Enable SourceLookup to leverage sequential stored fields reader#63035

Merged

cbuescher merged 6 commits intoelastic:masterfrom

cbuescher:issue-62621

Oct 6, 2020

Commits on Sep 30, 2020

wip
Christoph Büscher
committed
change in LeafSourceLookup
Christoph Büscher
committed
Always check if can use optimized field reader
Christoph Büscher
committed
Only when reader changes
Christoph Büscher
committed

Commits on Oct 1, 2020

simplify
Christoph Büscher
committed
Remove TODO
Christoph Büscher
committed