错误：“INTEGER”第 2 行或附近的语法错误：v_stage INTEGER:=0;

Question

DECLARE
  v_stage INTEGER:=0;
[...]
  RETURN QUERY 
  SELECT 1.0::FLOAT, v_stage, sex, birthdate, place, district, subdistrict, village, race,
     complexion, eyecolor, haircolor, height, weight, hp, mother, father, picture, sidenote,
     mannerism, name, method, crimetype, suspect_id
  FROM public.suspect
  WHERE complexion = p_complexion TEXT,
  AND CASE WHEN p_eyecolor IS NOT NULL THEN eyecolor = p_eyecolor ELSE true END
  AND CASE WHEN p_haircolor IS NOT NULL THEN haircolor = p_haircolor ELSE true END
  AND CASE WHEN p_height FLOAT IS NOT NULL THEN height = p_height ELSE true END
  AND CASE WHEN p_weight FLOAT IS NOT NULL THEN weight = p_weight ELSE true END
  AND CASE WHEN p_sex IS NOT NULL THEN sex = p_sex ELSE true END
  AND CASE WHEN p_sidenote TEXT IS NOT NULL THEN sidenote = p_sidenote ELSE true END
  AND CASE WHEN p_mannerism TEXT IS NOT NULL THEN mannerism = p_mannerism ELSE true END
  AND CASE WHEN p_method TEXT IS NOT NULL THEN method = p_method ELSE true END
  AND CASE WHEN p_crimetype TEXT IS NOT NULL THEN crimetype = p_crimetype ELSE true END;
[...]

---

->错误：“整数”或附近的语法错误“总是出错！我不知道为什么” ->第 2 行：v_stage INTEGER:=0;

请能解决这个问题的人，我真的很感激......

使用评论中的代码更新：

DO 
$$ 
    DECLARE 
    v_stage INTEGER:=0; 
    RAISE NOTICE 'y'; 
    RETURN QUERY 
        SELECT 
            1.0::FLOAT, v_stage, sex, birthdate, place, district, subdistrict, village, race, complexion, eyecolor, haircolor, height, weight, hp, mother, father, picture 
    FROM 
        public.suspect
    WHERE 
        complexion = p_complexion TEXT, 
    AND 
        CASE WHEN 
            p_eyecolor IS NOT NULL 
        THEN    
            eyecolor = p_eyecolor 
        ELSE 
            true 
        END 
    AND 
        CASE WHEN 
            p_haircolor IS NOT NULL 
        THEN 
            haircolor = p_haircolor 
        ELSE 
            true 
        END; 
    END$$; 

在我在 DECLARE 之前添加 DO $$ 之后，又出现了另一个错误：ERROR: syntax error at or near "SELECT" LINE 6: RETURN QUERY

CONTEXT：无效的类型名称“QUERY SELECT 1.0::FLOAT”

Answer 1

这行得通：

DO $$
DECLARE
    v_stage INTEGER:=0;
BEGIN
    RAISE NOTICE 'test';

END$$;

NOTICE:  test
DO

所以我要说它是DECLARE 之前的东西。将函数的开头部分添加到您的代码示例中。