luwei16 opened a new pull request, #68034:
URL: https://github.com/apache/doris/pull/68034
### What problem does this PR solve?
Issue Number: None
Related PR: None
Problem Summary: Predicate deletes only persist delete predicates and
therefore cannot produce row-level DELETE events. A merge-on-write unique table
with light delete enabled incorrectly used that path even when ROW binlog was
enabled, leaving downstream consumers with stale rows. Route these deletes
through row-bearing DELETE FROM USING execution, and reject any ROW-binlog
predicate delete that still reaches the legacy handler.
### Release note
Ensure DELETE on merge-on-write unique tables with ROW binlog emits
row-level DELETE events even when light delete is enabled. Predicate DELETE on
ROW-binlog tables now reports an explicit unsupported error.
### Check List (For Author)
- Test: Regression test, FE unit test, and manual test
- Regression test: row_binlog_p0/test_row_binlog_mow_light_delete
- Unit Test:
org.apache.doris.nereids.trees.plans.commands.DeleteFromCommandTest
- Manual test: verified ROW binlog DELETE events with historical values
disabled and enabled
- Behavior changed: Yes; MOW ROW-binlog deletes use row-bearing execution,
while unsupported predicate deletes fail explicitly
- Does this need documentation: No
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