RequestID = 1203;
    RequestTSO = 1204;
    AllocateSegment = 1205;
    SegmentStatistics = 1206;
    SegmentFlushDone = 1207;

    DataNodeTt = 1208;
}

message MsgBase {
    MsgType msg_type = 1;
    int64  msgID = 2;
    uint64 timestamp = 3;
    int64 sourceID = 4;
}

enum DslType {
    Dsl = 0;
    BoolExprV1 = 1;
}

// Don't Modify This. @czs
message MsgHeader {
    common.MsgBase base = 1;
}

// Don't Modify This. @czs
message DMLMsgHeader {
    common.MsgBase base = 1;
    string shardName = 2;
}

enum CompactionState {
  UndefiedState = 0;
  Executing = 1;
  Completed = 2;
}

enum ConsistencyLevel {
    Strong = 0;
    Session = 1; // default in PyMilvus
    Bounded = 2;
    Eventually = 3;
    Customized = 4; // Users pass their own `guarantee_timestamp`.
}

enum ImportState {
    ImportPending = 0;
    ImportExecuting = 1;
    ImportCompleted = 2;
    ImportFailed = 3;
}