[CM8.4.1.1210]The ddl of create unique index for 9.0.0 isn't right.

1 Create one table in cubrid8.4.1

CREATE TABLE "datatype"(
"tint" integer NOT NULL,
"tchar" character(10),
"tbigint" bigint,
"tbit" bit(10),
"tbitvarying" bit varying(4096),
"tdate" date,
"tdatetime" datetime,
"tdouble" double,
"tfloat" float,
"tmonetary" monetary,
"tnchar" character(1),
"tnvarchar" character varying(4096),
"tmultiset" multiset_of(integer),
"tnumeric" numeric(15,0),
"tsequence" sequence_of(integer),
"tset" set_of(integer),
"tsmallint" smallint,
"tstring" character varying(1073741823),
"ttime" time,
"ttimestamp" timestamp,
"tvarchar" character varying(4096),
"tblob" blob,
"tclob" clob,
"numeric53" numeric(5,3),
"numeric33" numeric(3,3),
"numeric385" numeric(38,5),
CONSTRAINT pk_datatype_tint PRIMARY KEY("tint")
);
CREATE UNIQUE INDEX ON "datatype"("tint");

2 copy it's ddl to databases of cubrid9.0.0 in CM

Actual result:
It cannot run. it need add index name.