yuxiqian opened a new pull request, #3665:
URL: https://github.com/apache/flink-cdc/pull/3665
This closes FLINK-36596. Requires FLINK-36461 being merged first.
As described in docs, omitting `transform[*].projection` field in YAML
definition should be equivalent to `projection: \*` expression. However, now
schema change events will be dropped when there are no projection fields
explicitly written down. For example, the following definition:
```yaml
transform:
- source-table: db.tbl
filter: x > 0
```
could not apply upstream schema change events to downstream due to the
lacking of `projection` block, which would be surprising.
Unifying the syntax of `projection: \*` and omitting `projection` field
should fix this.
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