Преобразование Teradata в hive sql

Question

Я пытаюсь преобразовать sqar teradata ниже, чтобы получить hive sql, но я получаю ошибку рядом с конечной строкой: ParseException строка 83: 6 отсутствует) в 'qualify' рядом с «qualify» line 83:14 missing EOF at 'row_number' near 'qualify'

Я очень новичок в улье. Любая помощь будет принята с благодарностью

select customer_id   tier_cust_id, 

    support_segment  tier_suppt_seg 
from (select c.customer_id, 
      c.primary_email_name, 
      am_id, 
      am_name, 
      c.customer_first_name , 
      c.customer_last_name , 
      c.customer_primary_residence , 
      c.CUSTOMER_USER_GROUP, 
      c.customer_flag1, 
case when c.customer_primary_residence not in ('US', 'MX', 'CA') then  'ROW' 
       when ent.cust_id = bam.cust_id then 'Enterprise Support' 
       when smb.cust_id = bam.cust_id then 'Merchant Support' 
       when am.am_name like '%Merchant Support' 
        or am.am_name like '%Business Support' 
        or am.am_name = 'Sole Proprietor' 
         then 'Business Support' 
       else 'Currently Unassigned' 
      end support_segment, 


      case when support_segment = 'Enterprise Support' then 10 
       when support_segment = 'Merchant Support' then 5 
       when support_segment = 'Business Support' then 1 
       when support_segment = 'ROW' then 0 
      end segment_weight 

     from dw_acct_mgr bam 


    inner join dw_acc_mger am 
     on bam.acct_mgr_id = am.am_id 
     and pmod((am.flag1/1), 2)= 0    
     and pmod((am.flag1/2) ,2) = 1      
     and pmod((am.flag1/16) ,2) = 1 
     and pmod((bam.acct_mgr_flag1/4),2) = 0  
     and pmod((bam.acct_mgr_flag1/8),2)= 0  
     and am_name not in ('Enterprise Account', 
          'SMB' 
         ) 


    inner join customer c 
     on bam.cust_id = c.customer_id 


     left outer join (select cust_id 
         from dw_acct_mgr 
         where acct_mgr_id in (select am_id 
               from dw_acc_mger 
               where am_name in ('Enterprise Account') 
               and pmod((flag1/1), 2) = 0      
               and pmod((flag1/2) , 2) = 1      
              ) 
          and pmod((acct_mgr_flag1/4), 2) = 0    
          and prod((acct_mgr_flag1/8) , 2) = 0    
        ) ent 
     on bam.cust_id = ent.cust_id 


     left outer join (select cust_id 
         from dw_acct_mgr 
         where acct_mgr_id in (select am_id 
               from dw_acc_mger 
               where am_name in ('SMB') 
               and pmod((flag1/1), 2) = 0      
               and pmod((flag1/1), 2) = 1     
              ) 
          and pmod((acct_mgr_flag1/4) ,2) = 0    
          and pmod((acct_mgr_flag1/8),2) = 0    
        ) smb 
     on bam.cust_id = smb.cust_id 




    qualify row_number() over (partition by customer_id order by segment_weight desc, am_name asc) = 1 
) a; 

Answer 1

QUALIFY является собственностью синтаксис Teradata, вы должны переписать его с помощью производной таблицы:

select customer_id   tier_cust_id, 

    support_segment  tier_suppt_seg 
from (select c.customer_id, 
      c.primary_email_name, 
      am_id, 
      am_name, 
      c.customer_first_name , 
      c.customer_last_name , 
      c.customer_primary_residence , 
      c.CUSTOMER_USER_GROUP, 
      c.customer_flag1, 
case when c.customer_primary_residence not in ('US', 'MX', 'CA') then  'ROW' 
       when ent.cust_id = bam.cust_id then 'Enterprise Support' 
       when smb.cust_id = bam.cust_id then 'Merchant Support' 
       when am.am_name like '%Merchant Support' 
        or am.am_name like '%Business Support' 
        or am.am_name = 'Sole Proprietor' 
         then 'Business Support' 
       else 'Currently Unassigned' 
      end support_segment, 


      case when support_segment = 'Enterprise Support' then 10 
       when support_segment = 'Merchant Support' then 5 
       when support_segment = 'Business Support' then 1 
       when support_segment = 'ROW' then 0 
      end segment_weight, 

      row_number() over (partition by customer_id order by segment_weight desc, am_name asc) as rn 
     from dw_acct_mgr bam 


    inner join dw_acc_mger am 
     on bam.acct_mgr_id = am.am_id 
     and pmod((am.flag1/1), 2)= 0    
     and pmod((am.flag1/2) ,2) = 1      
     and pmod((am.flag1/16) ,2) = 1 
     and pmod((bam.acct_mgr_flag1/4),2) = 0  
     and pmod((bam.acct_mgr_flag1/8),2)= 0  
     and am_name not in ('Enterprise Account', 
          'SMB' 
         ) 


    inner join customer c 
     on bam.cust_id = c.customer_id 


     left outer join (select cust_id 
         from dw_acct_mgr 
         where acct_mgr_id in (select am_id 
               from dw_acc_mger 
               where am_name in ('Enterprise Account') 
               and pmod((flag1/1), 2) = 0      
               and pmod((flag1/2) , 2) = 1      
              ) 
          and pmod((acct_mgr_flag1/4), 2) = 0    
          and prod((acct_mgr_flag1/8) , 2) = 0    
        ) ent 
     on bam.cust_id = ent.cust_id 


     left outer join (select cust_id 
         from dw_acct_mgr 
         where acct_mgr_id in (select am_id 
               from dw_acc_mger 
               where am_name in ('SMB') 
               and pmod((flag1/1), 2) = 0      
               and pmod((flag1/1), 2) = 1     
              ) 
          and pmod((acct_mgr_flag1/4) ,2) = 0    
          and pmod((acct_mgr_flag1/8),2) = 0    
        ) smb 
     on bam.cust_id = smb.cust_id 
) a 
where rn = 1;