Problem in using COLLECT statment

Hi experts,

getting problem in using COLLECT statement. attaching my code below.

LOOP AT it_final1 INTO wa_final1.

LOOP AT it_final INTO wa_final WHERE vagrp = wa_final1-vagrp AND verwmerkm = wa_final1-verwmerkm.

wa_final1-anzwertg = wa_final-anzwertg.

COLLECT wa_final1 INTO it_final1.

ENDLOOP.

CLEAR: wa_final1, wa_final.

ENDLOOP.

here , i want to use collect statement only for "anzwertg" field from internal table. but 2 more fields also getting compressed .

attaching screen shot

here, original_input and max fields also getting compressed.

could anybody please help me out in this.

Thanks in advance.

Regards

satish