|Resolved||None||T52911 Support transitive queries|
|Resolved||None||T54387 Special page for querying by one property and value|
|Declined||Lydia_Pintscher||T54385 Query by one property and one value ("simple queries") (tracking)|
|Declined||None||T73500 [Task] DBAL adapter for QueryInterface in WB DB|
I've tackled the bulk of this item in https://github.com/wmde/WikibaseDatabase/pull/60
This still needs to be done before the bug can be closed: https://github.com/wmde/WikibaseDatabase/issues/59
In working on this, I found two further things that need doing before we can use the WB DB code in QueryEngine:
It seems quite likely we will need to add further things to WB DB in the future. Creating and mainting our own thing while we could use a proven solution adds a lot of extra cost.