purge_iter_t Struct Reference

This is the purge pointer/iterator. More...

#include <trx0purge.h>

Public Member Functions
	purge_iter_t ()

Public Attributes
trx_id_t	trx_no
	Purge has advanced past all transactions whose number is less than this. More...
undo_no_t	undo_no
	Purge has advanced past all records whose undo number is less than this. More...
space_id_t	undo_rseg_space
	The last undo record resided in this space id. More...
trx_id_t	modifier_trx_id
	The transaction that created the undo log record, the Modifier trx id. More...

Detailed Description

This is the purge pointer/iterator.

We need both the undo no and the transaction no up to which purge has parsed and applied the records.

Constructor & Destructor Documentation

purge_iter_t()

purge_iter_t::purge_iter_t ( )

inline

Member Data Documentation

modifier_trx_id

trx_id_t purge_iter_t::modifier_trx_id

The transaction that created the undo log record, the Modifier trx id.

trx_no

trx_id_t purge_iter_t::trx_no

Purge has advanced past all transactions whose number is less than this.

undo_no

undo_no_t purge_iter_t::undo_no

Purge has advanced past all records whose undo number is less than this.

undo_rseg_space

space_id_t purge_iter_t::undo_rseg_space

The last undo record resided in this space id.

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

• storage/innobase/include/trx0purge.h