duplicate CHECK constraint name

CREATE TABLE t (

path VARCHAR(100) NOT NULL COLLATE 'utf8_general_ci',

json_c1 JSON NOT NULL DEFAULT '' COLLATE 'utf8mb4_bin',

json_c2 JSON NOT NULL DEFAULT '' COLLATE 'utf8mb4_bin',

comment VARCHAR(100) NULL DEFAULT NULL COLLATE 'utf8_general_ci',

UNIQUE INDEX path (path),

CONSTRAINT json_c1 CHECK (path > 0)

)

;

select * from information_schema.check_constraints where table_name='t';

create table t (a int check (a>2), constraint a check (a < 5));

select * from information_schema.check_constraints where table_name='t';