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Re: Sharing data between stored functions?

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From: inspector morse [mailto:inspectormorse86@xxxxxxxxx] 
Sent: Thursday, March 05, 2015 10:37 AM
To: Adrian Klaver
Cc: Merlin Moncure; Igor Neyman; pgsql-general@xxxxxxxxxxxxxx
Subject: Re:  Sharing data between stored functions?

I'm confused with what Igor said. He said to create the temporary table with "on commit preseve rows" but in the documentation it states that when a session ends (like after each request in a web application when not using persistent connections), the temporary table would automatically be dropped.
Just to test it, I created the following in a new session:
CREATE TEMPORARY TABLE http_querystring_values (key TEXT NOT NULL PRIMARY KEY, value TEXT NOT NULL) ON COMMIT DELETE ROWS;
However, none of the other sessions can find this table. This is correct according to the documentation.

Is there any reason why Postgresql does not implement the SQL standard's version of GLOBAL temporary tables?
I also don't like the idea of passing the "state" around to functions. I'd rather just query a table OR read some global variable. The JSON /HSTORE syntax looks horrible, I just like to stick with the simplicity of a table.

----------------------------
Sorry, my reply was based on (old) Oracle knowledge.
Now, I'm wondering too, why PG didn't implement such basic (at least to me) feature.

Regards,
Igor Neyman


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