I created a CMD_UTILITY, which upon being executed by the user should do the
following atomically:
1- drops a table
2- deletes from another table all rows with a certain criterion: "DELETE
FROM pg_t1 WHERE att = val"
3- deletes from a third table all rows with a certain criterion: "DELETE
FROM pg_t2 WHERE att = val"

I do the first step using ProcessUtility(). How can i do the 2nd/3rd steps?
Any suggestions?

I tried calling exec_simple_query() but this didn't work. I am getting an
error "cannot drop active portal"


Thanks a lot,
ehab

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Ehab Galal wrote:
> I created a CMD_UTILITY, which upon being executed by the user should do
> the following atomically:
> 1- drops a table
> 2- deletes from another table all rows with a certain criterion: "DELETE
> FROM pg_t1 WHERE att = val"
> 3- deletes from a third table all rows with a certain criterion: "DELETE
> FROM pg_t2 WHERE att = val"
>
> I do the first step using ProcessUtility(). How can i do the 2nd/3rd steps?
> Any suggestions?

Don't do that. Instead, use performDeletion and register your tuples in
the pg_t1 and pg_t2 catalogs in pg_depend (using recordDependencyOn).

--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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