PostgreSQL 9.5分区表时插入/更新
我需要在分区表中实现(通过ON CONFLICT()更新)行PostgreSQL 9.5分区表时插入/更新,sql,postgresql,partitioning,upsert,Sql,Postgresql,Partitioning,Upsert,我需要在分区表中实现(通过ON CONFLICT()更新)行 到目前为止,我的尝试: 表格创建: CREATE TABLE public.my_tbl ( goid character varying(255) NOT NULL, timestamps timestamp without time zone[], somenumber numeric[], CONSTRAINT my_tbl_pkey PRIMARY KEY (goid) ) WITH ( OIDS=FALS
到目前为止,我的尝试:
表格创建:
CREATE TABLE public.my_tbl
(
goid character varying(255) NOT NULL,
timestamps timestamp without time zone[],
somenumber numeric[],
CONSTRAINT my_tbl_pkey PRIMARY KEY (goid)
)
WITH (
OIDS=FALSE
);
ALTER TABLE public.my_tbl
OWNER TO postgres;
表顺序:
CREATE SEQUENCE public.fixations_data_pkey_seq
INCREMENT 1
MINVALUE 1
MAXVALUE 9223372036854775807
START 1
CACHE 1;
ALTER TABLE public.fixations_data_pkey_seq
OWNER TO postgres;
表分区触发器,用于创建名为“tableyyyy_MM_DD”的新表,其中“yyy_MM_DD”-当前日期(查询执行日期):
在此之后,我可以在表中插入新行:
INSERT INTO my_tbl (goid, timestamps, somenumber)
VALUES ('qwe123SSsssa3', '{"2016-11-16 00:00:00", "2016-11-16 01:00:00"}', '{3, 12333}')
但当我想做一件事的时候:
INSERT INTO my_tbl (goid, timestamps, somenumber)
VALUES ('qwe123SSsssa3', '{"2016-11-16 02:00:00"}', '{999}')
ON CONFLICT (goid)
DO UPDATE
SET timestamps=array_append(my_tbl.timestamps::timestamp[], '2016-11-16 02:00:00'),
somenumber=array_append(my_tbl.somenumber,'999');
我得到了重复的PKEY错误我猜,我必须在触发器函数的第三个执行中添加冲突。但是我该怎么做呢?嗯,我已经将第三次执行更改为:
-- Insert row into table (with ON CONFLICT)--------------------------------------------
EXECUTE '
INSERT INTO ' || table_part || '
SELECT ( (' || QUOTE_LITERAL(NEW) || ')::' || TG_RELNAME || ' ).*
ON CONFLICT (goid)
DO UPDATE
SET timestamps=' || table_part || '.timestamps::timestamp[] || ' || QUOTE_LITERAL(NEW.timestamps) || ',
somenumber=' || table_part || '.somenumber::numeric[] || ' || QUOTE_LITERAL(NEW.somenumber) || '
';
RETURN NULL;
现在,当我执行查询时:
INSERT INTO my_tbl (goid, timestamps, somenumber)
VALUES ('potato_1', ARRAY['2016-11-16 12:00:00', '2016-11-16 15:00:00']::timestamp[], ARRAY[223, 211]::numeric[]);
没有任何错误,它按照我的预期扩展了数组类型的列我可以承认这是一个肮脏的解决方案,但它似乎有效
如果有人有更好的解决办法,我很乐意去看看
INSERT INTO my_tbl (goid, timestamps, somenumber)
VALUES ('potato_1', ARRAY['2016-11-16 12:00:00', '2016-11-16 15:00:00']::timestamp[], ARRAY[223, 211]::numeric[]);