aokolnychyi opened a new pull request #30558:
URL: https://github.com/apache/spark/pull/30558
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### What changes were proposed in this pull request?
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This PR adds a new batch to the optimizer for executing rewrite rules for v2
data sources.
### Why are the changes needed?
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Right now, we have a special place in the optimizer where we construct v2
scans. As time shows, we need more rewrite rules that would be executed after
the operator optimization and before any stats-related rules for v2 tables. Not
all rules will be specific to reads. One option is to rename the current batch
into something more generic but it would require changing quite some places.
Moreover, the existing batch contains some non-V2 logic as well. That's why it
seems better to introduce a new batch and use it for all data source v2
rewrites.
### Does this PR introduce _any_ user-facing change?
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No.
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The change is trivial and SPARK-23889 will depend on it.
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