mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
2662b59306
Docs/manual.texi: Added Innobase documentation configure.in: Incremented version include/my_base.h: Added option for Innobase myisam/mi_check.c: cleanup mysql-test/t/bdb.test: cleanup mysql-test/t/innobase.test: Extended with new tests from bdb.test mysql-test/t/merge.test: Added test of SHOW create mysys/my_init.c: Fix for UNIXWARE 7 scripts/mysql_install_db.sh: Always write how to start mysqld scripts/safe_mysqld.sh: Fixed type sql/ha_innobase.cc: Update to new version sql/ha_innobase.h: Update to new version sql/handler.h: Added 'update_table_comment()' and 'append_create_info()' sql/sql_delete.cc: Fixes for Innobase sql/sql_select.cc: Fixes for Innobase sql/sql_show.cc: Append create information (for MERGE tables) sql/sql_update.cc: Fixes for Innobase
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/******************************************************
|
|
Purge obsolete records
|
|
|
|
(c) 1997 Innobase Oy
|
|
|
|
Created 3/14/1997 Heikki Tuuri
|
|
*******************************************************/
|
|
|
|
#ifndef row0purge_h
|
|
#define row0purge_h
|
|
|
|
#include "univ.i"
|
|
#include "data0data.h"
|
|
#include "btr0types.h"
|
|
#include "btr0pcur.h"
|
|
#include "dict0types.h"
|
|
#include "trx0types.h"
|
|
#include "que0types.h"
|
|
#include "row0types.h"
|
|
|
|
/************************************************************************
|
|
Creates a purge node to a query graph. */
|
|
|
|
purge_node_t*
|
|
row_purge_node_create(
|
|
/*==================*/
|
|
/* out, own: purge node */
|
|
que_thr_t* parent, /* in: parent node, i.e., a thr node */
|
|
mem_heap_t* heap); /* in: memory heap where created */
|
|
/***************************************************************
|
|
Does the purge operation for a single undo log record. This is a high-level
|
|
function used in an SQL execution graph. */
|
|
|
|
que_thr_t*
|
|
row_purge_step(
|
|
/*===========*/
|
|
/* out: query thread to run next or NULL */
|
|
que_thr_t* thr); /* in: query thread */
|
|
|
|
/* Purge node structure */
|
|
|
|
struct purge_node_struct{
|
|
que_common_t common; /* node type: QUE_NODE_PURGE */
|
|
/*----------------------*/
|
|
/* Local storage for this graph node */
|
|
dulint roll_ptr;/* roll pointer to undo log record */
|
|
trx_undo_rec_t* undo_rec;/* undo log record */
|
|
trx_undo_inf_t* reservation;/* reservation for the undo log record in
|
|
the purge array */
|
|
dulint undo_no;/* undo number of the record */
|
|
ulint rec_type;/* undo log record type: TRX_UNDO_INSERT_REC,
|
|
... */
|
|
btr_pcur_t pcur; /* persistent cursor used in searching the
|
|
clustered index record */
|
|
ibool found_clust;/* TRUE if the clustered index record
|
|
determined by ref was found in the clustered
|
|
index, and we were able to position pcur on
|
|
it */
|
|
dict_table_t* table; /* table where purge is done; NOTE that the
|
|
table has to be released explicitly with
|
|
dict_table_release */
|
|
ulint cmpl_info;/* compiler analysis info of an update */
|
|
upd_t* update; /* update vector for a clustered index record */
|
|
dtuple_t* ref; /* NULL, or row reference to the next row to
|
|
handle */
|
|
dtuple_t* row; /* NULL, or a copy (also fields copied to
|
|
heap) of the indexed fields of the row to
|
|
handle */
|
|
dict_index_t* index; /* NULL, or the next index whose record should
|
|
be handled */
|
|
mem_heap_t* heap; /* memory heap used as auxiliary storage for
|
|
row; this must be emptied after a successful
|
|
purge of a row */
|
|
};
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "row0purge.ic"
|
|
#endif
|
|
|
|
#endif
|