The idea is to use TABLE_LIST::lock_type for passing type of lock for
target table to mysql_load() instead of using LEX::lock_option
(which were rewritten by first subselect in SET clause).
This should also fix potential problem with LOAD DATA in SP
(it is important for them to have right lock_type in the table
list by the end of statement parsing).
(otherwise a deadlock when ALTER writes to
binlog holding LOCK_open, it causes binlog rotation,
binlog waits for prepared transactions to commit, and commit
needs LOCK_open to check for global read lock)
Added a test case for bug #8616.
item.h:
Fixed bug #8616.
Added class Item_null_result used in rollup processing.
sql_select.h, sql_select.cc:
Fixed bug #8616.
Added JOIN::rollup_write_data to cover rollup queries
with DISTINCT. Modified other rollup methods.
Changes to a test with a update to a table with 1001 columns, the last being a blob.
On HP, the test worked properly, but on other OSs, there's a problem with using the
blob column in an update where clause. The field method val_string(String *, char *)
should work, but doesn't seem to deal with blobd, and for some reason, cannot get
the correct value of the blob column from the byte pointer in update_row, "*old_data"
which is a byte pointer to the row in mysql format, that will be replaced with
"*new_data" (which conveniently has a field pointer to use to get values from).
Will document this.
Now one can use user variables as target for data loaded from file
(besides table's columns). Also LOAD DATA got new SET-clause in which
one can specify values for table columns as expressions.
For example the following is possible:
LOAD DATA INFILE 'words.dat' INTO TABLE t1 (a, @b) SET c = @b + 1;
This patch also implements new way of replicating LOAD DATA.
Now we do it similarly to other queries.
We store LOAD DATA query in new Execute_load_query event
(which is last in the sequence of events representing LOAD DATA).
When we are executing this event we simply rewrite part of query which
holds name of file (we use name of temporary file) and then execute it
as usual query. In the beggining of this sequence we use Begin_load_query
event which is almost identical to Append_file event
Rework to resolve ambigious grammer: conflict in join expression
handling of parentheses for nested joins and derived tables.
Tests included of failing statements
Optimize item construction for AND/OR logical expressions
Added feature to disable tests from a list in a file "disabled.def"
Moved down the code that disables, so that --do-test and --start-from
don't list the disabled tests not in range.
disabled.def:
List of test cases to temporarely disable
-This is mostly fixes for correct behaviour when using query cache + transactions + the thread that
fetches commit count from NDB at regular intervals. The major fix is to add a
list in thd_ndb, that keeps a list of NDB_SHARE's that were modified by
transaction and then "clearing" them in ndbcluster_commit.
Konstja and Georg, change sets 1.1806, 1.1805. These changes has been successfully
tested on both my own workstation (Suse 9.0) and production.mysql.com.
Added a test case for bug #9017.
item_cmpfunc.h:
A wrong not_null_tables method for Item_cond_xor
caused a conversion of a left join into an inner join
that was not valid.
