我有以下工作python代码来执行impala连接/查询：

import pandas as pd

query = 'select my_c_instance_id, count(my_c_instance_id) as my_ins_id_count from ' + \
         '(select * from my_table where my_c_id like "%small%") as small_table' + \
         ' group by(my_c_instance_id)'
cursor = impala_con.cursor()
cursor.execute('USE my_db')
cursor.execute(query)
df_result = as_pandas(cursor)
df_result

代码运行良好，但我想知道是否有可能将其分成两个更可读的部分，例如：

small_table = 'select * from my_table where my_c_id like "%small%"'

query = 'select my_c_instance_id, count(my_c_instance_id) as my_ins_id_count from small_table group by(my_c_instance_id)'

cursor = impala_con.cursor()
cursor.execute('USE my_db')
cursor.execute(query)
df_result = as_pandas(cursor)
df_result

如果可能的话，我如何让上述想法真正起作用？谢谢。