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Merge jlindstrom@bk-internal.mysql.com:/home/bk/mysql-4.1

Browse source 
into hundin.mysql.fi:/home/jan/mysql-4.1
This commit is contained in:
unknown 2005-02-08 14:51:05 +02:00
commit a73256494e
1 changed files with 21 additions and 2 deletions
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23
sql/ha_innodb.cc
View file

@ -5282,8 +5282,27 @@ ha_innobase::store_lock(
are not simple SELECTs; note that select_lock_type in this
case may get strengthened in ::external_lock() to LOCK_X. */
prebuilt->select_lock_type = LOCK_S;
prebuilt->stored_select_lock_type = LOCK_S;
if (srv_locks_unsafe_for_binlog &&
prebuilt->trx->isolation_level != TRX_ISO_SERIALIZABLE &&
(lock_type == TL_READ || lock_type == TL_READ_NO_INSERT) &&
thd->lex->sql_command != SQLCOM_SELECT &&
thd->lex->sql_command != SQLCOM_UPDATE_MULTI &&
thd->lex->sql_command != SQLCOM_DELETE_MULTI ) {
/* In case we have innobase_locks_unsafe_for_binlog
option set and isolation level of the transaction
is not set to serializable and MySQL is doing
INSERT INTO...SELECT without FOR UPDATE or IN
SHARE MODE we use consistent read for select.
Similarly, in case of DELETE...SELECT and
UPDATE...SELECT when these are not multi table.*/
prebuilt->select_lock_type = LOCK_NONE;
prebuilt->stored_select_lock_type = LOCK_NONE;
} else {
prebuilt->select_lock_type = LOCK_S;
prebuilt->stored_select_lock_type = LOCK_S;
}
} else if (lock_type != TL_IGNORE) {