- Make do_fill_table() use join_tab->cache_select->cond if it is present. When
join_tab->cache_select->cond is present, join_tab->select_cond doesn't have any
conditions that are usable for I_S optimizations.
use the Alter_inplace_info::ALTER_COLUMN_OPTION flag if
field/column flags were altered.
change ha_example to use check_if_supported_inplace_alter() instead
of obsolete check_if_incompatible_data()
- Change the default flag value to ON.
- Update the testcases to be run extended_keys=ON:
= trivial test result updates
= If extended_keys setting makes a difference for a testcase, run the testcase
with extended_keys=off. There were only a few such cases
- Update to vcol_select_innodb looks like a worse plan but it will be gone in 10.0.
MDEV-4556 Server crashes in SEL_ARG::rb_insert with index_merge+index_merge_sort_union, FORCE INDEX
- merge_same_index_scans() may put the same SEL_ARG tree in multiple result plans.
make it call incr_refs() on the SEL_ARG trees that it does key_or() on, because
key_or(sel_arg_tree_1, sel_arg_tree_2) call may invalidate SEL_ARG trees pointed
by sel_arg_tree_1 and sel_arg_tree_2.
The result is EMPTY for a buffer(line, -1), but we still
need one FALSE operation to be stored in the condition.
And we actually add it but forgot to alloc memory to store it.
MDEV-5555: Incorrect index_merge on BTREE indices
- In ha_partition, make ordered index reads return rows in rowid order
when index columns are the same.
- The problem was that JOIN::prepare() tried to set TABLE::maybe_null
for a table in join. Non-merged semi-join tables 1) are present as
join's base tables on second EXECUTE, but 2) do not yet have a TABLE
object.
Worked around the problem by putting mixed_implicit_grouping into JOIN
object, and then passing it to JTBM tables in setup_jtbm_semi_joins().
Deadlock happened due to mixed lock order.
CREATE/DROP function: wrlock(THR_LOCK_udf) -> lock(LOCK_open)
SELECT from view: lock(LOCK_open) -> rdlock(THR_LOCK_udf)
Fixed CREATE/DROP function so that LOCK_open does not intersect with
wrlock(THR_LOCK_udf).
10.0 is not affected: it doesn't hold LOCK_open while opening view.
The function calculate_cond_selectivity_for_table() must consider
the case when the key range tree returned by the call of get_mm_tree()
is of the type SEL_TREE::ALWAYS.
Problem was that we used cache_table in some cases where it was not initialized
mysql-test/r/func_group.result:
Added test case
mysql-test/t/func_group.test:
Added test case
sql/item.cc:
Don't use cached_table if not set
sql/item_sum.cc:
Don't use cached_table
Patches for server and the Innodb engine.
Server is fixed so it does nothing if no indexes left to alter.
Innodb parser is fixed so it looks for the IF [NOT] EXISTS option in a string.
Another change is that it uses the index name for the internal dictionary.
Prior to that it only used the CONSTRAINT name for it.
The field JOIN::select_lex->where should be updated after the call
of remove_eq_conds() in the function make_join_statistics(). This
matters for subselects.
mysql-test/r/create_or_replace.result:
Added test case
mysql-test/t/create_or_replace.test:
Added test case
sql/sql_base.cc:
Downgrade locks in LOCK TABLES + CREATE TABLE OR REPLACE
sql/sql_table.cc:
Downgrade locks in LOCK TABLES + CREATE TABLE OR REPLACE
