SQL Error[42601]: Error: syntax error at or near "0"

Question

我不明白如何从 select 中创建一个数组，我遇到了一个错误

SQL Error[42601]: Error: syntax error at or near "0"", Error occurred on dblink connection named "unnamed": could not execute query.

create temporary table house_address as
   (SELECT full_address
    FROM dblink('db_d',
         'drop table if exists _x17092018;
             create temporary table _x17092018 (
             guid character varying,
             full_address character varying,
             address_guid character varying
          ); 
          do $$
             declare
                guids_list character varying[]
                   := ''{(''' ||
                      (SELECT STRING_AGG(DISTINCT guid, ''', ''')
                       FROM lc) ||
                      ''')}'';
                r character varying;
             begin
                foreach r in array guids_list 
                loop
                   insert into _x17092018
                      select r, t.*
                      FROM sm.func_by_houseid(r, TRUE, ''db'') as t;
                end loop;
             END$$;'
         ) AS addr(full_address TEXT)
   );

Answer 1

错误必须来自 guids_list 的初始化。

这样写，出来的时候会是这样的

{[guid1', 'guid ' containing spaces and quote', 'guid3]}

这显然不是您想要的。此外，正如我试图演示的那样，它对 SQL 注入是开放的。

你可以使用像

这样的东西

'guids_list character varying[] := ' ||
   (SELECT quote_literal(array_agg(DISTINCT guid)) FROM lc) || ';'

SQL Error[42601]: Error: syntax error at or near "0"

SQL Error[42601]: Error: syntax error at or near "0"

sql

postgresql

plpgsql

dblink