Vanillaxi opened a new pull request, #1141:
URL: https://github.com/apache/incubator-seata-go/pull/1141
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> Depends on #1139. This PR currently includes the #1139 commits and will be
rebased onto `master` after #1139 is merged.
**What this PR does**:
This PR ensures that semantic batch INSERT, UPDATE, and DELETE execution
correctly handles:
- transaction mode routing based on the transaction context selected at
`Begin`
- paired before/after images and no-op item filtering
- lock keys without empty table-level entries
- deterministic INSERT key extraction for placeholders, functions, generated
keys, and composite primary keys
- stable ordered primary key handling across image queries, undo SQL,
parameter binding, and dirty-data comparison
- phase-two dirty data validation for INSERT, UPDATE, and DELETE
- reverse rollback of multiple undo items serialized in one branch undo log
- whole-transaction rollback when an owned batch fails partway through
execution
**Which issue(s) this PR fixes**:
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Part of #1128
**Special notes for your reviewer**:
This PR preserves the execution model introduced by #1139: batch items are
executed sequentially through the existing single-statement AT executors in one
local transaction.
It does not merge business SQL, image queries, or undo SQL.
Tested with:
`go test ./pkg/datasource/sql/exec/at ./pkg/datasource/sql/undo/base
./pkg/datasource/sql/undo/mysql ./pkg/datasource/sql/util -count=1`
**Does this PR introduce a user-facing change?**:
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```release-note
Ensure MySQL semantic batch INSERT, UPDATE, and DELETE operations in AT mode
generate correct images, lock keys, undo logs, and reverse rollback behavior.
```
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