ha_innopart Class Reference

The class defining a partitioning aware handle to an InnoDB table. More...

#include <ha_innopart.h>

Inheritance diagram for ha_innopart:

Classes
struct	saved_prebuilt_t

Public Types
using	Reader = Parallel_reader_adapter
Public Types inherited from ha_innobase
using	Reader = Parallel_reader_adapter
Public Types inherited from handler
enum	enum_range_scan_direction { RANGE_SCAN_ASC , RANGE_SCAN_DESC }
enum	{ NONE = 0 , INDEX , RND , SAMPLING }
typedef ulonglong	Table_flags
using	Blob_context = void *
using	Load_init_cbk = std::function< bool(void *cookie, ulong ncols, ulong row_len, const ulong *col_offsets, const ulong *null_byte_offsets, const ulong *null_bitmasks)>
	This callback is called by each parallel load thread at the beginning of the parallel load for the adapter scan. More...
using	Load_cbk = std::function< bool(void *cookie, uint nrows, void *rowdata, uint64_t partition_id)>
	This callback is called by each parallel load thread when processing of rows is required for the adapter scan. More...
using	Load_end_cbk = std::function< void(void *cookie)>
	This callback is called by each parallel load thread when processing of rows has ended for the adapter scan. More...
typedef void(*	my_gcolumn_template_callback_t) (const TABLE *, void *)
	Callback function that will be called by my_prepare_gcolumn_template once the table has been opened. More...

Public Member Functions
	ha_innopart (handlerton *hton, TABLE_SHARE *table_arg)
	Construct ha_innopart handler. More...
	~ha_innopart () override=default
handler *	clone (const char *name, MEM_ROOT *mem_root) override
	Clone this handler, used when needing more than one cursor to the same table. More...
enum_alter_inplace_result	check_if_supported_inplace_alter (TABLE *altered_table, Alter_inplace_info *ha_alter_info) override
	Check if InnoDB supports a particular alter table in-place. More...
bool	prepare_inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const dd::Table *old_table_def, dd::Table *new_table_def) override
	Prepare in-place ALTER for table. More...
bool	inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const dd::Table *old_table_def, dd::Table *new_table_def) override
	Alter the table structure in-place. More...
bool	commit_inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, bool commit, const dd::Table *old_table_def, dd::Table *new_table_def) override
	Commit or rollback. More...
bool	prepare_inplace_alter_partition (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const dd::Table *old_dd_tab, dd::Table *new_dd_tab)
	Allows InnoDB to update internal structures with concurrent writes blocked (given that check_if_supported_inplace_alter() did not return HA_ALTER_INPLACE_NO_LOCK). More...
bool	inplace_alter_partition (Alter_inplace_info *ha_alter_info)
	Alter the table structure in-place with operations specified using HA_ALTER_FLAGS and Alter_inplace_information. More...
bool	commit_inplace_alter_partition (TABLE *altered_table, Alter_inplace_info *ha_alter_info, bool commit, const dd::Table *old_dd_tab, dd::Table *new_dd_tab)
	Prepare to commit or roll back ALTER TABLE...ALGORITHM=INPLACE. More...
int	optimize (THD *thd, HA_CHECK_OPT *check_opt) override
	Optimize table. More...
int	set_dd_discard_attribute (dd::Table *table_def, bool discard)
	Set DD discard attribute for tablespace. More...
int	discard_or_import_tablespace (bool discard, dd::Table *table_def) override
	Discards or imports an InnoDB tablespace. More...
int	extra (enum ha_extra_function operation) override
	Extra hints from MySQL. More...
void	print_error (int error, myf errflag) override
	Print error information. More...
bool	is_ignorable_error (int error) override
	Can error be ignored. More...
int	start_stmt (THD *thd, thr_lock_type lock_type) override
	Start statement. More...
ha_rows	records_in_range (uint inx, key_range *min_key, key_range *max_key) override
	Estimates the number of index records in a range. More...
ha_rows	estimate_rows_upper_bound () override
	Gives an UPPER BOUND to the number of rows in a table. More...
uint	alter_table_flags (uint flags)
void	update_create_info (HA_CREATE_INFO *create_info) override
	Update create_info. More...
int	create (const char *name, TABLE *form, HA_CREATE_INFO *create_info, dd::Table *table_def) override
	Creates a new table to an InnoDB database. More...
int	delete_table (const char *name, const dd::Table *dd_table) override
	Drop a table. More...
int	rename_table (const char *from, const char *to, const dd::Table *from_table, dd::Table *to_table) override
	Rename a table. More...
int	check (THD *thd, HA_CHECK_OPT *check_opt) override
	Checks a partitioned table. More...
int	repair (THD *thd, HA_CHECK_OPT *repair_opt) override
	Repair a partitioned table. More...
void	get_auto_increment (ulonglong offset, ulonglong increment, ulonglong nb_desired_values, ulonglong *first_value, ulonglong *nb_reserved_values) override
	Get the current auto_increment value. More...
enum row_type	get_partition_row_type (const dd::Table *partition_table, uint part_id) override
	Get partition row type from SE. More...
int	cmp_ref (const uchar *ref1, const uchar *ref2) const override
	Compares two 'refs'. More...
int	read_range_first (const key_range *start_key, const key_range *end_key, bool eq_range_arg, bool sorted) override
	Read first row between two ranges. More...
void	position (const uchar *record) override
	Store a reference to the current row to 'ref' field of the handle. More...
bool	check_if_incompatible_data (HA_CREATE_INFO *info, uint table_changes) override
	Part of old, deprecated in-place ALTER API. More...
int	delete_all_rows () override
	Delete all rows from the table. More...
int	disable_indexes (uint mode) override
	Disable indexes. More...
int	enable_indexes (uint mode) override
	Enable indexes. More...
int	ft_init () override
	Initialize FT index scan. More...
FT_INFO *	ft_init_ext (uint flags, uint inx, String *key) override
	Initialize FT index scan. More...
FT_INFO *	ft_init_ext_with_hints (uint inx, String *key, Ft_hints *hints) override
	Initialize FT index scan. More...
int	ft_read (uchar *buf) override
	Fetch next result from the FT result set. More...
bool	get_foreign_dup_key (char *child_table_name, uint child_table_name_len, char *child_key_name, uint child_key_name_len) override
	Retrieves the names of the table and the key for which there was a duplicate entry in the case of HA_ERR_FOREIGN_DUPLICATE_KEY. More...
int	read_range_next () override
	Read next row between two endpoints. More...
uint32_t	calculate_key_hash_value (Field **field_array) override
Table_flags	table_flags () const override
	Get the table flags to use for the statement. More...
void	release_auto_increment () override
	Do cleanup for auto increment calculation. More...
int	parallel_scan_init (void *&scan_ctx, size_t *num_threads, bool use_reserved_threads, size_t max_desired_threads) override
	Get number of threads that would be spawned for parallel read. More...
int	parallel_scan (void *scan_ctx, void **thread_ctxs, Reader::Init_fn init_fn, Reader::Load_fn load_fn, Reader::End_fn end_fn) override
	Start parallel read of data. More...
void	parallel_scan_end (void *parallel_scan_ctx) override
	Run the parallel read of data. More...
void	get_dynamic_partition_info (ha_statistics *stat_info, ha_checksum *check_sum, uint part_id) override
	Implementing Partition_handler interface. More...
uint	alter_flags (uint flags) const override
	Alter flags. More...
Partition_handler *	get_partition_handler () override
void	set_part_info (partition_info *part_info, bool early) override
	Set the partition info object to be used by the handler. More...
void	initialize_partitioning (partition_info *part_info, bool early)
handler *	get_handler () override
	Return the table handler. More...
Public Member Functions inherited from ha_innobase
	ha_innobase (handlerton *hton, TABLE_SHARE *table_arg)
	Construct ha_innobase handler. More...
	~ha_innobase () override=default
row_type	get_real_row_type (const HA_CREATE_INFO *create_info) const override
	Get real row type for the table created based on one specified by user, CREATE TABLE options and SE capabilities. More...
const char *	table_type () const override
	Returns the table type (storage engine name). More...
enum ha_key_alg	get_default_index_algorithm () const override
	Get default key algorithm for SE. More...
bool	is_index_algorithm_supported (enum ha_key_alg key_alg) const override
	Check if SE supports specific key algorithm. More...
ulong	index_flags (uint idx, uint part, bool all_parts) const override
	Returns the operations supported for indexes. More...
uint	max_supported_keys () const override
	Returns the maximum number of keys. More...
uint	max_supported_key_length () const override
	Returns the maximum key length. More...
uint	max_supported_key_part_length (HA_CREATE_INFO *create_info) const override
double	read_time (uint index, uint ranges, ha_rows rows) override
	Calculate the time it takes to read a set of ranges through an index This enables us to optimise reads for clustered indexes. More...
longlong	get_memory_buffer_size () const override
	Return the size of the InnoDB memory buffer. More...
int	index_read (uchar *buf, const uchar *key, uint key_len, ha_rkey_function find_flag) override
	Positions an index cursor to the index specified in the handle. More...
int	index_read_last (uchar *buf, const uchar *key, uint key_len) override
	The following functions works like index_read, but it find the last row with the current key value or prefix. More...
void	ft_end ()
int	info (uint) override
	Returns statistics information of the table to the MySQL interpreter, in various fields of the handle object. More...
int	analyze (THD *thd, HA_CHECK_OPT *check_opt) override
	Updates index cardinalities of the table, based on random dives into each index tree. More...
void	position (uchar *record)
bool	get_se_private_data (dd::Table *dd_table, bool reset) override
	Get storage-engine private data for a data dictionary table. More...
int	get_extra_columns_and_keys (const HA_CREATE_INFO *, const List< Create_field > *, const KEY *, uint, dd::Table *dd_table) override
	Add hidden columns and indexes to an InnoDB table definition. More...
bool	upgrade_table (THD *thd, const char *db_name, const char *table_name, dd::Table *dd_table) override
	Set Engine specific data to dd::Table object for upgrade. More...
uint	lock_count (void) const override
	Returns number of THR_LOCK locks used for one instance of InnoDB table. More...
void	init_table_handle_for_HANDLER () override
	Call this when you have opened a new table handle in HANDLER, before you call index_read_map() etc. More...
bool	get_error_message (int error, String *buf) override
	See comment in handler.cc. More...
bool	primary_key_is_clustered () const override
	Determines if the primary key is clustered index. More...
bool	bulk_load_check (THD *thd) const override
	Check if the table is ready for bulk load. More...
size_t	bulk_load_available_memory (THD *thd) const override
	Get the total memory available for bulk load in innodb buffer pool. More...
void *	bulk_load_begin (THD *thd, size_t data_size, size_t memory, size_t num_threads) override
	Begin parallel bulk data load to the table. More...
int	bulk_load_execute (THD *thd, void *load_ctx, size_t thread_idx, const Rows_mysql &rows, Bulk_load::Stat_callbacks &wait_cbk) override
	Execute bulk load operation. More...
int	open_blob (THD *thd, void *load_ctx, size_t thread_idx, Blob_context &blob_ctx, unsigned char *blobref) override
	Open a blob for write operation. More...
int	write_blob (THD *thd, void *load_ctx, size_t thread_idx, Blob_context blob_ctx, unsigned char *blobref, const unsigned char *data, size_t data_len) override
	Write to a blob. More...
int	close_blob (THD *thd, void *load_ctx, size_t thread_idx, Blob_context blob_ctx, byte *blobref) override
	Close the blob. More...
int	bulk_load_end (THD *thd, void *load_ctx, bool is_error) override
	End bulk load operation. More...
Public Member Functions inherited from handler
void	unbind_psi ()
void	rebind_psi ()
void	start_psi_batch_mode ()
	Put the handler in 'batch' mode when collecting table io instrumented events. More...
void	end_psi_batch_mode ()
	End a batch started with start_psi_batch_mode. More...
bool	end_psi_batch_mode_if_started ()
	If a PSI batch was started, turn if off. More...
	handler (handlerton *ht_arg, TABLE_SHARE *share_arg)
virtual	~handler (void)
virtual std::string	explain_extra () const
	Return extra handler specific text for EXPLAIN. More...
void	init ()
	This is called after create to allow us to set up cached variables. More...
void	ha_set_record_buffer (Record_buffer *buffer)
	Set a record buffer that the storage engine can use for multi-row reads. More...
Record_buffer *	ha_get_record_buffer () const
	Get the record buffer that was set with ha_set_record_buffer(). More...
bool	ha_is_record_buffer_wanted (ha_rows *const max_rows) const
	Does this handler want to get a Record_buffer for multi-row reads via the ha_set_record_buffer() function? And if so, what is the maximum number of records to allocate space for in the buffer? More...
int	ha_open (TABLE *table, const char *name, int mode, int test_if_locked, const dd::Table *table_def)
int	ha_close (void)
	Close handler. More...
int	ha_index_init (uint idx, bool sorted)
	Initialize use of index. More...
int	ha_index_end ()
	End use of index. More...
int	ha_rnd_init (bool scan)
	Initialize table for random read or scan. More...
int	ha_rnd_end ()
	End use of random access. More...
int	ha_rnd_next (uchar *buf)
	Read next row via random scan. More...
int	ha_rnd_pos (uchar *buf, uchar *pos)
	Read row via random scan from position. More...
int	ha_index_read_map (uchar *buf, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag)
	Read [part of] row via [part of] index. More...
int	ha_index_read_last_map (uchar *buf, const uchar *key, key_part_map keypart_map)
int	ha_index_read_idx_map (uchar *buf, uint index, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag)
	Initializes an index and read it. More...
int	ha_index_next (uchar *buf)
	Reads the next row via index. More...
int	ha_index_prev (uchar *buf)
	Reads the previous row via index. More...
int	ha_index_first (uchar *buf)
	Reads the first row via index. More...
int	ha_index_last (uchar *buf)
	Reads the last row via index. More...
int	ha_index_next_same (uchar *buf, const uchar *key, uint keylen)
	Reads the next same row via index. More...
int	ha_reset ()
	Check handler usage and reset state of file to after 'open'. More...
int	ha_index_or_rnd_end ()
Table_flags	ha_table_flags () const
	The cached_table_flags is set at ha_open and ha_external_lock. More...
int	ha_external_lock (THD *thd, int lock_type)
	These functions represent the public interface to users of the handler class, hence they are not virtual. More...
int	ha_write_row (uchar *buf)
int	ha_update_row (const uchar *old_data, uchar *new_data)
	Update the current row. More...
int	ha_delete_row (const uchar *buf)
void	ha_release_auto_increment ()
int	ha_check_for_upgrade (HA_CHECK_OPT *check_opt)
int	ha_check (THD *thd, HA_CHECK_OPT *check_opt)
	to be actually called to get 'check()' functionality More...
int	ha_repair (THD *thd, HA_CHECK_OPT *check_opt)
	Repair table: public interface. More...
void	ha_start_bulk_insert (ha_rows rows)
	Start bulk insert. More...
int	ha_end_bulk_insert ()
	End bulk insert. More...
int	ha_bulk_update_row (const uchar *old_data, uchar *new_data, uint *dup_key_found)
	Bulk update row: public interface. More...
int	ha_delete_all_rows ()
	Delete all rows: public interface. More...
int	ha_truncate (dd::Table *table_def)
	Truncate table: public interface. More...
int	ha_optimize (THD *thd, HA_CHECK_OPT *check_opt)
	Optimize table: public interface. More...
int	ha_analyze (THD *thd, HA_CHECK_OPT *check_opt)
	Analyze table: public interface. More...
bool	ha_check_and_repair (THD *thd)
	Check and repair table: public interface. More...
int	ha_disable_indexes (uint mode)
	Disable indexes: public interface. More...
int	ha_enable_indexes (uint mode)
	Enable indexes: public interface. More...
int	ha_discard_or_import_tablespace (bool discard, dd::Table *table_def)
	Discard or import tablespace: public interface. More...
int	ha_rename_table (const char *from, const char *to, const dd::Table *from_table_def, dd::Table *to_table_def)
	Rename table: public interface. More...
int	ha_delete_table (const char *name, const dd::Table *table_def)
	Delete table: public interface. More...
void	ha_drop_table (const char *name)
	Drop table in the engine: public interface. More...
int	ha_create (const char *name, TABLE *form, HA_CREATE_INFO *info, dd::Table *table_def)
	Create a table in the engine: public interface. More...
int	ha_load_table (const TABLE &table, bool *skip_metadata_update)
	Loads a table into its defined secondary storage engine: public interface. More...
int	ha_unload_table (const char *db_name, const char *table_name, bool error_if_not_loaded)
	Unloads a table from its defined secondary storage engine: public interface. More...
bool	ha_get_se_private_data (dd::Table *dd_table, bool reset)
	Submit a dd::Table object representing a core DD table having hardcoded data to be filled in by the DDSE. More...
void	adjust_next_insert_id_after_explicit_value (ulonglong nr)
int	update_auto_increment ()
uint	get_dup_key (int error)
virtual void	change_table_ptr (TABLE *table_arg, TABLE_SHARE *share)
	Change the internal TABLE_SHARE pointer. More...
const TABLE_SHARE *	get_table_share () const
const TABLE *	get_table () const
virtual double	index_only_read_time (uint keynr, double records)
	Calculate cost of 'index only' scan for given index and number of records. More...
virtual Cost_estimate	table_scan_cost ()
	Cost estimate for doing a complete table scan. More...
virtual Cost_estimate	index_scan_cost (uint index, double ranges, double rows)
	Cost estimate for reading a number of ranges from an index. More...
virtual Cost_estimate	read_cost (uint index, double ranges, double rows)
	Cost estimate for reading a set of ranges from the table using an index to access it. More...
virtual double	page_read_cost (uint index, double reads)
	Cost estimate for doing a number of non-sequentially accesses against the storage engine. More...
virtual double	worst_seek_times (double reads)
	Provide an upper cost-limit of doing a specified number of seek-and-read key lookups. More...
double	table_in_memory_estimate () const
	Return an estimate of how much of the table that is currently stored in main memory. More...
double	index_in_memory_estimate (uint keyno) const
	Return an estimate of how much of the index that is currently stored in main memory. More...
int	ha_sample_init (void *&scan_ctx, double sampling_percentage, int sampling_seed, enum_sampling_method sampling_method, const bool tablesample)
	Initialize sampling. More...
int	ha_sample_next (void *scan_ctx, uchar *buf)
	Get the next record for sampling. More...
int	ha_sample_end (void *scan_ctx)
	End sampling. More...
int	ha_multi_range_read_next (char **range_info)
int	ha_read_range_first (const key_range *start_key, const key_range *end_key, bool eq_range, bool sorted)
int	ha_read_range_next ()
bool	has_transactions ()
virtual uint	extra_rec_buf_length () const
virtual bool	is_fatal_error (int error)
	Determine whether an error is fatal or not. More...
int	ha_records (ha_rows *num_rows)
	Wrapper function to call records() in storage engine. More...
int	ha_records (ha_rows *num_rows, uint index)
	Wrapper function to call records_from_index() in storage engine. More...
virtual void	column_bitmaps_signal ()
	Signal that the table->read_set and table->write_set table maps changed The handler is allowed to set additional bits in the above map in this call. More...
uint	get_index (void) const
virtual bool	start_bulk_update ()
virtual bool	start_bulk_delete ()
virtual int	exec_bulk_update (uint *dup_key_found)
	After this call all outstanding updates must be performed. More...
virtual void	end_bulk_update ()
	Perform any needed clean-up, no outstanding updates are there at the moment. More...
virtual int	end_bulk_delete ()
	Execute all outstanding deletes and close down the bulk delete. More...
void	set_end_range (const key_range *range, enum_range_scan_direction direction)
	Set the end position for a range scan. More...
int	compare_key (key_range *range)
	Compare if found key (in row) is over max-value. More...
int	compare_key_icp (const key_range *range) const
int	compare_key_in_buffer (const uchar *buf) const
	Check if the key in the given buffer (which is not necessarily TABLE::record[0]) is within range. More...
int	ha_ft_read (uchar *buf)
int	ha_read_first_row (uchar *buf, uint primary_key)
	Read first row (only) from a table. More...
int	ha_extra (enum ha_extra_function operation)
	Request storage engine to do an extra operation: enable,disable or run some functionality. More...
virtual int	extra_opt (enum ha_extra_function operation, ulong cache_size)
virtual const handlerton *	hton_supporting_engine_pushdown ()
	Get the handlerton of the storage engine if the SE is capable of pushing down some of the AccessPath functionality. More...
virtual bool	start_read_removal (void)
	Start read (before write) removal on the current table. More...
virtual ha_rows	end_read_removal (void)
	End read (before write) removal and return the number of rows really written. More...
void	set_next_insert_id (ulonglong id)
void	restore_auto_increment (ulonglong prev_insert_id)
virtual int	assign_to_keycache (THD *, HA_CHECK_OPT *)
virtual int	preload_keys (THD *, HA_CHECK_OPT *)
virtual int	indexes_are_disabled (void)
	Check if indexes are disabled. More...
virtual void	append_create_info (String *packet)
uint	max_record_length () const
uint	max_keys () const
uint	max_key_parts () const
uint	max_key_length () const
uint	max_key_part_length (HA_CREATE_INFO *create_info) const
virtual uint	max_supported_record_length () const
virtual uint	max_supported_key_parts () const
virtual uint	min_record_length (uint options) const
virtual bool	low_byte_first () const
virtual ha_checksum	checksum () const
virtual bool	is_crashed () const
	Check if the table is crashed. More...
virtual bool	auto_repair () const
	Check if the table can be automatically repaired. More...
virtual const Item *	cond_push (const Item *cond)
	Push condition down to the table handler. More...
virtual void	cancel_pushed_idx_cond ()
	Reset information about pushed index conditions. More...
virtual uint	number_of_pushed_joins () const
	Reports number of tables included in pushed join which this handler instance is part of. More...
virtual const TABLE *	member_of_pushed_join () const
	If this handler instance is part of a pushed join sequence returned TABLE instance being root of the pushed query? More...
virtual const TABLE *	parent_of_pushed_join () const
	If this handler instance is a child in a pushed join sequence returned TABLE instance being my parent? More...
virtual table_map	tables_in_pushed_join () const
int	ha_index_read_pushed (uchar *buf, const uchar *key, key_part_map keypart_map)
int	ha_index_next_pushed (uchar *buf)
bool	ha_prepare_inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const dd::Table *old_table_def, dd::Table *new_table_def)
	Public functions wrapping the actual handler call. More...
bool	ha_inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const dd::Table *old_table_def, dd::Table *new_table_def)
	Public function wrapping the actual handler call. More...
bool	ha_commit_inplace_alter_table (TABLE *altered_table, Alter_inplace_info *ha_alter_info, bool commit, const dd::Table *old_table_def, dd::Table *new_table_def)
	Public function wrapping the actual handler call. More...
void	ha_notify_table_changed (Alter_inplace_info *ha_alter_info)
	Public function wrapping the actual handler call. More...
virtual void	use_hidden_primary_key ()
	use_hidden_primary_key() is called in case of an update/delete when (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined but we don't have a primary key More...
virtual int	bulk_update_row (const uchar *old_data, uchar *new_data, uint *dup_key_found)
	This method is similar to update_row, however the handler doesn't need to execute the updates at this point in time. More...
virtual int	truncate (dd::Table *table_def)
	Quickly remove all rows from a table. More...
virtual bool	check_and_repair (THD *thd)
	Check and repair the table if necessary. More...
virtual void	drop_table (const char *name)
virtual bool	set_ha_share_ref (Handler_share **arg_ha_share)
void	set_ha_table (TABLE *table_arg)
int	get_lock_type () const
bool	ha_upgrade_table (THD *thd, const char *dbname, const char *table_name, dd::Table *dd_table, TABLE *table_arg)
	Set se_private_id and se_private_data during upgrade. More...
void	ha_set_primary_handler (handler *primary_handler)
	Store a pointer to the handler of the primary table that corresponds to the secondary table in this handler. More...
handler *	ha_get_primary_handler () const
	Get a pointer to a handler for the table in the primary storage engine, if this handler is for a table in a secondary storage engine. More...
void	ha_mv_key_capacity (uint *num_keys, size_t *keys_length) const
	Return max limits for a single set of multi-valued keys. More...
virtual void	set_external_table_offload_error (const char *)
	Propagates the secondary storage engine offload failure reason for a query to the external engine when the offloaded query fails in the secondary storage engine. More...
virtual void	external_table_offload_error () const
	Identifies and throws the propagated external engine query offload or exec failure reason given by the external engine handler. More...
Public Member Functions inherited from Partition_helper
	Partition_helper (handler *main_handler)
virtual	~Partition_helper ()
virtual void	set_part_info_low (partition_info *part_info, bool early)
	Set partition info. More...
bool	init_partitioning (MEM_ROOT *mem_root)
	Initialize variables used before the table is opened. More...
void	ph_release_auto_increment ()
	Release unused auto increment values. More...
int	ph_write_row (uchar *buf)
	INSERT/UPDATE/DELETE functions. More...
int	ph_update_row (const uchar *old_data, uchar *new_data)
	Update an existing row in the partitioned table. More...
int	ph_delete_row (const uchar *buf)
	Delete an existing row in the partitioned table. More...
int	ph_rnd_init (bool scan)
	MODULE full table scan. More...
int	ph_rnd_end ()
	End of a table scan. More...
int	ph_rnd_next (uchar *buf)
	Read next row during full table scan (scan in random row order). More...
void	ph_position (const uchar *record)
	Save position of current row. More...
int	ph_index_init_setup (uint key_nr, bool sorted)
	MODULE index scan. More...
int	ph_index_first (uchar *buf)
	Start an index scan from leftmost record and return first record. More...
int	ph_index_last (uchar *buf)
	Start an index scan from rightmost record and return first record. More...
int	ph_index_next (uchar *buf)
	Read next record in a forward index scan. More...
int	ph_index_next_same (uchar *buf, uint keylen)
	Read next same record. More...
int	ph_index_prev (uchar *buf)
	Read next record when performing index scan backwards. More...
int	ph_index_read_map (uchar *buf, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag)
	Read one record in an index scan and start an index scan. More...
int	ph_index_read_last_map (uchar *buf, const uchar *key, key_part_map keypart_map)
	Read last using key. More...
int	ph_index_read_idx_map (uchar *buf, uint index, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag)
	Read index by key and keymap. More...
int	ph_read_range_first (const key_range *start_key, const key_range *end_key, bool eq_range_arg, bool sorted)
	Start a read of one range with start and end key. More...
int	ph_read_range_next ()
	Read next record in read of a range with start and end key. More...
virtual void	get_dynamic_partition_info_low (ha_statistics *stat_info, ha_checksum *check_sum, uint part_id)
	Functions matching Partition_handler API. More...
void	prepare_change_partitions ()
	Prepare for reorganizing partitions by setting up partition_info::read_partitions according to the partition_info mark-up. More...
Public Member Functions inherited from Partition_handler
	Partition_handler ()=default
virtual	~Partition_handler ()=default
virtual int	get_default_num_partitions (HA_CREATE_INFO *info)
	Get default number of partitions. More...
virtual void	set_auto_partitions (partition_info *part_info)
	Setup auto partitioning. More...
virtual bool	get_num_parts (const char *name, uint *num_parts)
	Get number of partitions for table in SE. More...
int	truncate_partition (dd::Table *table_def)
	Truncate partitions. More...
int	exchange_partition (uint part_id, dd::Table *part_table_def, dd::Table *swap_table_def)
	Exchange partition. More...

Static Public Member Functions
static int	key_and_rowid_cmp (KEY **key_info, uchar *a, uchar *b)
	Compare key and rowid. More...
Static Public Member Functions inherited from handler
static bool	my_prepare_gcolumn_template (THD *thd, const char *db_name, const char *table_name, my_gcolumn_template_callback_t myc, void *ib_table)
	Callback to allow InnoDB to prepare a template for generated column processing. More...
static bool	my_eval_gcolumn_expr_with_open (THD *thd, const char *db_name, const char *table_name, const MY_BITMAP *const fields, uchar *record, const char **mv_data_ptr, ulong *mv_length)
	Callback for generated columns processing. More...
static bool	my_eval_gcolumn_expr (THD *thd, TABLE *table, const MY_BITMAP *const fields, uchar *record, const char **mv_data_ptr, ulong *mv_length)
	Callback for computing generated column values. More...
Static Public Member Functions inherited from Partition_helper
static uint32	ph_calculate_key_hash_value (Field **field_array)
	Calculate key hash value from an null terminated array of fields. More...

Protected Member Functions
int	info_low (uint flag, bool is_analyze) override
	Updates and return statistics. More...
bool	can_reuse_mysql_template () const override
	Can reuse the template. More...
int	rnd_next (uchar *record) override
	Protected handler:: functions specific for native InnoDB partitioning. More...
int	rnd_pos (uchar *record, uchar *pos) override
	Get a row from a position. More...
int	records (ha_rows *num_rows) override
	Total number of rows in all used partitions. More...
int	index_next (uchar *record) override
	Reads the next row from a cursor, which must have previously been positioned using index_read. More...
int	index_next_same (uchar *record, const uchar *, uint keylen) override
	Reads the next row matching to the key value given as the parameter. More...
int	index_prev (uchar *record) override
	Reads the previous row from a cursor, which must have previously been positioned using index_read. More...
int	index_first (uchar *record) override
	Positions a cursor on the first record in an index and reads the corresponding row to buf. More...
int	index_last (uchar *record) override
	Positions a cursor on the last record in an index and reads the corresponding row to buf. More...
int	index_read_last_map (uchar *record, const uchar *key, key_part_map keypart_map) override
	The following functions works like index_read, but it find the last row with the current key value or prefix. More...
int	index_read_map (uchar *buf, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag) override
	Positions an index cursor to the index specified in the handle ('active_index'). More...
int	index_read_idx_map (uchar *buf, uint index, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag) override
	Positions an index cursor to the index specified in argument. More...
Protected Member Functions inherited from ha_innobase
int	delete_table (const char *name, const dd::Table *table_def, enum enum_sql_command sqlcom)
	Drop a table. More...
int	srv_concurrency_enter ()
	Enter InnoDB engine after checking max allowed threads. More...
void	srv_concurrency_exit ()
	Leave Innodb, if no more tickets are left. More...
void	update_thd (THD *thd)
	Updates the user_thd field in a handle and also allocates a new InnoDB transaction handle if needed, and updates the transaction fields in the m_prebuilt struct. More...
int	general_fetch (uchar *buf, uint direction, uint match_mode)
	Reads the next or previous row from a cursor, which must have previously been positioned using index_read. More...
void	build_template (bool whole_row)
	Builds a 'template' to the m_prebuilt struct. More...
int	end_stmt ()
	MySQL calls this method at the end of each statement. More...
template<typename Table >
bool	prepare_inplace_alter_table_impl (TABLE *altered_table, Alter_inplace_info *ha_alter_info, const Table *old_dd_tab, Table *new_dd_tab)
	Implementation of prepare_inplace_alter_table() More...
template<typename Table >
bool	inplace_alter_table_impl (TABLE *altered_table, Alter_inplace_info *ha_alter_info)
	Implementation of inplace_alter_table() More...
template<typename Table >
bool	commit_inplace_alter_table_impl (TABLE *altered_table, Alter_inplace_info *ha_alter_info, bool commit, Table *new_dd_tab)
	Implementation of commit_inplace_alter_table() More...
void	mv_key_capacity (uint *num_keys, size_t *keys_length) const override
	Return max limits for a single set of multi-valued keys. More...
Protected Member Functions inherited from handler
virtual int	records_from_index (ha_rows *num_rows, uint index)
	Number of rows in table counted using the secondary index chosen by optimizer. More...
virtual int	index_read_pushed (uchar *, const uchar *, key_part_map)
virtual int	index_next_pushed (uchar *)
virtual void	notify_table_changed (Alter_inplace_info *ha_alter_info)
	Notify the storage engine that the table definition has been updated. More...
void	ha_statistic_increment (ulonglong System_status_var::*offset) const
THD *	ha_thd () const
PSI_table_share *	ha_table_share_psi (const TABLE_SHARE *share) const
	Acquire the instrumented table information from a table share. More...
Handler_share *	get_ha_share_ptr ()
	Get an initialized ha_share. More...
void	set_ha_share_ptr (Handler_share *arg_ha_share)
	Set ha_share to be used by all instances of the same table/partition. More...
void	lock_shared_ha_data ()
	Take a lock for protecting shared handler data. More...
void	unlock_shared_ha_data ()
	Release lock for protecting ha_share. More...
Protected Member Functions inherited from Partition_helper
bool	open_partitioning (Partition_share *part_share)
	Set m_part_share, Allocate internal bitmaps etc. More...
void	close_partitioning ()
	Close partitioning for a table. More...
void	lock_auto_increment ()
	Lock auto increment value if needed. More...
void	unlock_auto_increment ()
	unlock auto increment. More...
void	get_auto_increment_first_field (ulonglong increment, ulonglong nb_desired_values, ulonglong *first_value, ulonglong *nb_reserved_values)
	Get a range of auto increment values. More...
int	init_record_priority_queue ()
	Initialize the record priority queue used for sorted index scans. More...
void	destroy_record_priority_queue ()
	Destroy the record priority queue used for sorted index scans. More...
bool	print_partition_error (int error)
	Print partitioning specific error. More...
bool	print_admin_msg (THD *thd, uint len, const char *msg_type, const char *db_name, const char *table_name, const char *op_name, const char *fmt,...)
	Print a message row formatted for ANALYZE/CHECK/OPTIMIZE/REPAIR TABLE. More...
int	check_misplaced_rows (uint read_part_id, bool repair)
	Check/fix misplaced rows. More...
bool	set_altered_partitions ()
	Set used partitions bitmap from Alter_info. More...
virtual int	copy_partitions (ulonglong *const deleted)
	Copy partitions as part of ALTER TABLE of partitions. More...

Private Member Functions
void	clear_ins_upd_nodes ()
	Clear used ins_nodes and upd_nodes. More...
void	clear_blob_heaps ()
	Clear the blob heaps for all partitions. More...
int	reset () override
	Reset state of file to after 'open'. More...
int	change_active_index (uint part_id, uint keynr)
	Changes the active index of a handle. More...
int	next_partition_index ()
	Move to next partition and set its index. More...
int	innobase_initialize_autoinc ()
	Internally called for initializing auto increment value. More...
dict_index_t *	innobase_get_index (uint keynr) override
	Get the index for the current partition. More...
dict_index_t *	innopart_get_index (uint part_id, uint keynr)
	Get the index for a handle. More...
void	set_partition (uint part_id)
	Change active partition. More...
void	update_partition (uint part_id)
	Update active partition. More...
int	truncate_impl (const char *name, TABLE *form, dd::Table *table_def)
	TRUNCATE an InnoDB partitioned table. More...
int	initialize_auto_increment (bool no_lock) override
	Set the autoinc column max value. More...
void	save_auto_increment (ulonglong nr) override
	Save currently highest auto increment value. More...
int	init_record_priority_queue_for_parts (uint used_parts) override
	Setup the ordered record buffer and the priority queue. More...
void	destroy_record_priority_queue_for_parts () override
	Destroy the ordered record buffer and the priority queue. More...
bool	prepare_for_copy_partitions (Alter_inplace_info *ha_alter_info)
	Create the Altered_partitoins object. More...
int	write_row_in_new_part (uint new_part) override
	write row to new partition. More...
int	write_row_in_part (uint part_id, uchar *record) override
	Write a row in specific partition. More...
int	update_row_in_part (uint part_id, const uchar *old_row, uchar *new_row) override
	Update a row in partition. More...
int	delete_row_in_part (uint part_id, const uchar *record) override
	Deletes a row in partition. More...
int	index_first_in_part (uint part, uchar *record) override
	Return first record in index from a partition. More...
int	index_last_in_part (uint part, uchar *record) override
	Return last record in index from a partition. More...
int	index_prev_in_part (uint part, uchar *record) override
	Return previous record in index from a partition. More...
int	index_next_in_part (uint part, uchar *record) override
	Return next record in index from a partition. More...
int	index_next_same_in_part (uint part, uchar *record, const uchar *key, uint length) override
	Return next same record in index from a partition. More...
int	index_read_map_in_part (uint part, uchar *record, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag) override
	Start index scan and return first record from a partition. More...
int	index_read_last_map_in_part (uint part, uchar *record, const uchar *key, key_part_map keypart_map) override
	Return last matching record in index from a partition. More...
int	read_range_first_in_part (uint part, uchar *record, const key_range *start_key, const key_range *end_key, bool sorted) override
	Start index scan and return first record from a partition. More...
int	read_range_next_in_part (uint part, uchar *record) override
	Return next record in index range scan from a partition. More...
int	index_read_idx_map_in_part (uint part, uchar *record, uint index, const uchar *key, key_part_map keypart_map, enum ha_rkey_function find_flag) override
	Start index scan and return first record from a partition. More...
int	sample_init (void *&scan_ctx, double sampling_percentage, int sampling_seed, enum_sampling_method sampling_method, const bool tablesample) override
	Initialize sampling. More...
int	sample_next (void *scan_ctx, uchar *buf) override
	Get the next record for sampling. More...
int	sample_end (void *scan_ctx) override
	End sampling. More...
int	rnd_init_in_part (uint part_id, bool scan) override
	Initialize random read/scan of a specific partition. More...
int	rnd_next_in_part (uint part_id, uchar *buf) override
	Get next row during scan of a specific partition. More...
int	rnd_end_in_part (uint part_id, bool scan) override
	End random read/scan of a specific partition. More...
void	position_in_last_part (uchar *ref_arg, const uchar *record) override
	Return position for cursor in last used partition. More...
int	rnd_pos_by_record (uchar *record) override
	Read row using position using given record to find. More...
void	copy_cached_row (uchar *buf, const uchar *cached_row) override
	Copy a cached MySQL row. More...
int	open (const char *name, int mode, uint test_if_locked, const dd::Table *table_def) override
	Open an InnoDB table. More...
int	close () override
	Closes a handle to an InnoDB table. More...
double	scan_time () override
	Time estimate for full table scan. More...
bool	was_semi_consistent_read () override
	Was the last returned row semi consistent read. More...
void	try_semi_consistent_read (bool yes) override
	Try semi consistent read. More...
void	unlock_row () override
	Removes a lock on a row. More...
int	index_init (uint index, bool sorted) override
	Initializes a handle to use an index. More...
int	index_end () override
	End index cursor. More...
int	rnd_init (bool scan) override
	Initialize a table scan. More...
int	rnd_end () override
	Ends a table scan. More...
int	external_lock (THD *thd, int lock_type) override
	Lock/prepare to lock table. More...
THR_LOCK_DATA **	store_lock (THD *thd, THR_LOCK_DATA **to, thr_lock_type lock_type) override
	Function to store lock for all partitions in native partitioned table. More...
int	write_row (uchar *record) override
	Stores a row in an InnoDB database, to the table specified in this handle. More...
int	update_row (const uchar *old_record, uchar *new_record) override
	Updates a row given as a parameter to a new value. More...
int	delete_row (const uchar *record) override
	Deletes a row given as the parameter. More...
int	truncate_partition_low (dd::Table *dd_table) override
	Delete all rows in the requested partitions. More...
int	exchange_partition_low (uint part_id, dd::Table *part_table, dd::Table *swap_table) override
	Exchange partition. More...
void	update_part_elem (partition_element *part_elem, dict_table_t *ib_table, bool display_tablespace)
	Fill in data_dir_path and tablespace name from internal data dictionary. More...
THD *	get_thd () const override
	Access methods to protected areas in handler to avoid adding friend class Partition_helper in class handler. More...
TABLE *	get_table () const override
bool	get_eq_range () const override
void	set_eq_range (bool eq_range_arg) override
void	set_range_key_part (KEY_PART_INFO *key_part) override

Private Attributes
Ha_innopart_share *	m_part_share
	Pointer to Ha_innopart_share on the TABLE_SHARE. More...
ut::unique_ptr< saved_prebuilt_t[]>	m_parts
byte *	m_bitset
	byte array for sql_stat_start bitset More...
Sql_stat_start_parts	m_sql_stat_start_parts
	sql_stat_start per partition. More...
btr_pcur_t *	m_pcur_parts
	persistent cursors per partition. More...
btr_pcur_t *	m_clust_pcur_parts
	persistent cluster cursors per partition. More...
uint16_t *	m_pcur_map
	map from part_id to offset in above two arrays. More...
btr_pcur_t *	m_pcur
	Original m_prebuilt->pcur. More...
btr_pcur_t *	m_clust_pcur
	Original m_prebuilt->clust_pcur. More...
Altered_partitions *	m_new_partitions
	New partitions during ADD/REORG/... PARTITION. More...
bool	m_reuse_mysql_template
	Can reuse the template for the previous partition. More...

Additional Inherited Members
Public Attributes inherited from handler
handlerton *	ht
uchar *	ref
	Pointer to current row. More...
uchar *	dup_ref
	Pointer to duplicate row. More...
ha_statistics	stats
range_seq_t	mrr_iter
RANGE_SEQ_IF	mrr_funcs
HANDLER_BUFFER *	multi_range_buffer
uint	ranges_in_seq
bool	mrr_is_output_sorted
bool	mrr_have_range
KEY_MULTI_RANGE	mrr_cur_range
key_range *	end_range
	End value for a range scan. More...
bool	m_virt_gcol_in_end_range = false
	Flag which tells if end_range contains a virtual generated column. More...
uint	errkey
uint	key_used_on_scan
uint	active_index
uint	ref_length
	Length of ref (1-8 or the clustered key length) More...
FT_INFO *	ft_handler
enum handler:: { ... }	inited
bool	implicit_emptied
const Item *	pushed_cond
Item *	pushed_idx_cond
uint	pushed_idx_cond_keyno
ulonglong	next_insert_id
	next_insert_id is the next value which should be inserted into the auto_increment column: in a inserting-multi-row statement (like INSERT SELECT), for the first row where the autoinc value is not specified by the statement, get_auto_increment() called and asked to generate a value, next_insert_id is set to the next value, then for all other rows next_insert_id is used (and increased each time) without calling get_auto_increment(). More...
ulonglong	insert_id_for_cur_row
	insert id for the current row (autogenerated; if not autogenerated, it's 0). More...
Discrete_interval	auto_inc_interval_for_cur_row
	Interval returned by get_auto_increment() and being consumed by the inserter. More...
uint	auto_inc_intervals_count
	Number of reserved auto-increment intervals. More...
PSI_table *	m_psi
	Instrumented table associated with this handler. More...
std::mt19937 *	m_random_number_engine {nullptr}
double	m_sampling_percentage
Protected Types inherited from Partition_helper
enum	enum_using_ref { REF_NOT_USED = 0 , REF_STORED_IN_PQ , REF_USED_FOR_SORT }
Protected Attributes inherited from ha_innobase
DsMrr_impl	m_ds_mrr
	The multi range read session object. More...
row_prebuilt_t *	m_prebuilt
	Save CPU time with prebuilt/cached data structures. More...
THD *	m_user_thd
	Thread handle of the user currently using the handler; this is set in external_lock function. More...
INNOBASE_SHARE *	m_share
	information for MySQL table locking More...
uchar *	m_upd_buf
	buffer used in updates More...
ulint	m_upd_buf_size
	the size of upd_buf in bytes More...
Table_flags	m_int_table_flags
	Flags that specify the handler instance (table) capability. More...
bool	m_start_of_scan
	this is set to 1 when we are starting a table scan but have not yet fetched any row, else false More...
uint	m_last_match_mode {0}
ulint	m_stored_select_lock_type
	this field is used to remember the original select_lock_type that was decided in ha_innodb.cc,":: store_lock()", "::external_lock()", etc. More...
bool	m_mysql_has_locked
	If mysql has locked with external_lock() More...
Protected Attributes inherited from handler
TABLE_SHARE *	table_share
TABLE *	table
Table_flags	cached_table_flags {0}
ha_rows	estimation_rows_to_insert
KEY_PART_INFO *	range_key_part
bool	eq_range
bool	in_range_check_pushed_down
Protected Attributes inherited from Partition_helper
TABLE *	m_table
	Convenience pointer to table from m_handler (i.e. More...
partition_info *	m_part_info
	All internal partitioning data! More...
bool	m_pkey_is_clustered
	Is primary key clustered. More...
bool	m_is_sub_partitioned
	Cached value of m_part_info->is_sub_partitioned(). More...
uint	m_tot_parts
	Total number of partitions. More...
uint	m_last_part
const uchar *	m_err_rec
bool	m_auto_increment_safe_stmt_log_lock
bool	m_auto_increment_lock
part_id_range	m_part_spec
uint	m_scan_value
key_range	m_start_key
enum partition_index_scan_type	m_index_scan_type
uint	m_rec_length
bool	m_ordered
bool	m_ordered_scan_ongoing
bool	m_reverse_order
uchar *	m_ordered_rec_buffer
	Row and key buffer for ordered index scan. More...
Prio_queue *	m_queue
	Prio queue used by sorted read. More...
uint	m_top_entry
	Which partition is to deliver next result. More...
uint	m_rec_offset
	Offset in m_ordered_rec_buffer from part buffer to its record buffer. More...
KEY *	m_curr_key_info [3]
	Current index used for sorting. More...
enum_using_ref	m_ref_usage
	How handler::ref is used in the priority queue. More...
bool	m_key_not_found
	Set if previous index_* call returned HA_ERR_KEY_NOT_FOUND. More...
MY_BITMAP	m_key_not_found_partitions
	Partitions that returned HA_ERR_KEY_NOT_FOUND. More...

Detailed Description

The class defining a partitioning aware handle to an InnoDB table.

Based on ha_innobase and extended with

• Partition_helper for re-using common partitioning functionality
• Partition_handler for providing partitioning specific api calls. Generic partitioning functions are implemented in Partition_helper. Lower level storage functions are implemented in ha_innobase. Partition_handler is inherited for implementing the handler level interface for partitioning specific functions, like truncate_partition. InnoDB specific functions related to partitioning is implemented here.

Member Typedef Documentation

Reader

using ha_innopart::Reader = Parallel_reader_adapter

Constructor & Destructor Documentation

ha_innopart()

ha_innopart::ha_innopart	(	handlerton *	hton,
		TABLE_SHARE *	table_arg
	)

Construct ha_innopart handler.

Parameters

[in]	hton	Handlerton.
[in]	table_arg	MySQL Table.

~ha_innopart()

ha_innopart::~ha_innopart ( )

overridedefault

Member Function Documentation

alter_flags()

uint ha_innopart::alter_flags ( uint  flags ) const

inlineoverridevirtual

Alter flags.

Given a set of alter table flags, return which is supported.

Parameters

flags

Alter table operation flags.

Returns

Supported alter table flags.

Reimplemented from Partition_handler.

alter_table_flags()

uint ha_innopart::alter_table_flags

(

uint

flags

)

calculate_key_hash_value()

uint32_t ha_innopart::calculate_key_hash_value ( Field **  field_array )

inlineoverridevirtual

Reimplemented from handler.

can_reuse_mysql_template()

bool ha_innopart::can_reuse_mysql_template ( ) const

inlineoverrideprotectedvirtual

Can reuse the template.

Mainly used for partition.

Return values

true	Can reuse the mysql_template

Reimplemented from ha_innobase.

change_active_index()

int ha_innopart::change_active_index ( uint  part_id, uint  keynr  )

private

Changes the active index of a handle.

Parameters

[in]	part_id	Use this partition.
[in]	keynr	Use this index; MAX_KEY means always clustered index, even if it was internally generated by InnoDB.

Returns

0 or error number.

check()

int ha_innopart::check ( THD *  thd, HA_CHECK_OPT *  check_opt  )

overridevirtual

Checks a partitioned table.

Tries to check that an InnoDB table is not corrupted. If corruption is noticed, prints to stderr information about it. In case of corruption may also assert a failure and crash the server. Also checks for records in wrong partition.

Parameters

[in]	thd	MySQL THD object/thread handle.
[in]	check_opt	Check options.

Returns

HA_ADMIN_CORRUPT or HA_ADMIN_OK.

Reimplemented from ha_innobase.

check_if_incompatible_data()

bool ha_innopart::check_if_incompatible_data ( HA_CREATE_INFO *  create_info, uint  table_changes  )

inlineoverridevirtual

Part of old, deprecated in-place ALTER API.

Reimplemented from ha_innobase.

clear_blob_heaps()

void ha_innopart::clear_blob_heaps ( )

private

Clear the blob heaps for all partitions.

clear_ins_upd_nodes()

void ha_innopart::clear_ins_upd_nodes ( )

private

Clear used ins_nodes and upd_nodes.

clone()

handler * ha_innopart::clone ( const char *  name, MEM_ROOT *  mem_root  )

overridevirtual

Clone this handler, used when needing more than one cursor to the same table.

Parameters

[in]	name	Table name.
[in]	mem_root	mem_root to allocate from.

Return values

Pointer

to clone or NULL if error.

Reimplemented from ha_innobase.

cmp_ref()

int ha_innopart::cmp_ref ( const uchar *  ref1, const uchar *  ref2  ) const

overridevirtual

Compares two 'refs'.

A 'ref' is the (internal) primary key value of the row. If there is no explicitly declared non-null unique key or a primary key, then InnoDB internally uses the row id as the primary key. It will use the partition id as secondary compare.

Parameters

[in]	ref1	An (internal) primary key value in the MySQL key value format.
[in]	ref2	Reference to compare with (same type as ref1).

Returns

< 0 if ref1 < ref2, 0 if equal, else > 0.

Reimplemented from ha_innobase.

commit_inplace_alter_partition()

bool ha_innopart::commit_inplace_alter_partition	(	TABLE *	altered_table,
		Alter_inplace_info *	ha_alter_info,
		bool	commit,
		const dd::Table *	old_dd_tab,
		dd::Table *	new_dd_tab
	)

Prepare to commit or roll back ALTER TABLE...ALGORITHM=INPLACE.

This is for 'ALTER TABLE ... PARTITION' and a corresponding function to commit_inplace_alter_table().

Parameters

[in,out]	altered_table	TABLE object for new version of table.
[in,out]	ha_alter_info	ALGORITHM=INPLACE metadata
[in]	commit	true=Commit, false=Rollback.
[in]	old_dd_tab	old table
[in,out]	new_dd_tab	new table

Return values

true	on failure (my_error() will have been called)
false	on success

create()

int ha_innopart::create ( const char *  name, TABLE *  form, HA_CREATE_INFO *  create_info, dd::Table *  table_def  )

overridevirtual

Creates a new table to an InnoDB database.

Parameters

[in]	name	Table name (in filesystem charset).
[in]	form	MySQL Table containing information of partitions, columns and indexes etc.
[in]	create_info	Additional create information, like create statement string.
[in,out]	table_def	dd::Table object for table to be created. Can be adjusted by this call. Changes to the table definition will be persisted in the data-dictionary at statement commit time.

Returns

0 or error number.

{database}/{tablename}

absolute path of table

Reimplemented from ha_innobase.

delete_all_rows()

int ha_innopart::delete_all_rows ( void  )

inlineoverridevirtual

Delete all rows from the table.

Return values

HA_ERR_WRONG_COMMAND	if the table is transactional
0	on success

Reimplemented from ha_innobase.

delete_table()

int ha_innopart::delete_table ( const char *  name, const dd::Table *  dd_table  )

overridevirtual

Drop a table.

Parameters

[in]	name	table name
[in,out]	dd_table	data dictionary table

Returns

error number

Return values

0	on success

Reimplemented from ha_innobase.

disable_indexes()

int ha_innopart::disable_indexes ( uint  mode )

inlineoverridevirtual

Disable indexes.

Parameters

[in]

mode

disable index mode.

Returns

HA_ERR_* error code or 0

Reimplemented from ha_innobase.

discard_or_import_tablespace()

int ha_innopart::discard_or_import_tablespace ( bool  discard, dd::Table *  table_def  )

overridevirtual

Discards or imports an InnoDB tablespace.

Parameters

[in]	discard	True if discard, else import.
[in,out]	table_def	dd::Table describing table which tablespaces are to be imported or discarded. Can be adjusted by SE, the changes will be saved into the data-dictionary at statement commit time.

Returns

0 or error number.

Reimplemented from ha_innobase.

enable_indexes()

int ha_innopart::enable_indexes ( uint  mode )

inlineoverridevirtual

Enable indexes.

Parameters

[in]

mode

enable index mode.

Returns

HA_ERR_* error code or 0

Reimplemented from ha_innobase.

estimate_rows_upper_bound()

ha_rows ha_innopart::estimate_rows_upper_bound ( )

overridevirtual

Gives an UPPER BOUND to the number of rows in a table.

This is used in filesort.cc.

Returns

upper bound of rows.

Reimplemented from ha_innobase.

exchange_partition_low()

int ha_innopart::exchange_partition_low ( uint  part_id, dd::Table *  part_table, dd::Table *  swap_table  )

overrideprivatevirtual

Exchange partition.

Low-level primitive which implementation is provided here.

Parameters

[in]	part_id	The id of the partition to be exchanged
[in]	part_table	partitioned table to be exchanged
[in]	swap_table	table to be exchanged

Returns

error number

Return values

0	on success

Reimplemented from Partition_handler.

extra()

int ha_innopart::extra ( enum ha_extra_function  operation )

overridevirtual

Extra hints from MySQL.

Parameters

[in]

operation

Operation hint.

Returns

0 or error number.

Reimplemented from ha_innobase.

ft_init()

int ha_innopart::ft_init ( )

inlineoverridevirtual

Initialize FT index scan.

Returns

0 or error number

Reimplemented from ha_innobase.

ft_init_ext()

FT_INFO * ha_innopart::ft_init_ext ( uint  flags, uint  keynr, String *  key  )

inlineoverridevirtual

Initialize FT index scan.

Returns

FT_INFO structure if successful or NULL

Reimplemented from ha_innobase.

ft_init_ext_with_hints()

FT_INFO * ha_innopart::ft_init_ext_with_hints ( uint  keynr, String *  key, Ft_hints *  hints  )

inlineoverridevirtual

Initialize FT index scan.

Returns

FT_INFO structure if successful or NULL

Reimplemented from ha_innobase.

ft_read()

int ha_innopart::ft_read ( uchar *  buf )

inlineoverridevirtual

Fetch next result from the FT result set.

Returns

error code

Parameters

buf	in/out: buf contain result row

Reimplemented from ha_innobase.

get_auto_increment()

void ha_innopart::get_auto_increment ( ulonglong  offset, ulonglong  increment, ulonglong  nb_desired_values, ulonglong *  first_value, ulonglong *  nb_reserved_values  )

overridevirtual

Get the current auto_increment value.

Parameters

[in]	offset	Table auto-inc offset.
[in]	increment	Table auto-inc increment.
[in]	nb_desired_values	Number of required values.
[out]	first_value	The auto increment value.
[out]	nb_reserved_values	Number of reserved values.

Reimplemented from ha_innobase.

get_dynamic_partition_info()

void ha_innopart::get_dynamic_partition_info ( ha_statistics *  stat_info, ha_checksum *  check_sum, uint  part_id  )

inlineoverridevirtual

Implementing Partition_handler interface.

See also

partition_handler.h See Partition_handler.

Implements Partition_handler.

get_eq_range()

bool ha_innopart::get_eq_range ( ) const

inlineoverrideprivatevirtual

Implements Partition_helper.

get_foreign_dup_key()

bool ha_innopart::get_foreign_dup_key ( char *  child_table_name, uint  child_table_name_len, char *  child_key_name, uint  child_key_name_len  )

inlineoverridevirtual

Retrieves the names of the table and the key for which there was a duplicate entry in the case of HA_ERR_FOREIGN_DUPLICATE_KEY.

If any of the names is not available, then this method will return false and will not change any of child_table_name or child_key_name.

Parameters

[out]	child_table_name	Table name
[in]	child_table_name_len	Table name buffer size
[out]	child_key_name	Key name
[in]	child_key_name_len	Key name buffer size

Return values

true	table and key names were available and were written into the corresponding out parameters.
false	table and key names were not available, the out parameters were not touched.

Reimplemented from ha_innobase.

get_handler()

handler * ha_innopart::get_handler ( )

inlineoverridevirtual

Return the table handler.

For some partitioning specific functions it is still needed to access the handler directly for transaction handling (mark_trx_read_write()) and to assert correct locking.

Returns

handler or NULL if not supported.

Reimplemented from Partition_handler.

get_partition_handler()

Partition_handler * ha_innopart::get_partition_handler ( )

inlineoverridevirtual

Reimplemented from handler.

get_partition_row_type()

enum row_type ha_innopart::get_partition_row_type ( const dd::Table *  table, uint  part_id  )

overridevirtual

Get partition row type from SE.

Parameters

table	partition table
part_id	Id of partition for which row type to be retrieved

Returns

Partition row type.

Implements Partition_handler.

get_table()

TABLE * ha_innopart::get_table ( ) const

inlineoverrideprivatevirtual

Implements Partition_helper.

get_thd()

THD * ha_innopart::get_thd ( ) const

inlineoverrideprivatevirtual

Access methods to protected areas in handler to avoid adding friend class Partition_helper in class handler.

See also

partition_handler.h

Implements Partition_helper.

index_first()

int ha_innopart::index_first ( uchar *  buf )

inlineoverrideprotectedvirtual

Positions a cursor on the first record in an index and reads the corresponding row to buf.

Returns

0, HA_ERR_END_OF_FILE, or error code

Parameters

buf	in/out: buffer for the row

Reimplemented from ha_innobase.

index_last()

int ha_innopart::index_last ( uchar *  buf )

inlineoverrideprotectedvirtual

Positions a cursor on the last record in an index and reads the corresponding row to buf.

Returns

0, HA_ERR_END_OF_FILE, or error code

Parameters

buf	in/out: buffer for the row

Reimplemented from ha_innobase.

index_next()

int ha_innopart::index_next ( uchar *  buf )

inlineoverrideprotectedvirtual

Reads the next row from a cursor, which must have previously been positioned using index_read.

Returns

0, HA_ERR_END_OF_FILE, or error number

Parameters

buf	in/out: buffer for next row in MySQL format

Reimplemented from ha_innobase.

index_next_same()

int ha_innopart::index_next_same ( uchar *  buf, const uchar *  key, uint  keylen  )

inlineoverrideprotectedvirtual

Reads the next row matching to the key value given as the parameter.

Returns

0, HA_ERR_END_OF_FILE, or error number

Parameters

buf	in/out: buffer for the row
key	in: key value
keylen	in: key value length

Reimplemented from ha_innobase.

index_prev()

int ha_innopart::index_prev ( uchar *  buf )

inlineoverrideprotectedvirtual

Reads the previous row from a cursor, which must have previously been positioned using index_read.

Returns

0, HA_ERR_END_OF_FILE, or error number

Parameters

buf	in/out: buffer for previous row in MySQL format

Reimplemented from ha_innobase.

index_read_idx_map()

int ha_innopart::index_read_idx_map ( uchar *  buf, uint  index, const uchar *  key, key_part_map  keypart_map, enum ha_rkey_function  find_flag  )

inlineoverrideprotectedvirtual

Positions an index cursor to the index specified in argument.

Fetches the row if available. If the key value is null, begin at the first key of the index.

See also

index_read_map()

Reimplemented from handler.

index_read_last_map()

int ha_innopart::index_read_last_map ( uchar *  buf, const uchar *  key, key_part_map  keypart_map  )

inlineoverrideprotectedvirtual

The following functions works like index_read, but it find the last row with the current key value or prefix.

See also

index_read_map().

Reimplemented from handler.

index_read_map()

int ha_innopart::index_read_map ( uchar *  buf, const uchar *  key, key_part_map  keypart_map, enum ha_rkey_function  find_flag  )

inlineoverrideprotectedvirtual

Positions an index cursor to the index specified in the handle ('active_index').

Fetches the row if available. If the key value is null, begin at the first key of the index.

Returns

0 if success (found a record); non-zero if no record.

Reimplemented from handler.

info_low()

int ha_innopart::info_low ( uint  flag, bool  is_analyze  )

overrideprotectedvirtual

Updates and return statistics.

Returns statistics information of the table to the MySQL interpreter, in various fields of the handle object.

Parameters

[in]	flag	Flags for what to update and return.
[in]	is_analyze	True if called from "::analyze()".

Returns

HA_ERR_* error code or 0.

Reimplemented from ha_innobase.

initialize_partitioning()

void ha_innopart::initialize_partitioning ( partition_info *  part_info, bool  early  )

inline

innobase_get_index()

dict_index_t * ha_innopart::innobase_get_index ( uint  keynr )

inlineoverrideprivatevirtual

Get the index for the current partition.

Parameters

[in]

keynr

MySQL index number.

Returns

InnoDB index or NULL.

Reimplemented from ha_innobase.

innobase_initialize_autoinc()

int ha_innopart::innobase_initialize_autoinc ( )

private

Internally called for initializing auto increment value.

Should never be called, but defined to catch such errors.

Returns

0 on success else error code.

Only called from ha_innobase::discard_or_import_table_space() and should not do anything, since it is ha_innopart will initialize it on first usage.

innopart_get_index()

dict_index_t * ha_innopart::innopart_get_index ( uint  part_id, uint  keynr  )

inlineprivate

Get the index for a handle.

Does not change active index.

Parameters

[in]	keynr	Use this index; MAX_KEY means always clustered index, even if it was internally generated by InnoDB.
[in]	part_id	From this partition.

Returns

NULL or index instance.

inplace_alter_partition()

bool ha_innopart::inplace_alter_partition

(

Alter_inplace_info *

ha_alter_info

)

Alter the table structure in-place with operations specified using HA_ALTER_FLAGS and Alter_inplace_information.

This is for 'ALTER TABLE ... PARTITION' and a corresponding function to inplace_alter_table(). The level of concurrency allowed during this operation depends on the return value from check_if_supported_inplace_alter().

Parameters

[in,out]

ha_alter_info

Structure describing changes to be done by ALTER TABLE and holding data used during in-place alter.

Return values

true	Failure
false	Success

is_ignorable_error()

bool ha_innopart::is_ignorable_error ( int  error )

overridevirtual

Can error be ignored.

Parameters

[in]

error

Error code to check.

Returns

true if ignorable else false.

Reimplemented from handler.

key_and_rowid_cmp()

int ha_innopart::key_and_rowid_cmp ( KEY **  key_info, uchar *  a, uchar *  b  )

static

Compare key and rowid.

Helper function for sorting records in the priority queue. a/b points to table->record[0] rows which must have the key fields set. The bytes before a and b store the rowid. This is used for comparing/sorting rows first according to KEY and if same KEY, by rowid (ref).

Parameters

[in]	key_info	Null terminated array of index information.
[in]	a	Pointer to record+ref in first record.
[in]	b	Pointer to record+ref in second record.

Returns

Return value is SIGN(first_rec - second_rec)

Return values

0	Keys are equal.
-1	second_rec is greater than first_rec.
+1	first_rec is greater than second_rec.

next_partition_index()

int ha_innopart::next_partition_index ( )

private

Move to next partition and set its index.

Returns

0 for success else error number.

optimize()

int ha_innopart::optimize ( THD *  thd, HA_CHECK_OPT *  check_opt  )

overridevirtual

Optimize table.

This is mapped to "ALTER TABLE tablename ENGINE=InnoDB", which rebuilds the table in MySQL.

Parameters

[in]	thd	Connection thread handle.
[in]	check_opt	Currently ignored.

Returns

0 for success else error code.

Reimplemented from ha_innobase.

parallel_scan()

int ha_innopart::parallel_scan ( void *  scan_ctx, void **  thread_ctxs, Reader::Init_fn  init_fn, Reader::Load_fn  load_fn, Reader::End_fn  end_fn  )

overridevirtual

Start parallel read of data.

Parameters

[in]	scan_ctx	Scan context created by parallel_scan_init
[in]	thread_ctxs	context for each of the spawned threads
[in]	init_fn	callback called by each parallel load thread at the beginning of the parallel load.
[in]	load_fn	callback called by each parallel load thread when processing of rows is required.
[in]	end_fn	callback called by each parallel load thread when processing of rows has ended.

Returns

error code

0 on success

Reimplemented from ha_innobase.

parallel_scan_end()

void ha_innopart::parallel_scan_end ( void *  parallel_scan_ctx )

overridevirtual

Run the parallel read of data.

Parameters

[in]

parallel_scan_ctx

a scan context created by parallel_scan_init

Reimplemented from ha_innobase.

parallel_scan_init()

int ha_innopart::parallel_scan_init ( void *&  scan_ctx, size_t *  num_threads, bool  use_reserved_threads, size_t  max_desired_threads  )

overridevirtual

Get number of threads that would be spawned for parallel read.

Parameters

[out]	scan_ctx	A scan context created by this method that has to be used in parallel_scan
[out]	num_threads	Number of threads to be spawned
[in]	use_reserved_threads	true if reserved threads are to be used if we exhaust the max cap of number of parallel read threads that can be spawned at a time
[in]	max_desired_threads	Maximum number of desired read threads; passing 0 has no effect, it is ignored; upper-limited by the current value of innodb_parallel_read_threads.

Returns

error code

0 on success

Reimplemented from ha_innobase.

position()

void ha_innopart::position ( const uchar *  record )

inlineoverridevirtual

Store a reference to the current row to 'ref' field of the handle.

Note that in the case where we have generated the clustered index for the table, the function parameter is illogical: we MUST ASSUME that 'record' is the current 'position' of the handle, because if row ref is actually the row id internally generated in InnoDB, then 'record' does not contain it. We just guess that the row id must be for the record where the handle was positioned the last time.

Parameters

[in]

record

row in MySQL format

Reimplemented from ha_innobase.

prepare_inplace_alter_partition()

bool ha_innopart::prepare_inplace_alter_partition	(	TABLE *	altered_table,
		Alter_inplace_info *	ha_alter_info,
		const dd::Table *	old_dd_tab,
		dd::Table *	new_dd_tab
	)

Allows InnoDB to update internal structures with concurrent writes blocked (given that check_if_supported_inplace_alter() did not return HA_ALTER_INPLACE_NO_LOCK).

This is for 'ALTER TABLE ... PARTITION' and a corresponding function to inplace_alter_table(). This will be invoked before inplace_alter_partition().

Parameters

[in,out]	altered_table	TABLE object for new version of table
[in,out]	ha_alter_info	Structure describing changes to be done by ALTER TABLE and holding data used during in-place alter.
[in]	old_dd_tab	Table definition before the ALTER
[in,out]	new_dd_tab	Table definition after the ALTER

Return values

true	Failure
false	Success

print_error()

void ha_innopart::print_error ( int  error, myf  errflag  )

overridevirtual

Print error information.

Parameters

[in]	error	Error code (MySQL).
[in]	errflag	Flags.

Reimplemented from handler.

read_range_first()

int ha_innopart::read_range_first ( const key_range *  start_key, const key_range *  end_key, bool  eq_range_arg, bool  sorted  )

inlineoverridevirtual

Read first row between two ranges.

Store ranges for future calls to read_range_next.

Parameters

start_key	Start key. Is 0 if no min range
end_key	End key. Is 0 if no max range
eq_range_arg	Set to 1 if start_key == end_key
sorted	Set to 1 if result should be sorted per key

Note

Record is read into table->record[0]

Return values

0	Found row
HA_ERR_END_OF_FILE	No rows in range

Reimplemented from ha_innobase.

read_range_next()

int ha_innopart::read_range_next ( )

inlineoverridevirtual

Read next row between two endpoints.

Note

Record is read into table->record[0]

Return values

0	Found row
HA_ERR_END_OF_FILE	No rows in range

Reimplemented from ha_innobase.

records()

int ha_innopart::records ( ha_rows *  num_rows )

overrideprotectedvirtual

Total number of rows in all used partitions.

Returns the exact number of records that this client can see using this handler object.

Parameters

[out]

num_rows

Number of rows.

Returns

0 or error number.

Reimplemented from ha_innobase.

records_in_range()

ha_rows ha_innopart::records_in_range ( uint  keynr, key_range *  min_key, key_range *  max_key  )

overridevirtual

Estimates the number of index records in a range.

Parameters

[in]	keynr	Index number.
[in]	min_key	Start key value (or NULL).
[in]	max_key	End key value (or NULL).

Returns

estimated number of rows.

Reimplemented from ha_innobase.

release_auto_increment()

void ha_innopart::release_auto_increment ( )

inlineoverridevirtual

Do cleanup for auto increment calculation.

Reimplemented from ha_innobase.

rename_table()

int ha_innopart::rename_table ( const char *  from, const char *  to, const dd::Table *  from_table, dd::Table *  to_table  )

overridevirtual

Rename a table.

Parameters

[in]	from	table name before rename
[in]	to	table name after rename
[in]	from_table	data dictionary table before rename
[in,out]	to_table	data dictionary table after rename

Returns

error number

Return values

0	on success

Reimplemented from ha_innobase.

repair()

int ha_innopart::repair ( THD *  thd, HA_CHECK_OPT *  repair_opt  )

overridevirtual

Repair a partitioned table.

Only repairs records in wrong partitions (moves them to the correct partition or deletes them if not in any partition).

Parameters

[in]	thd	MySQL THD object/thread handle.
[in]	repair_opt	Repair options.

Returns

0 or error code.

Reimplemented from handler.

reset()

int ha_innopart::reset ( void  )

overrideprivatevirtual

Reset state of file to after 'open'.

This function is called after every statement for all tables used by that statement.

Reimplemented from ha_innobase.

rnd_next()

int ha_innopart::rnd_next ( uchar *  record )

inlineoverrideprotectedvirtual

Protected handler:: functions specific for native InnoDB partitioning.

See also

handler.h

Reimplemented from ha_innobase.

rnd_pos()

int ha_innopart::rnd_pos ( uchar *  buf, uchar *  pos  )

overrideprotectedvirtual

Get a row from a position.

Fetches a row from the table based on a row reference.

Parameters

[out]	buf	Returns the row in this buffer, in MySQL format.
[in]	pos	Position, given as primary key value or DB_ROW_ID (if no primary key) of the row in MySQL format. The length of data in pos has to be ref_length.

Returns

0, HA_ERR_KEY_NOT_FOUND or error code.

Reimplemented from ha_innobase.

set_dd_discard_attribute()

int ha_innopart::set_dd_discard_attribute	(	dd::Table *	table_def,
		bool	discard
	)

Set DD discard attribute for tablespace.

Parameters

[in]	table_def	dd table
[in]	discard	True if this table is discarded

Returns

0 or error number.

set_eq_range()

void ha_innopart::set_eq_range ( bool  eq_range_arg )

inlineoverrideprivatevirtual

Implements Partition_helper.

set_part_info()

void ha_innopart::set_part_info ( partition_info *  part_info, bool  early  )

inlineoverridevirtual

Set the partition info object to be used by the handler.

Parameters

part_info	Partition info to be used by the handler.
early	True if called when part_info only created and parsed, but not setup, checked or fixed.

Implements Partition_handler.

set_partition()

void ha_innopart::set_partition ( uint  part_id )

private

Change active partition.

Copies needed info into m_prebuilt from the partition specific memory.

Parameters

[in]

part_id

Partition to set as active.

set_range_key_part()

void ha_innopart::set_range_key_part ( KEY_PART_INFO *  key_part )

inlineoverrideprivatevirtual

Implements Partition_helper.

start_stmt()

int ha_innopart::start_stmt ( THD *  thd, thr_lock_type  lock_type  )

overridevirtual

Start statement.

MySQL calls this function at the start of each SQL statement inside LOCK TABLES. Inside LOCK TABLES the "::external_lock" method does not work to mark SQL statement borders. Note also a special case: if a temporary table is created inside LOCK TABLES, MySQL has not called external_lock() at all on that table. MySQL-5.0 also calls this before each statement in an execution of a stored procedure. To make the execution more deterministic for binlogging, MySQL-5.0 locks all tables involved in a stored procedure with full explicit table locks (thd_in_lock_tables(thd) holds in store_lock()) before executing the procedure.

Parameters

[in]	thd	Handle to the user thread.
[in]	lock_type	Lock type.

Returns

0 or error code.

Reimplemented from ha_innobase.

table_flags()

Table_flags ha_innopart::table_flags ( void  ) const

inlineoverridevirtual

Get the table flags to use for the statement.

Returns

table flags

Reimplemented from ha_innobase.

truncate_impl()

int ha_innopart::truncate_impl ( const char *  name, TABLE *  form, dd::Table *  table_def  )

private

TRUNCATE an InnoDB partitioned table.

Parameters

[in]	name	table name
[in]	form	table definition
[in,out]	table_def	dd::Table describing table to be truncated. Can be adjusted by SE, the changes will be saved into the data-dictionary at statement commit time.

Returns

error number

Return values

0	on success

truncate_partition_low()

int ha_innopart::truncate_partition_low ( dd::Table *  dd_table )

overrideprivatevirtual

Delete all rows in the requested partitions.

Done by deleting the partitions and recreate them again.

Parameters

[in,out]

dd_table

dd::Table object for partitioned table which partitions need to be truncated. Can be adjusted by this call. Changes to the table definition will be persisted in the data-dictionary at statement commit time.

Returns

0 or error number.

Reimplemented from Partition_handler.

update_create_info()

void ha_innopart::update_create_info ( HA_CREATE_INFO *  create_info )

overridevirtual

Update create_info.

Used in SHOW CREATE TABLE et al.

Parameters

[in,out]

create_info

Create info to update.

Reimplemented from ha_innobase.

update_part_elem()

void ha_innopart::update_part_elem ( partition_element *  part_elem, dict_table_t *  ib_table, bool  display_tablespace  )

private

Fill in data_dir_path and tablespace name from internal data dictionary.

Parameters

[in,out]	part_elem	Partition element to fill.
[in]	ib_table	InnoDB table to copy from.
[in]	display_tablespace	Display tablespace name if set.

update_partition()

void ha_innopart::update_partition ( uint  part_id )

private

Update active partition.

Copies needed info from m_prebuilt into the partition specific memory.

Parameters

[in]

part_id

Partition to set as active.

Member Data Documentation

m_bitset

byte* ha_innopart::m_bitset

private

byte array for sql_stat_start bitset

m_clust_pcur

btr_pcur_t* ha_innopart::m_clust_pcur

private

Original m_prebuilt->clust_pcur.

m_clust_pcur_parts

btr_pcur_t* ha_innopart::m_clust_pcur_parts

private

persistent cluster cursors per partition.

m_new_partitions

Altered_partitions* ha_innopart::m_new_partitions

private

New partitions during ADD/REORG/... PARTITION.

m_part_share

Ha_innopart_share* ha_innopart::m_part_share

private

Pointer to Ha_innopart_share on the TABLE_SHARE.

m_parts

ut::unique_ptr<saved_prebuilt_t[]> ha_innopart::m_parts

private

m_pcur

btr_pcur_t* ha_innopart::m_pcur

private

Original m_prebuilt->pcur.

m_pcur_map

uint16_t* ha_innopart::m_pcur_map

private

map from part_id to offset in above two arrays.

m_pcur_parts

btr_pcur_t* ha_innopart::m_pcur_parts

private

persistent cursors per partition.

m_reuse_mysql_template

bool ha_innopart::m_reuse_mysql_template

private

Can reuse the template for the previous partition.

m_sql_stat_start_parts

Sql_stat_start_parts ha_innopart::m_sql_stat_start_parts

private

sql_stat_start per partition.

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

• storage/innobase/handler/ha_innopart.h
• storage/innobase/handler/ha_innopart.cc
• storage/innobase/handler/handler0alter.cc