Various tweaks and improvements to the Core#76

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nt-gt wants to merge 6 commits intomasterfrom better-reuse

+1,123-309

Commits on Jun 3, 2021

Remove now unused code
Niels Thykier
committed
Refactor ExtendedRequest initialization
Niels Thykier
committed
Refactor query generation
Niels Thykier
committed
Joins: Forgive primary table being present in apply joins
Niels Thykier
committed
Alternative method to create custom queries
Niels Thykier
committed

Commits on Jun 4, 2021

Create API for more flexible queries
Niels Thykier
committed