CURSOR_TYPE_READ_ONLY date/datetime filter server crash".
The fix adds support for Item_change_list in cursors (proper rollback
of the modified item tree).
Fixed the results of a test for group_concat.
After the fix foor bug #11639 the results became
correct.
olap.result, olap.test:
Added a test case for bug #11639.
sql_select.cc:
Fixed bug #11639: a wrong result set when using a view
instead of the underlying table in a rollup query
executed through filesort.
The old code did not take into account that we always
use an Item_ref object when referring to a view column.
item.h:
Fixed bug #11639.
Now if two Item_ref items ref1 and ref2 refer to the same field
then ref1->eq(ref2) returns 1.
Bug#11657 Creation of secondary index fails:
If TINYBLOB key part length is 255, it is equal
to field length. For BLOB, unlike for CHAR/VARCHAR,
we should keep a non-zero key part length, otherwise
"BLOB/TEXT column used in key specification without a key length"
error is produced afterwards.
type_blob.result, type_blob.test:
fixing tests accordinly
open cursor after mysql_stmt_execute" + post-review fixes.
The bug was caused by wrong flags in stmt->server_status on the client
side: if there was no cursor, the server didn't send server_status
flags to the client, and the old flags were used to set up the
fetch function of a statement. Consequently, stmt_read_row_from_cursor was
used when there was no cursor. The fix fixes the server to always
send server flags to the client.
bug #10617: Insert from same table to same table give incorrect result for bit(4) column.
bug #11091: union involving BIT: assertion failure in Item::tmp_table_field_from_field_type
bug #11572: MYSQL_TYPE_BIT not taken care of in temp. table creation for VIEWs
CURSOR_TYPE_READ_ONLY select within select".
The bug was caused by the reset of thd->mem_root to thd->main_mem_root in
Item_subselect::exec, which in turn triggered too early free_root() for
data which was needed on subsequent fetches from a cursor.
This reset also caused a memory leak in stored procedures, as
subsequent executions of instructions containing a subselect
were allocating memory in thd->main_mem_root, which is not freed
until the end of the entire SP, instead of the per-call mem_root,
which is freed in the end of execution of the instruction.
Added a test case for bug #10031.
opt_range.cc:
Fixed bug #10031: range condition was not used with
views. Range analyzer did not take into account that
view columns were always referred through Item_ref.
