afilipchik opened a new pull request #1524: Adding a way to post process schema after it is fetched URL: https://github.com/apache/incubator-hudi/pull/1524 ## What is the purpose of the pull request This PR adds extension point to SchemaProvider. Sometimes it is needed to postprocess schemas after they are fetched from the external sources. Some examples of postprocessing: - make sure all the defaults are set correctly. - insert marker columns into records with no fields (no writable as parquest) - ... ## Brief change log - Added SchemaPostProcessor - refactored SchemaProvider to use SchemaPostProcessor and load schemas when constructed. - Updated current schemas providers to use ## Verify this pull request This change added tests and can be verified as follows: - Added TestSchemaPostProcessor ## Committer checklist - [ ] Has a corresponding JIRA in PR title & commit - [ ] Commit message is descriptive of the change - [ ] CI is green - [ ] Necessary doc changes done or have another open PR - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.
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