HiRDB hasn't equivalent for Width_bucket function. SQLWays leaves it as is and adds message /*Сould not convert ' WIDTH_BUCKET'*/.

Oracle:

SELECT WIDTH_BUCKET(c1, 100, 5000, 10) FROM t;

HiRDB:

SELECT WIDTH_BUCKET(c1, 100, 5000, 10) FROM t;
/* Сould not convert ' WIDTH_BUCKET' */