db.proto

syntax = "proto2";
package keystoneDB;

message Column{
  enum ColumnType{
    COLUMN_INT = 0;
    COLUMN_CHAR = 1;
    COLUMN_NULL = 3;
    COLUMN_FLOAT = 4;
  }

  optional  ColumnType type = 1;
  optional  int32 integer_num = 2;
  optional  string str = 3;
  optional double float_num = 4;
}

message Row {
  repeated Column columns = 1;
}

message TableMetadata {
  repeated DBDefinition definitions = 1;
  optional uint64 nextId = 2;
  optional bool hasPrimary = 3;
}

message DBDefinition{
  enum DefinitionType{
    INTEGER = 1;
    CHAR = 2;
    FLOAT = 3;
  }
  optional DefinitionType type = 1;
  optional string name = 2;
  optional bool isPrimary = 3;
  optional bool isIndex = 4;
  optional uint64 charLen = 5;
  optional bool nullable = 6;
}

message DBMetadata {
  repeated string tables = 1;
}