VARBYTE is decoded into utf-8

[psukys]

In readme VARBYTE is stated as supported as Python's bytes type. When trying to query data VARBYTE data from Redshift, 'utf-8' decoding error is thrown.

Reproduction

import redshift_connector


DROP_DDL = "drop table if exists varbyte_repro"
CREATE_DDL = """create table varbyte_repro(
 my_var varbyte
);
"""
INSERT_DML = "insert into varbyte_repro(my_var) values (from_hex(SHA1('hello')))"
QUERY = "select * from varbyte_repro"

with redshift_connector.connect(
 host="replaced",
 database="replaced",
 user="replaced",
 password="replaced",
) as conn, conn.cursor() as cursor:
 conn.autocommit = True
 cursor.execute(DROP_DDL)
 cursor.execute(CREATE_DDL)
 cursor.execute(INSERT_DML)
 cursor.execute(QUERY)

Expected

Last cursor.execute runs without issue (so that later something like cursor.fetchall could be used)

Actual

Error thrown:

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xaa in position 0: invalid start byte