I can't connect to an IAMR redshift user with this lib ```sql CREATE USER "IAMR:test_to_delete_redshift_ci" PASSWORD DISABLE; ``` but It work when I manually use boto3+psycopg2 ```python import os import boto3 import psycopg2 import redshift_connector os.environ["AWS_PROFILE"] = "redshift_test_role_2" def with_lib(): conn = redshift_connector.connect( iam=True, cluster_identifier="YYYYYY", database="AAAAA", db_user="test_to_delete_redshift_ci", password="", region="eu-west-1", ) cursor = conn.cursor() cursor.execute("SELECT 10,20") print(cursor.fetchall()) def manually(): RS_PORT = 5439 DATABASE = 'AAAAAA' CLUSTER_ID = 'YYYYYYY' RS_HOST = 'XXXXXXXXXXX' client = boto3.client('redshift') cluster_creds = client.get_cluster_credentials_with_iam(ClusterIdentifier=CLUSTER_ID) print(cluster_creds) conn = psycopg2.connect( host=RS_HOST, port=RS_PORT, user=cluster_creds['DbUser'], password=cluster_creds['DbPassword'], database=DATABASE ) cur = conn.cursor() cur.execute("SELECT 10,20") print(cur.fetchall()) if __name__ == '__main__': with_lib() manually() ``` with_lib fail with ```log redshift_connector.error.ProgrammingError: {'S': 'FATAL', 'C': '42704', 'M': 'user "IAM:test_to_delete_redshift_ci" does not exist', 'F': '/opt/brazil-pkg-cache/packages/RedshiftPADB/RedshiftPADB-1.0.7910.0/AL2_x86_64/generic-flavor/src/src/pg/src/backend/utils/init/miscinit.c', 'L': '976', 'R': 'InitializeSessionUserId'} ```
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