fix: Prevent overwriting existing file during `persist`#3088

Merged

feast-ci-bot merged 5 commits intofeast-dev:masterfrom felixwang9817:saved_dataset

Aug 19, 2022

+165-22

Commits on Aug 16, 2022

Prevent overwriting existing file for file offline store
felixwang9817
committed

Commits on Aug 17, 2022

Add from_data_source method
felixwang9817
committed

Commits on Aug 18, 2022