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alter table ... exchange partition ... does not forbid operations between clustered and nonclustered table #60805
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
> create table ta (pk int not null, ex int not null, primary key (pk, ex) nonclustered) partition by range(pk) (PARTITION p1 values less than (10));
> create table tb (pk int not null, ex int not null, primary key (pk, ex) clustered);
> insert into ta values(1, 2);
> alter table ta exchange partition p1 with table tb;
> admin check table ta;
2. What did you expect to see? (Required)
We should reject exchange partition when two tables have the different pk types (nonclustered vs clustered).
3. What did you see instead (Required)
> alter table ta exchange partition p1 with table tb; --- successed
Query OK, 0 rows affected
Time: 0.058s
> admin check table ta; -- but data corrupted
(1105, '[components/tidb_query_executors/src/table_scan_executor.rs:425]: Data is corrupted, missing data for NOT NULL column (offset = 0)')
4. What is your TiDB version? (Required)
master, But I think it affect all versions
Activity
3 remaining items
ddl, partition: fix exchange partition between clustered table with n…
bb7133 commentedon Apr 25, 2025
I checked all the test plans before we made
EXCHANGE PARTITIONGA...unfortunately clustered/non-clustered indexes are missing.@mjonss @Defined2014 Do you think this should be a major or critical bug?
bb7133 commentedon Apr 25, 2025
I'll set it to 'critical' due to the corrupted data.
ddl, partition: fix exchange partition between clustered table with n…
ddl, partition: fix exchange partition between clustered table with n…
ddl, partition: fix exchange partition between clustered table with n…