Question

我在使用Snowflake的熊猫连接器时遇到了麻烦。

此代码的最后一行导致python内核立即死亡。关于如何诊断这种情况有什么建议吗？

import pyarrow
import snowflake.connector
import pandas as pd

ctx = snowflake.connector.connect(
    user=********,
    password=********,
    account=********,
    warehouse='compute_wh',
    database='SNOWFLAKE_SAMPLE_DATA',
    schema='WEATHER'
)
cs = ctx.cursor()
cs.execute('select * from weather_14_total limit 10')
cs.fetch_pandas_all()

请注意，如果将fetch_pandas_all()替换为fetchone()，一切正常。

谢谢。

基思

Answer 1

我们的团队上周也遇到了同样的问题。对于我们来说，解决方法最终是改为使用read_sql命令。

Answer 2

这对我有用：

import pandas as pd 
from snowflake.connector import connect 

qry = "SELECT * FROM TABLE LIMIT 5"

con = connect(
  account = 'ACCOUNT',
  user = 'USER',
  password = 'PASSWORD',
  role= 'ROLE',
  warehouse = 'WAREHOUSE',
  database = 'DATABASE',
  schema = 'SCHEMA'
)

df = pd.read_sql(qry, con)

但是，这是对类似问题的最高评价：

import pandas as pd

from sqlalchemy import create_engine
from snowflake.sqlalchemy import URL

url = URL(
  account = 'xxxx',
  user = 'xxxx',
  password = 'xxxx',
  database = 'xxx',
  schema = 'xxxx',
  warehouse = 'xxx',
  role='xxxxx',
  authenticator='https://xxxxx.okta.com',
)
engine = create_engine(URL)
connection = engine.connect()

query = '''
  select * from MYDB.MYSCHEMA.MYTABLE
  LIMIT 10;
'''

df = pd.read_sql(query, connection)

雪花熊猫连接器杀死内核

2 个答案: