Dear Emmanuel, I spent now more than a week trying to understand why uniqueMember index doesn't work and still have no progress in understanding the problem.
With a defined index on uniqueMember my query brings empty result *(**&* *(*objectclass*=*groupOfUniqueNames*)* *(**|* *(*uniqueMember*=*cn=galexisLoginPOS*)* *(*uniqueMember*=*cn=customerGalexis*)* *(*uniqueMember*=*cn=customerAlloga*)* *(*uniqueMember*=*cn=isDemo*)* *)* *)* Without index the query brings correct results but is slow, 300ms. Is there any description about how to define an index on uniqueMember. We have several other non-standard indexed attributes and all of them are working. As I understand it should be possible to define an index on both member and uniqieMember. So I have 2 questions: 1. Is it correct that this query is slow because there is no index? 2. How should I define such an index? Below is the current index definition dn: ads-indexAttributeId=uniqueMember,ou=indexes,ads-partitionId=system,ou=parti tions,ads-directoryServiceId=default,ou=config ads-indexHasReverse: FALSE entryCSN: 20190430090357.476000Z#000000#001#000000 objectClass: ads-index objectClass: top objectClass: ads-jdbmIndex objectClass: ads-base createTimestamp: 20190430090357.476Z creatorsName: 0.9.2342.19200300.100.1.1=admin,2.5.4.11=system ads-indexAttributeId: uniqueMember ads-enabled: TRUE entryUUID: dcd2fa31-5ee0-48fb-9d3e-30487957045a entryParentId: fdf6f3a6-dfaf-4b1a-962c-faa14328d1ae Could you please advice? -- Sergey Mikhno