| Interesting. I wonder what I am doing wrong. I will try and setup the database again and see if I can get it to work.
thank you for testing it out for me.
Richard On Tue, May 21, 2013 at 11:03 PM, Richard Onorato <richard_onorato@xxxxxxxxx> wrote:
I am wanting to partition my data based on a mod of one of the bigint columns, but when I run my insert test all the data goes into the base table and not the partitions. Here is what the table looks like:
CREATE table MyMappingTable ( id bigserial NOT NULL, c1 bigInt NOT NULL, c2 bigInt NOT NULL,
c3 bigint NOT NULL, count bigint DEFAULT 1,
createdTime timestamp with time zone default CURRENT_TIMESTAMP,
CONSTRAINT MyMappingTable_index PRIMARY KEY (id) ) with (OIDS=FALSE);
CREATE TABLE MyMappingTableT1 (PRIMARY KEY (id), CHECK((c1 % 5) = 0)) INHERITS (MyMappingTable);
CREATE TABLE MyMappingTableT2 (PRIMARY KEY (id), CHECK((c1 % 5) = 1)) INHERITS (MyMappingTable); CREATE TABLE MyMappingTableT3 (PRIMARY KEY (id), CHECK((c1 % 5) = 2)) INHERITS (MyMappingTable);
CREATE TABLE MyMappingTableT4 (PRIMARY KEY (id), CHECK((c1 % 5) = 3)) INHERITS (MyMappingTable); CREATE TABLE MyMappingTableT5 (PRIMARY KEY (id), CHECK((c1 % 5) = 4)) INHERITS (MyMappingTable);
Here is the trigger function that I added to the database:
CREATE OR REPLACE FUNCTION my_mapping_table_insert_trigger()
RETURNS trigger AS $$ BEGIN IF ( (NEW.c1 % 5) = 0 ) THEN
INSERT INTO MyMappingTableT1 VALUES (NEW.*); ELSIF ( (NEW.c1 % 5) = 1 ) THEN INSERT INTO MyMappingTableT2 VALUES (NEW.*);
ELSIF ( (NEW.c1 % 5) = 2 ) THEN INSERT INTO MyMappingTableT3 VALUES (NEW.*);
ELSIF ( (NEW.c1 % 5) = 3 ) THEN
INSERT INTO MyMappingTableT4 VALUES (NEW.*); ELSIF ( (NEW.c1 % 5) = 4 ) THEN
INSERT INTO MyMappingTableT5 VALUES (NEW.*);
ELSE
RAISE EXCEPTION 'c1 mod out of range. Something wrong with the my_mapping_table_insert_trigger() function!';
END IF; RETURN NULL; END; $$
LANGUAGE plpgsql;
Here is the Trigger that I added to the table:
CREATE TRIGGER insert_my_mapping_table_trigger
BEFORE INSERT ON MyMappingTable FOR EACH ROW EXECUTE PROCEDURE my_mapping_table_insert_trigger();
SET constraint_exclusion = ON;
Regards,
Richard
I tried your test case, its working fine from my end and populating data properly to partition childs.
insert into mymappingtable values (1,7,20,30,1,now());
insert into mymappingtable values (2,6,20,30,1,now()); insert into mymappingtable values (3,8,20,30,1,now()); insert into mymappingtable values (4,9,20,30,1,now()); insert into mymappingtable values (5,10,20,30,1,now());
postgres=# \dt+ MyMappingTable* List of relations Schema | Name | Type | Owner | Size | Description --------+------------------+-------+----------+------------+-------------
public | mymappingtable | table | postgres | 0 bytes | public | mymappingtablet1 | table | postgres | 8192 bytes | public | mymappingtablet2 | table | postgres | 8192 bytes | public | mymappingtablet3 | table | postgres | 8192 bytes |
public | mymappingtablet4 | table | postgres | 8192 bytes | public | mymappingtablet5 | table | postgres | 8192 bytes |
--- Regards, Raghavendra
EnterpriseDB Corporation |
