Proposed changes for indexing.

[rohit-armorikar]

We have added few proposal for required indexing on tables.
Please review and let us know, which index out of the proposed one will help us for performance improvement.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: rohit-armorikar (3a2e459, 0e6b404, bb94fb5, feec1f7)

[strehle]

@rohit-armorikar Thank you! We will check, please sign CLA as required step to accept your PR, thanks in advance

[strehle]

ok, you can and should run tests before the PR, see unit test failing because of index

org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception; nested exception is org.flywaydb.core.internal.command.DbMigrate$FlywayMigrateException: Migration V4_113__Add_Index_user_group_membership_groups.sql failed
-------------------------------------------------------------------
SQL State : 42000
Error Code : 1064
Message : (conn=53) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IF EXISTS idx_users_zone_id_created ON users' at line 1
Location : org/cloudfoundry/identity/uaa/db/mysql/V4_113__Add_Index_user_group_membership_groups.sql (/root/uaa/server/build/resources/main/org/cloudfoundry/identity/uaa/db/mysql/V4_113__Add_Index_user_group_membership_groups.sql)

We run on MYSQL 5 and 8 and both fail.

With docker and this help you can run tests yourself.
https://github.com/cloudfoundry/uaa?tab=readme-ov-file#mysql

[rohit-armorikar]

@strehle Thanks for your input, we have corrected the changes and pushed the updates.
Please let us know if this is fine now.