SELECT的EXECUTE ... INTO未实现 [英] EXECUTE of SELECT ... INTO is not implemented
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问题描述
我正在尝试在PostrgeSQL中运行此功能:
I am trying to run this function in PostrgeSQL:
CREATE OR REPLACE FUNCTION create_partition_and_insert()
RETURNS trigger AS
$BODY$
DECLARE
partition VARCHAR(25);
_date text;
BEGIN
EXECUTE 'SELECT REPLACE(' || quote_literal(NEW.date) || ',''-'',''_'') into _date';
partition := TG_RELNAME || '_' || _date || ‘p’;
IF NOT EXISTS(SELECT relname FROM pg_class WHERE relname=partition) THEN
RAISE NOTICE 'A partition has been created %',partition;
EXECUTE 'CREATE TABLE ' || partition || ' (check (date = ''' || NEW.date || ''')) INHERITS (' || TG_RELNAME || ');';
END IF;
EXECUTE 'INSERT INTO ' || partition || ' SELECT(' || TG_RELNAME || ' ' || quote_literal(NEW) || ').*;';
RETURN NULL;
END;
$BODY$
LANGUAGE plpgsql;
但是在运行它时,我得到这个错误:
But on running this I get this as error:
ERROR: EXECUTE of SELECT ... INTO is not implemented
HINT: You might want to use EXECUTE ... INTO or EXECUTE CREATE TABLE ... AS instead.
CONTEXT: PL/pgSQL function create_partition_and_insert() line 6 at EXECUTE statement
我不知道为什么会这样,并且在线提供的解决方案都无法在这里为我提供帮助.
I have no clue why this is happening and none of the solutions provided online are helping me here.
推荐答案
代替
execute 'select 1 into i' -- error
您应该使用
execute 'select 1' into i
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