Hi All,
I have some news after testing :
-- with same config an temporary imdb is OK, i got discards
Minimally Logged DMLs
by ULC Discards 230.4 87.8 1843 99.6 %
-- a new db , not temporary, not imdb , created with durability = no_recovery , dml_logging = minimal
I got discards, too
-- a NEW temporary, not imdb, AND created with durability = no_recovery , dml_logging = minimal
I got discards , too
-- Attempting to apply dml_logging option to an existing tempdb (with dbo use only as explained in doc) -> I never got discards
And , when executing sp_helpdb , you can notice something new for me , look at tempdbtest :
| tempdb_imdb | user created temp db, minimal dml logging, in-memory, allow wide dol rows |
| tempdb_user | user created temp db, minimal dml logging, allow wide dol rows |
| tempdbtest | user-created enhanced performance temp db, minimal dml logging, allow wide dol rows |
In 15.5 , I succeeded to get discards; without need of recreating from scratch my temporary db, and I don't rember this "enhanced performance tempdb".
???
Regards
Marc