unable to use favroparser in copy commad for non vertica dba account

Hi,

   I have given grants on parser to non dba user still it is saying permission issue, Please help me.

this below tests are done in non dba users and vertica version is 7.2.2

CREATE flex table AVRO_TEST();

copy  db_test.AVRO_TEST from '/nfshome/ganchuri/Avro_files/customers_snappy.avro'  parser favroparser() abort on error;

ERROR 3457:  Function favroparser() does not exist, or permission is denied for favroparser()

HINT:  No function matches the given name and argument types. You may need to add explicit type casts

Thanks

Govind