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Don't take unnecessary locks on supremum records when the

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srv_locks_unsafe_for_binlog option is enabled. Fixes an assertion failure in
the innodb_unsafe_binlog testcase when compiled with UNIV_DEBUG.
This commit is contained in:
osku 2006-06-08 06:14:09 +00:00
parent 870edae7e4
commit 85cd21bf65
1 changed files with 13 additions and 0 deletions
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13
row/row0sel.c
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@ -1359,6 +1359,12 @@ rec_loop:
if (srv_locks_unsafe_for_binlog
|| trx->isolation_level == TRX_ISO_READ_COMMITTED) {
if (page_rec_is_supremum(next_rec)) {
goto skip_lock;
}
lock_type = LOCK_REC_NOT_GAP;
} else {
lock_type = LOCK_ORDINARY;
@ -1377,6 +1383,7 @@ rec_loop:
}
}
skip_lock:
if (page_rec_is_infimum(rec)) {
/* The infimum record on a page cannot be in the result set,
@ -1407,6 +1414,12 @@ rec_loop:
if (srv_locks_unsafe_for_binlog
|| trx->isolation_level == TRX_ISO_READ_COMMITTED) {
if (page_rec_is_supremum(rec)) {
goto next_rec;
}
lock_type = LOCK_REC_NOT_GAP;
} else {
lock_type = LOCK_ORDINARY;