PostgreSQL：从存储过程返回临时表

Question

我想从存储过程返回存储在临时表中的查询结果。 我不确定最后的声明应该是什么。 任何帮助都适用：

CREATE OR REPLACE FUNCTION public.get_generic_info(
    IN in_app_id character varying,
    IN key_id uuid)
RETURNS TABLE(info text, last_update timestamp with time zone) AS
$BODY$  
BEGIN
    CREATE TEMP TABLE result AS
        SELECT  generic_info.info::text, generic_info.last_update FROM 
                generic_info 
        WHERE generic_info.app_id = in_app_id AND generic_info.id = key_id;

    -- some data manipulations based on 'result' rows       
    RETURN ???????;
END;

Answer 1

您的最后一句话是这样的

RETURN QUERY 
     SELECT  result.info::text, result.last_update FROM 
      result;

如果您没有将TEMP表用于其他任何用途，则根本不需要创建临时表。.您可以直接执行

RETURN QUERY
SELECT  generic_info.info::text, generic_info.last_update FROM 
                generic_info 
        WHERE generic_info.app_id = in_app_id AND generic_info.id = key_id;