MySQL 8.0.31
Source Code Documentation
trx0rec.ic File Reference

Transaction undo log record. More...

Functions

static ulint trx_undo_rec_get_type (const trx_undo_rec_t *undo_rec)
 Reads from an undo log record the record type. More...
 
static ulint trx_undo_rec_get_cmpl_info (const trx_undo_rec_t *undo_rec)
 Reads from an undo log record the record compiler info. More...
 
static bool trx_undo_rec_get_extern_storage (const trx_undo_rec_t *undo_rec)
 Returns true if an undo log record contains an extern storage field. More...
 
static undo_no_t trx_undo_rec_get_undo_no (const trx_undo_rec_t *undo_rec)
 Reads the undo log record number. More...
 
static trx_undo_rec_ttrx_undo_rec_copy (const page_t *undo_page, uint32_t undo_offset, mem_heap_t *heap)
 

Detailed Description

Transaction undo log record.

Created 3/26/1996 Heikki Tuuri

Function Documentation

◆ trx_undo_rec_copy()

static trx_undo_rec_t * trx_undo_rec_copy ( const page_t undo_page,
uint32_t  undo_offset,
mem_heap_t heap 
)
inlinestatic

◆ trx_undo_rec_get_cmpl_info()

static ulint trx_undo_rec_get_cmpl_info ( const trx_undo_rec_t undo_rec)
inlinestatic

Reads from an undo log record the record compiler info.

Returns
compiler info
Parameters
undo_recin: undo log record

◆ trx_undo_rec_get_extern_storage()

static bool trx_undo_rec_get_extern_storage ( const trx_undo_rec_t undo_rec)
inlinestatic

Returns true if an undo log record contains an extern storage field.

Returns
true if extern
Parameters
undo_recin: undo log record

◆ trx_undo_rec_get_type()

static ulint trx_undo_rec_get_type ( const trx_undo_rec_t undo_rec)
inlinestatic

Reads from an undo log record the record type.

Returns
record type
Parameters
undo_recin: undo log record

◆ trx_undo_rec_get_undo_no()

static undo_no_t trx_undo_rec_get_undo_no ( const trx_undo_rec_t undo_rec)
inlinestatic

Reads the undo log record number.

Returns
undo no
Parameters
undo_recin: undo log record