https://bugs.openldap.org/show_bug.cgi?id=9753
--- Comment #22 from Shawn McKinney smckinney@symas.com --- (In reply to Shawn McKinney from comment #21)
Setup test env, running 2.5 before the patch. 64-bit indexing not enabled.
Inserted 100K users, then updated their passwords.
Oh, and added this index:
index pwdChangedTime