#define TSDB_OK 0
#define TSDB_LOCK_ERROR 1
#define TSDB_SERVER_CONNECTION_ERROR 2
#define TSDB_SERVER_HOME_MISMATCH 3
#define TSDB_FILE_CREATION_ERROR 4
#define TSDB_NO_RELATIONS_ERROR 5
#define TSDB_NO_DATA_ERROR 6
#define TSDB_UNKNOWN_RELATION_ERROR 7
#define TSDB_UNKNOWN_ATTRIBUTE_ERROR 8
#define TSDB_INCOMPATIBLE_SIZE_ERROR 9
#define TSDB_FILE_NOT_FOUND_ERROR 10
#define TSDB_UNSPECIFIC_SERVER_ERROR 10
#define TSDB_SOCKET_IO_ERROR 10
#define TSDB_NO_HISTORY_ITEM_ERROR 12
#define TSDB_NO_JOIN_PATH_ERROR 13
#define TSDB_UNKNOWN_VARIABLE_ERROR 14
#define TSDB_WRITE_FILE_ERROR 15
#define TSDB_NO_QUERY_ERROR 16
#define TSDB_OS_ERROR 17
#define TSDB_READ_ONLY_ERROR 18
#define TSDB_MISSING_VALUE_ERROR 19
#define TSDB_PARSE_ERROR 20
#define TSDB_UNKNOWN_ERROR 42