索引79

Question

使用Psycopg2模块执行查询时出现以下错误。 我已经在PgAdmin 4中执行了相同的查询，并且运行正常，并给出了结果。当我通过Python执行该错误时，就会发生错误。

有人可以建议我如何解决这个问题吗？

下面是代码：

for new_ticket in zenpy_client.search(type='ticket', status='open',requester='je.rr.y@gmail.com'):
    #new_ticket.assignee = modified_user
     #print(new_ticket.requester.email)

     psql_command=""" WITH CTE AS (select cast(origin as text) as origin, MAX(case when name like '%OUT%' THEN name else ''end) as out_ref
                                    , MAX(case when name like '%PICK%' THEN name else ''end) as pick_ref
                                    , MAX(case when name like '%PICK%' THEN state else ''end) as pick_state
                                        , MAX(case when name like '%OUT%' THEN state else ''end) as out_state
                     from dl_odoo.stock_picking 
                     GROUP BY origin)
               select o.customer_email,o.order_number,o.order_state_1,o.order_state_2,o.order_subtotal_net_after_discount as revenue
                 ,created_at_order,c.out_ref as reference,o.payment_method,c.pick_ref,c.pick_state,c.out_ref,c.out_state
               from ol.orders o 
                       LEFT JOIN CTE c ON c.origin=o.order_number 
                   where
                       customer_email='%s' order by o.created_at_order desc limit 3
                   ;"""
     try:
         s=''
         print(new_ticket.requester.email)
         print(psql_command)
         try:
             psql_cursor.execute(psql_command %new_ticket.requester.email)
         except (Exception, psycopg2.Error) as error:
             print ("ssss")
             print (error)

Answer 1

您需要转义字符串中的百分号。 Python将它们解释为好像是类似于printf的格式说明符。用%%替换每个％，它应该可以工作。