Re: timestamp value
От | Ivan Horvath |
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Тема | Re: timestamp value |
Дата | |
Msg-id | 20020304094932.38297.qmail@web14703.mail.yahoo.com обсуждение исходный текст |
Ответ на | Re: timestamp value (Oliver Elphick <olly@lfix.co.uk>) |
Ответы |
Re: timestamp value
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Список | pgsql-novice |
Oliver, then what can i do -regarding timestamp- if i need to create such a routine, so called "batch-processing", which writes data to a table, or more tables at the same time? how can i ask the real timestamp value within a stored procedure? Ivan --- Oliver Elphick <olly@lfix.co.uk> wrote: > On Mon, 2002-03-04 at 07:45, Ivan Horvath wrote: > > Thanks for answer, > > > > here is the code of the stored procedure: > > > > DROP FUNCTION a_function(); > > > > CREATE FUNCTION a_function () RETURNS interval AS > ' > > In 7.2 you can now do CREATE OR REPLACE FUNCTION... > rather than DROP > followed by CREATE. > > > DECLARE > > process_time interval; > > BEGIN > > FOR i IN 1..10000 LOOP > > INSERT INTO unit (unit_name, mod_date) > > VALUES (''a'', current_timestamp); > > END LOOP; > > > > select into process_time max(mod_date) - > > min(mod_date) from unit; > > > > RETURN process_time; > > > > END;' > > LANGUAGE 'plpgsql'; > > > All operations within a plpgsql procedure happen > within a transaction > and within a transaction current_timestamp does not > change (by design). > So each separate call to this procedure will produce > 10000 identical > inserts. > > -- > Oliver Elphick > Oliver.Elphick@lfix.co.uk > Isle of Wight > http://www.lfix.co.uk/oliver > GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A > 614D 4C34 3E1D 0C1C > > "Give, and it will be given to you. A good > measure, > pressed down, taken together and running over, > > will be poured into your lap. For with the > same > measure that you use, it will be measured to > you." Luke 6:38 > __________________________________________________ Do You Yahoo!? Yahoo! Sports - sign up for Fantasy Baseball http://sports.yahoo.com
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