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| author | unknown <marko@hundin.mysql.fi> | 2005-03-01 13:54:48 +0200 |
|---|---|---|
| committer | unknown <marko@hundin.mysql.fi> | 2005-03-01 13:54:48 +0200 |
| commit | 45c942a51105af9f96b486450050ac637c3518d9 (patch) | |
| tree | e9beb9a3927aeb8ca7ad47994c4a5841947c0589 /innobase/page/page0cur.c | |
| parent | 10c65140f23055edf12b54eb43726cbcd89be9a7 (diff) | |
| download | mariadb-git-45c942a51105af9f96b486450050ac637c3518d9.tar.gz | |
InnoDB: Zero fill newly created pages and deleted records to
remove old junk and to improve compression ratio.
InnoDB: Make implicit type conversions explicit. (Bug #8826)
innobase/btr/btr0cur.c:
Add "offsets" parameter to page_cur_delete_rec() calls
btr_cur_optimistic_delete(): Simplify the logic with a flag variable
btr_cur_pessimistic_delete(): Compute "offsets" earlier
innobase/include/page0cur.h:
page_cur_delete_rec(): Add parameter "offsets"
innobase/include/page0page.h:
page_mem_free(): Replace parameter "index" with "offsets"
innobase/include/page0page.ic:
page_mem_free(): Replace parameter "index" with "offsets".
Clear the data bytes of the freed record.
(The "extra" bytes will be needed by free space management.)
innobase/include/rem0rec.h:
Remove unnecessary function rec_get_size()
innobase/log/log0recv.c:
Remove function rec_apply_log_recs_for_backup()
unless #ifdef UNIV_HOTBACKUP.
innobase/page/page0cur.c:
Add parameter "offsets" to page_cur_delete_rec().
innobase/page/page0page.c:
page_create(): Zero fill the data area.
page_delete_rec_list_start(): Add parameter "offsets"
to page_cur_delete_rec().
innobase/rem/rem0rec.c:
Remove unnecessary function rec_get_size().
Fix compiler warnings about implicit type conversions. (Bug #8826)
innobase/srv/srv0srv.c:
Fix compiler warnings about implicit type conversions. (Bug #8826)
innobase/sync/sync0sync.c:
Fix compiler warnings about implicit type conversions. (Bug #8826)
Diffstat (limited to 'innobase/page/page0cur.c')
| -rw-r--r-- | innobase/page/page0cur.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/innobase/page/page0cur.c b/innobase/page/page0cur.c index 488d2757115..d083cc26069 100644 --- a/innobase/page/page0cur.c +++ b/innobase/page/page0cur.c @@ -1267,9 +1267,18 @@ page_cur_parse_delete_rec( ut_a(offset <= UNIV_PAGE_SIZE); if (page) { - page_cur_position(page + offset, &cursor); + mem_heap_t* heap = NULL; + ulint offsets_[100] = { 100, }; + rec_t* rec = page + offset; + + page_cur_position(rec, &cursor); - page_cur_delete_rec(&cursor, index, mtr); + page_cur_delete_rec(&cursor, index, + rec_get_offsets(rec, index, offsets_, + ULINT_UNDEFINED, &heap), mtr); + if (heap) { + mem_heap_free(heap); + } } return(ptr); @@ -1284,6 +1293,7 @@ page_cur_delete_rec( /*================*/ page_cur_t* cursor, /* in: a page cursor */ dict_index_t* index, /* in: record descriptor */ + const ulint* offsets,/* in: rec_get_offsets(cursor->rec, index) */ mtr_t* mtr) /* in: mini-transaction handle */ { page_dir_slot_t* cur_dir_slot; @@ -1300,6 +1310,7 @@ page_cur_delete_rec( page = page_cur_get_page(cursor); current_rec = cursor->rec; + ut_ad(rec_offs_validate(current_rec, index, offsets)); /* The record must not be the supremum or infimum record. */ ut_ad(current_rec != page_get_supremum_rec(page)); @@ -1365,7 +1376,7 @@ page_cur_delete_rec( page_dir_slot_set_n_owned(cur_dir_slot, cur_n_owned - 1); /* 6. Free the memory occupied by the record */ - page_mem_free(page, current_rec, index); + page_mem_free(page, current_rec, offsets); /* 7. Now we have decremented the number of owned records of the slot. If the number drops below PAGE_DIR_SLOT_MIN_N_OWNED, we balance the |