Re: Behavior change around triggers between 3.19 and 3.30

Graham Holden <SQLite-xBROCQ2OzI4qxzdet/[email protected]>
Newsgroups gmane.comp.db.sqlite.general
Message-ID <[email protected]>
Thursday, January 30, 2020, 12:24:40 PM, Dominique Devienne <[email protected]> wrote:

> The strange thing though, is that I can't repro on a small example.
> Despite using not_there in the trigger, and doing DML and ALTER TABLE,
> still doesn't fail the same way as in production. What could be the cause? --DD

I suspect it may only kick-in if you use ALTER TABLE to rename either
a table or column. As I understand it, the old behaviour was to JUST
rename the table/column; the new behaviour also scan triggers etc. and
renames any references to the table/column as well. Since a new column
cannot (shouldn't?) be referenced by a trigger, there's no real need
to check them.

Graham


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