[Bug]: Redundant oc_cards.cards_abid index

[ChristophWurst]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

create index cards_abid
    on nextclouddev.oc_cards (addressbookid);

create index cards_abiduri
    on nextclouddev.oc_cards (addressbookid, uri);

cards_abiduri makes cards_abid. INSERT and DELETE queries need two indices to be maintained. UPDATE should not be affected as long as we ever write a new addressbookid or uri.

Tested with 26 (prod) and master/29 (dev).

Steps to reproduce

1. Install Nextcloud

Expected behavior

Efficient database index usage

Installation method

None

Nextcloud Server version

26

Operating system

None

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response