Hi, all. When pg_upgrading from PG 11 to 13, a file
analyze_new_cluster.sh was generated in the current directory
which ran vacuumdb --all
--analyze-in-stages
When upgrading from 13 to
15.3 no such file was generated, which made me believe it was no
longer necessary. Alas, it wasn't the case. The database was
extremely slow after the upgrade chewing up 100% cpu time, and
it wasn't until I manually ran vacuumdb"
--all --analyze-in-stages that cpu usage dropped. Was there a
knob that I missed, or is this just a bug in pg_upgrade 15?
Thanks.
