PostgreSQL的分区表建立(3)

来源：未知责任编辑：责任编辑发表时间:2014-01-25 11:38　点击:次

ELSIF ( NEW.create_time >= DATE '2012-08-01' AND

NEW.create_time < DATE '2012-09-01' ) THEN

INSERT INTO test.parent_table_2012_08 VALUES (NEW.id,NEW.name,NEW.create_time);

ELSIF ( NEW.create_time >= DATE '2012-09-01' AND

NEW.create_time < DATE '2012-10-01' ) THEN

INSERT INTO test.parent_table_2012_09 VALUES (NEW.id,NEW.name,NEW.create_time);

ELSIF ( NEW.create_time >= DATE '2012-10-01' AND

NEW.create_time < DATE '2012-11-01' ) THEN

INSERT INTO test.parent_table_2012_10 VALUES (NEW.id,NEW.name,NEW.create_time);

ELSIF ( NEW.create_time >= DATE '2012-11-01' AND

NEW.create_time < DATE '2012-12-01' ) THEN

INSERT INTO test.parent_table_2012_11 VALUES (NEW.id,NEW.name,NEW.create_time); www.2cto.com

ELSIF ( NEW.create_time >= DATE '2012-12-01' AND

NEW.create_time < DATE '2013-01-01' ) THEN

INSERT INTO test.parent_table_2012_12 VALUES (NEW.id,NEW.name,NEW.create_time);

ELSE

RAISE EXCEPTION 'Date out of range.Fix the test.parent_table_insert_trigger() function!';

END IF;

RETURN NULL;

END;

LANGUAGE plpgsql;

4.创建触发器

CREATE TRIGGER tri_insert_parent_table

BEFORE INSERT ON test.parent_table

FOR EACH ROW EXECUTE PROCEDURE test.tri_parent_tab_insert();

5.测试

至此就OK了。前端插入时只要插入主表就可以自动将数据按时间分类分插到子表里去。

插入一定的测试数据，来看看效果

kenyon=# select count(1) from test.parent_table_2012_03;

www.2cto.com

count