column exclusion - properly handle schema changes #1512
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Column exclusions works by removing columns from the schema we fetch of the source table. This exclusion was not being done in the code path for schema changes [where we fetch the schema again], causing a disconnect and normalize to fail.
Fixed by moving the exclusion code to a separate function and making both code paths use it. Also CDC handles excluded columns earlier to prevent spurious logs.