syntax = "proto3";

package schema_pb;

option go_package = "github.com/seaweedfs/seaweedfs/weed/pb/schema_pb";

message RecordType {
    repeated Field fields = 2;
}

message Field {
    string name = 1;
    Type type = 2;
    int32 index = 3;
    bool is_optional = 4;
    bool is_repeated = 5;
}

message Type {
    oneof kind {
        ScalarType scalar_type = 1;
        RecordType record_type = 2;
        MapType map_type = 3;
    }
}

enum ScalarType {
    BOOLEAN = 0;
    INTEGER = 1;
    LONG = 3;
    FLOAT = 4;
    DOUBLE = 5;
    BYTES = 6;
    STRING = 7;
}

message MapType {
    // key is always string
    Type value = 1;
}