MySQL  8.0.20
Source Code Documentation
alter_part_drop Class Reference

Class which handles the partition of states PART_TO_BE_DROPPED, PART_TO_BE_REORGED and PART_REORGED_DROPPED. More...

Inheritance diagram for alter_part_drop:
alter_part

Public Member Functions

 alter_part_drop (uint part_id, partition_state state, const char *table_name, trx_t *trx, dict_table_t **old, bool conflict)
 Constructor. More...
 
 ~alter_part_drop ()
 Destructor. More...
 
int try_commit (const TABLE *table, TABLE *altered_table, const dd::Partition *old_part, dd::Partition *new_part)
 Try to commit. More...
 
- Public Member Functions inherited from alter_part
virtual ~alter_part ()
 Virtual destructor. More...
 
virtual uint part_id () const
 Return the partition id. More...
 
virtual partition_state state () const
 Return the partition state. More...
 
dict_table_tnew_table ()
 Get the InnoDB table object for newly created partition if applicable. More...
 
void free_old_part (bool check_in_cache, const char *part_name)
 Set the freed old partition to nullptr to avoid dangling pointer. More...
 
virtual int prepare (TABLE *altered_table, const dd::Partition *old_part, dd::Partition *new_part)
 Prepare. More...
 
virtual void rollback ()
 Rollback. More...
 

Private Attributes

const bool m_conflict
 True if there is already a partition table with the same name. More...
 

Additional Inherited Members

- Protected Member Functions inherited from alter_part
 alter_part (trx_t *trx, uint part_id, partition_state state, const char *table_name, dict_table_t **old)
 Constructor. More...
 
bool build_partition_name (const dd::Partition *dd_part, bool temp, char *name)
 Build the partition name for specified partition. More...
 
int create (const char *part_name, dd::Partition *dd_part, TABLE *table, const char *tablespace, bool file_per_table, ib_uint64_t autoinc)
 Create a new partition. More...
 
- Protected Attributes inherited from alter_part
trx_t *const m_trx
 InnoDB transaction, nullptr if not used. More...
 
uint m_part_id
 Partition id in the table. More...
 
partition_state m_state
 Partition state of the partition on which this class will do operations. More...
 
const char * m_table_name
 Partitioned table name, in form of . More...
 
dict_table_t ** m_old
 The InnoDB table object for old partition. More...
 
dict_table_tm_new
 The InnoDB table object for newly created partition. More...
 

Detailed Description

Class which handles the partition of states PART_TO_BE_DROPPED, PART_TO_BE_REORGED and PART_REORGED_DROPPED.

See comments for alter_part_factory::create_for_reorg and alter_part_factory::create_for_non_reorg.

Constructor & Destructor Documentation

◆ alter_part_drop()

alter_part_drop::alter_part_drop ( uint  part_id,
partition_state  state,
const char *  table_name,
trx_t trx,
dict_table_t **  old,
bool  conflict 
)
inline

Constructor.

Parameters
[in]part_idPartition id in the table. This could be partition id for either old table or new table, callers should remember which one is applicable
[in]statePartition state of the partition on which this class will do operations. If this is for one partition in new table, the partition state is the same for both the new partition and the corresponding old partition
[in]table_namePartitioned table name, in the form of db/table, which already considers the charset
[in,out]trxInnoDB transaction
[in,out]oldInnoDB table object for old partition, default is nullptr, which means there is no corresponding object
[in]conflictTrue if there is already a partition table with the same name

◆ ~alter_part_drop()

alter_part_drop::~alter_part_drop ( )
inline

Destructor.

Member Function Documentation

◆ try_commit()

int alter_part_drop::try_commit ( const TABLE table,
TABLE altered_table,
const dd::Partition old_part,
dd::Partition new_part 
)
inlinevirtual

Try to commit.

Parameters
[in]tableTable definition before the ALTER
[in,out]altered_tableTable definition after the ALTER
[in]old_partthe stored old partition or nullptr if no corresponding one exists
[in,out]new_partthe stored new partition or nullptr if no corresponding one exists
Returns
0 or error number

Reimplemented from alter_part.

Member Data Documentation

◆ m_conflict

const bool alter_part_drop::m_conflict
private

True if there is already a partition table with the same name.


The documentation for this class was generated from the following file: