diff options
Diffstat (limited to 'storage/innobase/include/row0mysql.h')
| -rw-r--r-- | storage/innobase/include/row0mysql.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/storage/innobase/include/row0mysql.h b/storage/innobase/include/row0mysql.h index 9b2f3250486..5430190fa51 100644 --- a/storage/innobase/include/row0mysql.h +++ b/storage/innobase/include/row0mysql.h @@ -656,6 +656,21 @@ struct row_prebuilt_struct { This eliminates lock waits in some cases; note that this breaks serializability. */ + ulint new_rec_locks; /* normally 0; if + srv_locks_unsafe_for_binlog is + TRUE or session is using READ + COMMITTED isolation level, in a + cursor search, if we set a new + record lock on an index, this is + incremented; this is used in + releasing the locks under the + cursors if we are performing an + UPDATE and we determine after + retrieving the row that it does + not need to be locked; thus, + these can be used to implement a + 'mini-rollback' that releases + the latest record locks */ ulint mysql_prefix_len;/* byte offset of the end of the last requested column */ ulint mysql_row_len; /* length in bytes of a row in the |