Re:Velox: Meta's Unified Execution Engine [pdf]
by harshitgangal on Tuesday March 26, 2024 @02:50AM
(#39824869)
When Vitess was donated to CNCF, there was an internal push from within Google to migrate everything to Spanner.
I do not know any other reason.
Disclaimer: Vitess Maintainer
Vitess seemed to be working for them for a long time.