weakens the locks for this session similarly like the option
innodb_locks_unsafe_for_binlog. This patch removes almost all
gap locking (used in next-key locking) and makes MySQL to release
the row locks on the rows which does not belong to result set.
Additionally, nonlocking selects on INSERT INTO SELECT,
UPDATE ... (SELECT ...), and CREATE ... SELECT ... use a
nonlocking consistent read. If a binlog is used, then binlog
format should be set to row based binloging to make the execution
of the complex SQL statements.
duplicate http://bugs.mysql.com/bug.php?id=17134 : MySQL's partitioned
table code does not set prebuilt->sql_stat_start right if it does an
insert in the same statement after doing a search first in the same
partition table. We now write trx id always to the buffer, not just when
flag sql_stat_start is on. This will waste CPU time very slightly.
a duplicate record to a clustered index comprising
more than about 90 columns. (Bug #18384)
row_ins_duplicate_error_in_clust(): Call mem_heap_free(heap) at func_exit
if needed.
r340: Fix http://bugs.mysql.com/bug.php?id=18283 in ha_innodb.cc and
http://bugs.mysql.com/bug.php?id=18238 in InnoDB
r339: Remove disk space leak on update of BLOB columns (Bug #18252).
btr_cur_pessimistic_update(): Invoke rec_get_offsets() after
rec_set_field_extern_bits().
btr_store_big_rec_extern_fields(): Note that offsets will no longer be
valid after calling this function.
r338: Fix bug 18238 : check in pessimistic insert and update if the buffer
pool is exhausted by locks
Remove UNIV_RELEASE_NOT_YET_STABLE and related checks.
page_rec_is_comp(): Remove the bounds check.
row_sel_field_store_in_mysql_format(): Turn the assertions on mbminlen,
mbmaxlen and templ->type into debug assertions.
row_upd_index_replace_new_col_vals_index_pos(): Add a parameter, "ibool
order_only", for limiting the replacement to the ordering fields of the
index. Adjust callers.
In this port, the comment for the parameter was adjusted to make it clear
that it only supports clustered indexes.
probably caching. Fixed test results.
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
which can contain the new flag DICT_TF_COMPACT. Change dict_mem_table_create
to take a flags argument. Add dict_table_is_comp(). Adapt all users.
Change some places to explicitly assume that system tables do not use the
compact page format.
