Postgresql Docker上的Postgres-超出堆栈深度限制
我在本地Docker上安装了Postgres(最新版本): docker compose:Postgresql Docker上的Postgres-超出堆栈深度限制,postgresql,database-trigger,Postgresql,Database Trigger,我在本地Docker上安装了Postgres(最新版本): docker compose: version: '3.1' services: postgres: image: postgres restart: always ports: - 5435:5432 environment: POSTGRES_PASSWORD: xxxxxxx volumes: - pgdata:/var/lib/postgresql/
version: '3.1'
services:
postgres:
image: postgres
restart: always
ports:
- 5435:5432
environment:
POSTGRES_PASSWORD: xxxxxxx
volumes:
- pgdata:/var/lib/postgresql/data
- ./init.sql:/docker-entrypoint-initdb.d/init.sql
command:
- "postgres"
- "-c"
- "max_stack_depth=7680"
volumes:
pgdata:
networks:
network1:
我的桌子:
create TABLE dictionary.language (
id bigserial NOT NULL PRIMARY KEY,
lang_name text NOT NULL
);
create TABLE dictionary.level (
id bigserial NOT NULL PRIMARY KEY,
level smallint NOT NULL
);
create TABLE dictionary.word (
id bigserial NOT NULL PRIMARY KEY,
name text,
translation text,
language_abbr_id bigint references language(id),
level_id smallint references level(id),
last_reviewed TIMESTAMP not null DEFAULT clock_timestamp()
);
create TABLE dictionary.examples (
id bigserial NOT NULL PRIMARY KEY,
sentence text NOT NULL,
translation text NOT NULL,
word_id bigint references word(id)
);
create TABLE dictionary.user (
id bigserial NOT NULL PRIMARY KEY,
username text NOT NULL,
password text NOT NULL
);
CREATE OR REPLACE FUNCTION dictionary.set_last_reviewed()
RETURNS trigger as
$$
BEGIN
INSERT INTO dictionary.word(last_reviewed)
VALUES(now());
RETURN NEW;
END;
$$
LANGUAGE 'plpgsql';
create trigger updateLastReviewedAfterUpdate
before update on dictionary.word
for each row
execute procedure dictionary.set_last_reviewed();
create trigger updateLastReviewedAfterInsert
before insert on dictionary.word
for each row
execute procedure dictionary.set_last_reviewed();
我想在我的表中插入一些内容:
insert into word(id,name,translation,language_abbr_id,level,last_reviewed) values(1,'fabulous', 'bajeczny, fantastyczny' , 1 , 6 , '11/09/2018 23:58' );
然后我得到一个错误:
查询执行失败
原因:SQL错误[54001]:错误:超出堆栈深度限制提示:
增加配置参数“最大堆栈深度”(当前)
7680kB),在确保平台的堆栈深度限制足够后。
其中:SQL语句“插入到dictionary.word中(上次审查)
字典。单词(上次复习)
字典。单词(上次复习)
字典。单词(上次复习)
字典。单词(上次复习)
它可能与我的触发器有关吗?我不知道如何解决我的问题您的插入触发器将一个新行插入表
word
,这反过来触发插入触发器,插入一个新行触发触发器……等等
据我所知,您只是试图为该列设置一个默认值
通过更改触发器处理的记录,而不是将一个全新的行插入到表中,可以实现这一点:
只需将触发器更改为:
CREATE OR REPLACE FUNCTION dictionary.set_last_reviewed()
RETURNS trigger as
$$
BEGIN
new.last_reviewed := now();
RETURN NEW;
END;
$$
LANGUAGE plpgsql;
VALUES(now())" PL/pgSQL function set_last_reviewed() line 3 at SQL statement SQL statement "INSERT INTO
VALUES(now())" PL/pgSQL function set_last_reviewed() line 3 at SQL statement SQL statement "INSERT INTO
VALUES(now())" PL/pgSQL function set_last_reviewed() line 3 at SQL statement SQL statement "INSERT INTO
VALUES(now())" PL/pgSQL function set_last_reviewed() line 3 at SQL statement ...
CREATE OR REPLACE FUNCTION dictionary.set_last_reviewed()
RETURNS trigger as
$$
BEGIN
new.last_reviewed := now();
RETURN NEW;
END;
$$
LANGUAGE plpgsql;