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Merge mysql-5.1 to mysql-5.5.

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This commit is contained in:
Marko Mäkelä 2012-08-09 10:06:59 +03:00
commit f491c04f37
2 changed files with 42 additions and 33 deletions
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61
storage/innobase/btr/btr0pcur.c
View File

@ -348,44 +348,39 @@ btr_pcur_restore_position_func(
/* Restore the old search mode */
cursor->search_mode = old_mode;
if (btr_pcur_is_on_user_rec(cursor)) {
switch (cursor->rel_pos) {
case BTR_PCUR_ON:
if (!cmp_dtuple_rec(
tuple, btr_pcur_get_rec(cursor),
rec_get_offsets(btr_pcur_get_rec(cursor),
index, NULL,
ULINT_UNDEFINED, &heap))) {
switch (cursor->rel_pos) {
case BTR_PCUR_ON:
if (btr_pcur_is_on_user_rec(cursor)
&& !cmp_dtuple_rec(
tuple, btr_pcur_get_rec(cursor),
rec_get_offsets(btr_pcur_get_rec(cursor),
index, NULL,
ULINT_UNDEFINED, &heap))) {
/* We have to store the NEW value for
the modify clock, since the cursor can
now be on a different page! But we can
retain the value of old_rec */
/* We have to store the NEW value for
the modify clock, since the cursor can
now be on a different page! But we can
retain the value of old_rec */
cursor->block_when_stored =
btr_pcur_get_block(cursor);
cursor->modify_clock =
buf_block_get_modify_clock(
cursor->block_when_stored);
cursor->old_stored = BTR_PCUR_OLD_STORED;
cursor->block_when_stored =
btr_pcur_get_block(cursor);
cursor->modify_clock =
buf_block_get_modify_clock(
cursor->block_when_stored);
cursor->old_stored = BTR_PCUR_OLD_STORED;
mem_heap_free(heap);
mem_heap_free(heap);
return(TRUE);
}
break;
case BTR_PCUR_BEFORE:
page_cur_move_to_next(btr_pcur_get_page_cur(cursor));
break;
case BTR_PCUR_AFTER:
page_cur_move_to_prev(btr_pcur_get_page_cur(cursor));
break;
#ifdef UNIV_DEBUG
default:
ut_error;
#endif /* UNIV_DEBUG */
return(TRUE);
}
#ifdef UNIV_DEBUG
/* fall through */
case BTR_PCUR_BEFORE:
case BTR_PCUR_AFTER:
break;
default:
ut_error;
#endif /* UNIV_DEBUG */
}
mem_heap_free(heap);

14
storage/innobase/row/row0merge.c
View File

@ -1235,11 +1235,25 @@ row_merge_read_clustered_index(
goto err_exit;
}
/* Store the cursor position on the last user
record on the page. */
btr_pcur_move_to_prev_on_page(&pcur);
/* Leaf pages must never be empty, unless
this is the only page in the index tree. */
ut_ad(btr_pcur_is_on_user_rec(&pcur)
|| buf_block_get_page_no(
btr_pcur_get_block(&pcur))
== clust_index->page);
btr_pcur_store_position(&pcur, &mtr);
mtr_commit(&mtr);
mtr_start(&mtr);
/* Restore position on the record, or its
predecessor if the record was purged
meanwhile. */
btr_pcur_restore_position(BTR_SEARCH_LEAF,
&pcur, &mtr);
/* Move to the successor of the original record. */
has_next = btr_pcur_move_to_next_user_rec(&pcur, &mtr);
}