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MDEV-28576 RENAME COLUMN with NOCOPY algorithm leads to corrupt partitioned table

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10.5 part: test cases and comments.
The code is in the merge commit 74fe1c44aa

When f.ex. table is partitioned by HASH(a) and we rename column `a' to
`b' partitioning filter stays unchanged: HASH(a). That's the wrong
behavior.

The patch updates partitioning filter in accordance to the new columns
names. That includes partition/subpartition expression and
partition/subpartition field list.
This commit is contained in:
Aleksey Midenkov
2022-10-07 00:45:21 +03:00
parent 74fe1c44aa
commit fa0cada95b
6 changed files with 135 additions and 1 deletions
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sql/field.h
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@ -5661,7 +5661,7 @@ inline bool Row_definition_list::eq_name(const Spvar_definition *def,
class Create_field :public Column_definition
{
public:
LEX_CSTRING change; // If done with alter table
LEX_CSTRING change; // Old column name if column is renamed by ALTER
LEX_CSTRING after; // Put column after this one
Field *field; // For alter table
const TYPELIB *save_interval; // Temporary copy for the above