On Thu, Feb 20, 2025 at 8:07 AM Dominique Devienne <ddevienne@xxxxxxxxx> wrote:
Hi. I've just read https://www.dbi-services.com/blog/postgresql-18-virtual-generated-columns/and I'm wondering whether there will be a way to ALTER existing STORED generated columns, to be virtual? W/o rewriting the whole table that is.
What about dropping the existing stored column then adding the new virtual column?
You won't get any disk space saving for existing records, but it's not going to rewrite the table.
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