"ERROR: too few arguments for format()" in a PL/pgSQL function

Question

我创建了一个函数来从使用不同时间段的多个表中提取信息：

CREATE OR REPLACE FUNCTION getAllFoo() RETURNS SETOF tmpindicadores AS
$BODY$
DECLARE
r tmpindicadores%rowtype;
record tmpindicadores.relname%type;
tmpdata_inicio TIMESTAMP;
tmpdata_fim TIMESTAMP;
dia_inicio INTEGER := 01;
dia_fim INTEGER := 01;
mes INTEGER;
ano INTEGER;

BEGIN 
SELECT EXTRACT (MONTH FROM CURRENT_DATE) INTO mes;enter code here
SELECT EXTRACT (YEAR FROM CURRENT_DATE) INTO ano;
tmpdata_inicio := ano || '-' ||mes ||'-' ||dia_inicio;
tmpdata_fim := ano || '-' ||mes + 1 ||'-' ||dia_fim;

FOR r IN SELECT relname FROM tmpindicadores
LOOP
record = r.relname;
EXECUTE format($$INSERT INTO indicadores1 (SELECT * FROM %I WHERE time_date >= %tmpdata_inicio 
AND time_date <= %tmpdata_fim)$$,record);
RETURN NEXT r;
END LOOP;
COPY indicadores1 TO '/var/app_data/indicadores/arquivos/indicadores1.csv' DELIMITER ';' CSV 
HEADER;
RETURN;
END
$BODY$
LANGUAGE plpgsql;

SELECT * FROM getAllFoo();

但我得到：

ERROR: too few arguments for format.

此错误发生在 EXECUTE 行。当我将变量 tmpdata_inicio 和 tmpdata_fim 替换为“2022-04-01 00:00:00”和“2022-04-05 00:00:00”时，它工作得很好。

我做错了什么？

Answer 1

您为 format() 使用了不正确的格式说明符。

这可行：

EXECUTE format($$INSERT INTO indicadores1 SELECT * FROM %I WHERE time_date >= %L AND time_date <= %L$$, record, tmpdata_inicio, tmpdata_fim);

而是使用 USING 子句传递 values：

EXECUTE format($$INSERT INTO indicadores1 SELECT * FROM %I WHERE time_date >=  AND time_date <= $$, record)
USING tmpdata_inicio, tmpdata_fim;

也就是说，我会重写整个函数以清理和优化...

"ERROR: too few arguments for format()" in a PL/pgSQL function

"ERROR: too few arguments for format()" in a PL/pgSQL function

sql

postgresql

plpgsql