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branches/zip: btr_cur_optimistic_delete(): Note that no further pages

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must be latched before calling mtr_commit(mtr) if the function returns TRUE.
This commit is contained in:
marko 2008-12-16 10:14:58 +00:00
parent 1297a39ffe
commit ba65432056
2 changed files with 8 additions and 2 deletions
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5
btr/btr0cur.c
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@ -2722,7 +2722,10 @@ btr_cur_optimistic_delete(
delete; cursor stays valid: if deletion delete; cursor stays valid: if deletion
succeeds, on function exit it points to the succeeds, on function exit it points to the
successor of the deleted record */ successor of the deleted record */
mtr_t* mtr) /* in: mtr */ mtr_t* mtr) /* in: mtr; if this function returns
TRUE on a leaf page of a secondary
index, the mtr must be committed
before latching any further pages */
{ {
buf_block_t* block; buf_block_t* block;
rec_t* rec; rec_t* rec;

5
include/btr0cur.h
View file

@ -353,7 +353,10 @@ btr_cur_optimistic_delete(
cursor stays valid: if deletion succeeds, cursor stays valid: if deletion succeeds,
on function exit it points to the successor on function exit it points to the successor
of the deleted record */ of the deleted record */
mtr_t* mtr); /* in: mtr */ mtr_t* mtr); /* in: mtr; if this function returns
TRUE on a leaf page of a secondary
index, the mtr must be committed
before latching any further pages */
/***************************************************************** /*****************************************************************
Removes the record on which the tree cursor is positioned. Tries Removes the record on which the tree cursor is positioned. Tries
to compress the page if its fillfactor drops below a threshold to compress the page if its fillfactor drops below a threshold