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From: Mark Dilger <[email protected]>
To: Pavel Stehule <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: proposal: schema variables
Date: Wed, 1 Nov 2017 11:03:28 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAFj8pRDY+m9OOxfO10R7J0PAkCCauM-TweaTrdsrsLGMb1VbEQ@mail.gmail.com>
References: <CAFj8pRDY+m9OOxfO10R7J0PAkCCauM-TweaTrdsrsLGMb1VbEQ@mail.gmail.com>
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> Comments, notes?

How would variables behave on transaction rollback?

CREATE TEMP VARIABLE myvar;
SET myvar := 1;
BEGIN;
SET myvar := 2;
COMMIT;
BEGIN;
SET myvar := 3;
ROLLBACK;
SELECT myvar;

How would variables behave when modified in a procedure
that aborts rather than returning cleanly?


mark


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