This is what I hacked quickly last night, what you guys think?
CREATE OR REPLACE FUNCTION something.ziew_partition_insert() RETURNS TRIGGER AS
$_$
DECLARE
partition_table_name varchar;
old_partition_table_name varchar;
BEGIN
SELECT 'something_partitions.ziew_'||to_char(NEW.logtime, 'IYYY_MM')
INTO partition_table_name;
BEGIN
EXECUTE 'INSERT INTO '||partition_table_name||' (SELECT
(something.ziew '||quote_literal(NEW)||').*)';
EXCEPTION
WHEN undefined_table THEN
BEGIN
SET client_min_messages = error;
EXECUTE 'CREATE TABLE '||partition_table_name||'() INHERITS
(something.ziew)';
EXECUTE 'ALTER TABLE '||partition_table_name||' ADD PRIMARY
KEY (id)';
EXECUTE 'CREATE INDEX something_time'|| to_char(NEW.logtime,
'IYYY_MM')||' ON '||partition_table_name||'(logtime)';
SELECT 'something_partitions.ziew_'||to_char(NEW.logtime-'2
months'::interval, 'IYYY_MM') INTO old_partition_table_name;
-- don't care if it fails
BEGIN
EXECUTE 'DROP TABLE '||old_partition_table_name;
EXCEPTION
WHEN others THEN
--- in place for NOP
old_partition_table_name := '';
END;
EXECUTE 'INSERT INTO '||partition_table_name||' (SELECT
(something.ziew '||quote_literal(NEW)||').*)';
EXCEPTION
WHEN others THEN
RAISE EXCEPTION 'somethings wrong %',SQLERRM;
RETURN NULL;
END;
END;
RETURN NULL;
END;
$_$ LANGUAGE 'plpgsql';
