最近我在 portgres 上使用分区表。我有一些关于 INSERT RETURNING id 的问题。这是我的触发器函数和触发器:
CREATE OR REPLACE FUNCTION f_port_vessels_insert_trigger_auto()
RETURNS TRIGGER AS $$
DECLARE
insert_sql TEXT;
week_num INTEGER;
year_num INTEGER;
partition_table VARCHAR;
prefix_partition_table VARCHAR :='port_vessels_p_';
BEGIN
SELECT CAST (EXTRACT(WEEK FROM NEW.created_at) AS INTEGER) INTO week_num;
SELECT CAST (EXTRACT(YEAR FROM NEW.created_at) AS INTEGER) INTO year_num;
partition_table := prefix_partition_table || year_num || '_' || week_num;
insert_sql := 'INSERT INTO ' || partition_table || ' VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)';
EXECUTE insert_sql
USING NEW.id, NEW.port_id, NEW.vessel_id,
NEW.last_position_updated_at, NEW.nav_status_code,
NEW.created_at, NEW.updated_at, NEW.berth_id,
NEW.berth_shift_id;
RETURN NULL;
END;
$$
LANGUAGE plpgsql;
CREATE TRIGGER f_port_vessels_insert_trigger
BEFORE INSERT ON port_vessels
FOR EACH ROW EXECUTE PROCEDURE f_port_vessels_insert_trigger_auto();
我用谷歌搜索了所有这些，并看到一个解决方案创建了一个 View ，创建了触发器insert instead on the view instead of table。我认为如果我们只在数据库上工作很好，但我在 Rails 中使用 Active Record，我不想更多地改变我的模型，所以有人遇到过这种情况吗？或者有其他方法解决这个问题。
最佳答案
与其重新发明轮子，您应该(在 PostgreSQL v10 或更高版本上)使用 declarative partitioning .
关于ruby-on-rails - INSERT RETURNING 和分区 POSTGRESQL，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47469504/