source-oracle: use online
as default dictionary mode
#2500
Merged
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Description:
extract mode is better for long-term consistency since it supports schema changes, but it is really slow. online mode is much faster and it gives users a better first experience. If they hit an issue with schema changes, they can switch to extract mode, and theoretically they can switch back to online mode after the schema changes are captured.
Workflow steps:
(How does one use this feature, and how has it changed)
Documentation links affected:
(list any documentation links that you created, or existing ones that you've identified as needing updates, along with a brief description)
Notes for reviewers:
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This change is