Thanks Gordan. This is a cluster and I have slaves. How does the ALGORITHM=INPLACE, LOCK=NONE; configuration impact the slaves ? On Sat, Mar 22, 2025 at 7:41 PM Gordan Bobic <gordan@shatteredsilicon.net> wrote:
ALTER TABLE ... ALGORITHM=INPLACE, LOCK=NONE;
Unless you have downstream slaves that are lag sensitive. They you'll probably have to pt-online-schema-change with drop-swap FK handling, but that is not entirely risk-free (you might get FK violations during the drop-swap).
On Sat, 22 Mar 2025, 19:28 edi mari via discuss, < discuss@lists.mariadb.org> wrote:
Hi, I have a 200GB table with a foreign key constraint, and I need to drop an existing index and add a non-unique index to it.
What is the best approach to do this with minimal impact on users?
Thanks Edi _______________________________________________ discuss mailing list -- discuss@lists.mariadb.org To unsubscribe send an email to discuss-leave@lists.mariadb.org