feat: change tracking enabled table support merge into

[zhyass]

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Summary

mysql> create table t1(a int, b int);
Query OK, 0 rows affected (0.08 sec)

mysql> create table t2(a int, b int);
Query OK, 0 rows affected (0.06 sec)

mysql> insert into t2 values(2,2),(3,3),(4,4);
Query OK, 3 rows affected (0.09 sec)

mysql> insert into t1 values(1,1),(2,3),(3,3);
Query OK, 3 rows affected (0.09 sec)

mysql> create stream s1 on table t1 append_only = false;
Query OK, 0 rows affected (0.10 sec)

mysql> create stream s2 on table t1 append_only = true;
Query OK, 0 rows affected (0.10 sec)

mysql> set enable_experimental_merge_into = 1;
Query OK, 0 rows affected (0.01 sec)

mysql> merge into t1 using t2 on t1.a=t2.a when matched and t2.a=2 then update set t1.b=t2.b when matched
and t2.a=3 then delete when not matched then insert *;
+-------------------------+------------------------+------------------------+
| number of rows inserted | number of rows updated | number of rows deleted |
+-------------------------+------------------------+------------------------+
|                       1 |                      1 |                      1 |
+-------------------------+------------------------+------------------------+
1 row in set (0.37 sec)
Read 6 rows, 308.00 B in 0.268 sec., 22.35 rows/sec., 1.12 KiB/sec.

mysql> select * from s1 order by a,b;
+------+------+---------------+----------------------------------------+------------------+
| a    | b    | change$action | change$row_id                          | change$is_update |
+------+------+---------------+----------------------------------------+------------------+
|    2 |    2 | INSERT        | 9cf6e0ae54a642909aa32c393c5c9428000001 |                1 |
|    2 |    3 | DELETE        | 9cf6e0ae54a642909aa32c393c5c9428000001 |                1 |
|    3 |    3 | DELETE        | 9cf6e0ae54a642909aa32c393c5c9428000002 |                0 |
|    4 |    4 | INSERT        | b28fd41a8b824529833626c460125664000000 |                0 |
+------+------+---------------+----------------------------------------+------------------+
4 rows in set (0.33 sec)
Read 6 rows, 342.00 B in 0.140 sec., 42.9 rows/sec., 2.39 KiB/sec.

mysql> select * from s2 order by a,b;
+------+------+---------------+------------------+----------------------------------------+
| a    | b    | change$action | change$is_update | change$row_id                          |
+------+------+---------------+------------------+----------------------------------------+
|    4 |    4 | INSERT        |                0 | b28fd41a8b824529833626c460125664000000 |
+------+------+---------------+------------------+----------------------------------------+
1 row in set (0.20 sec)
Read 3 rows, 125.00 B in 0.089 sec., 33.61 rows/sec., 1.37 KiB/sec.

• Fixes #[Link the issue here]

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

---

This change is 

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• tag: pr-14900-a303a6e

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[JackTan25]

LGTM

[github-actions]

Docker Image for PR

• tag: pr-14900-2263a56

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