Tengo una consulta sql teradata que funciona bien en el navegador de consultas de Teradata Studio Express, pero cuando intenté ejecutar la misma consulta en mi código de Python obtengo el siguiente error:

(3706, "[42000] [Teradata] [Controlador ODBC Teradata] Error de Teradata DatabaseSyntax: esperaba algo entre '(' y '('.")

Mi consulta:

td_query = """select 
hash_md5((XMLAGG(TRIM(h_age) ORDER BY h_age ASC) (VARCHAR(100))) )hash_age,
hash_md5((XMLAGG(TRIM(h_marks) ORDER BY h_age ASC )(VARCHAR(100)))) hash_marks,
hash_md5((XMLAGG(TRIM(h_id) ORDER BY h_age ASC )(VARCHAR(100)))) hash_id,
hash_md5((XMLAGG(TRIM(h_score) ORDER BY h_age ASC )(VARCHAR(100))))hash_score,
hash_md5((XMLAGG(TRIM(h_name) ORDER BY h_age ASC )(VARCHAR(100))))hash_name,
hash_md5((XMLAGG(TRIM(h_entry) ORDER BY h_entry ASC )(VARCHAR(100))))hash_entry,
SUM(Aggrownum) sum_val,
COUNT(Aggrownum) count_val,
sum_val/count_val row_num
from 
(
Select 
hash_md5(CAST(age AS VARCHAR(100)))h_age ,
hash_md5(CAST(marks AS VARCHAR(100)))h_marks,
hash_md5(CAST(id AS VARCHAR(100)))h_id,
hash_md5(CAST(score AS VARCHAR(100)))h_score,
hash_md5(CAST(f_name AS VARCHAR(100)))h_name,
hash_md5(CAST(entry AS FORMAT 'yyyy-mm-ddbhh:mi:ss') (char (20)))h_entry,
row_number() over (partition by dob order by  age asc) rno,round(rno/500.0) Aggrownum
from tdwm.student_2
) A group by Aggrownum ORDER BY row_num;
"""

y en el archivo python ejecutándolo como:

df_teradata = pd.read_sql(td_query, connect)            

Dóndeconnect es eltd.UdaExecl objeto @ y el código anterior funcionan bien para otras consultas más simples comoselect * from tdwm.student_2.

También probé la versión minimizada de la misma consulta. Recibo el mismo error.

Este es el código donde estoy usandotd_query:

import pandas as pd
import teradata as td

td_host, td_username, td_passwd, td_dbname = '10.20.181.55', 'dbac', 'dbac', 'tdwm'

udaExec = td.UdaExec(appName="test", version="1.0", logConsole=False)
with udaExec.connect(method="odbc",system=td_host, username=td_username, port=1025,
                            password=td_passwd, driver="Teradata Database ODBC Driver 16.20") as connect:
    df_teradata = pd.read_sql(td_query, connect)