Re: Bug in PL/pgSQL GET DIAGNOSTICS?
От | Manfred Koizar |
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Тема | Re: Bug in PL/pgSQL GET DIAGNOSTICS? |
Дата | |
Msg-id | 3d3cpusfk97kpk9idglerikktgfb43m15g@4ax.com обсуждение исходный текст |
Ответ на | Re: Bug in PL/pgSQL GET DIAGNOSTICS? (Bruce Momjian <pgman@candle.pha.pa.us>) |
Ответы |
Re: Bug in PL/pgSQL GET DIAGNOSTICS?
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Список | pgsql-hackers |
On Sat, 28 Sep 2002 13:41:04 -0400 (EDT), Bruce Momjian <pgman@candle.pha.pa.us> wrote: >Does anyone else have a common rule that would return incorrect results >using the proposed rules? CREATE VIEW twotables ASSELECT ... FROM table1 INNER JOIN table2 ON ... ; CREATE RULE twotables_insert AS -- INSERT ruleON INSERT TO twotables DO INSTEAD ( INSERT INTO table1 VALUES (new.pk,new.col1); INSERT INTO table2 VALUES (new.pk, new.col2)); CREATE RULE twotables_update AS -- UPDATE ruleONUPDATE TO twotables DO INSTEAD ( UPDATE table1 SET col1 = new.col1 WHERE pk = old.pk; UPDATE table2 SET col2= new.col2 WHERE pk = old.pk); CREATE RULE twotables_delete AS -- DELETE ruleON DELETE TO twotables DO INSTEAD ( DELETE FROM table1 WHERE pk = old.pk; DELETE FROM table2 WHERE pk = old.pk); CREATE VIEW visible ASSELECT ... FROM table3WHERE deleted = 0; CREATE RULE visible_delete AS -- DELETE ruleON DELETE TO visible DO INSTEAD UPDATE table3 SET deleted = 1 WHEREpk = old.pk; ServusManfred
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