Transaction prevention - Mailing list pgsql-general

From Steve Baldwin
Subject Transaction prevention
Date
Msg-id CAKE1AiYUreZcQdgg76DK2ESAxuowf4OkLhUJyfVXc2or4Y25Vg@mail.gmail.com
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Responses Re: Transaction prevention
List pgsql-general
Hi,

If I have a user that is restricted to select access (only) on a single table, is there any way to prevent that user from starting a transaction?

The reason for the question is that the select-only user can block another session trying to run an alter table on that table if the select-only user runs their query in a transaction.

This happened to us recently where a migration script that was being run during a ci deployment 'hung' until the select-only user happened to disconnect. I'm wondering if we need to terminate any sessions from select-only users at the start of the migration, or if there is a better way.

Thanks,

Steve

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