This bug appeared after the patch for bug 21390 that had added some code
to handle outer joins with no matches after substitution of a const
table in an efficient way. That code as it is cannot be applied to the case
of nested outer join operations. Being applied to the queries with
nested outer joins the code can cause crashes or wrong result sets.
The fix blocks row substitution for const inner tables of an outer join
if the inner operand is not a single table.
spatial index
While executing OPTIMIZE TABLE on MyISAM tables the server re-creates the
index file(s) in order to sort them physically by the key. This cannot be
done for R-tree indexes as it makes no sense.
The server was not checking the type of the index and was accessing an
R-tree index as if it was a B-tree.
Fixed by preventing sorting the index file if it contains an R-tree index.
the UDF
When deleting a user defined function MySQL must remove it from both the
in-memory hash table and the mysql.proc system table.
Finding (and removal therefore) from the internal hash table is case
insensitive (or whatever the default charset is), whereas finding and
removal from the system table is case sensitive.
As a result if you supply a function name that is not in the same character
case to DROP FUNCTION the server will remove the function only from the
in-memory hash table and will keep the row in mysql.proc system table.
This will cause inconsistency between the two structures (that is fixed
only by restarting the server).
Fixed by using the name in the precise case (from the in-memory hash table)
to delete the row in the mysql.proc system table.
Removed an assertion that was not valid for the cases where the query
in a prepared statement contained a single-row non-correlated
subquery that was used as an argument of the IS NULL predicate.
The problem is that the GEOMETRY NOT NULL can't automatically set
any value as a default one. We always tried to complete LOAD DATA
command even if there's not enough data in file. That doesn't work
for GEOMETRY NOT NULL. Now Field_*::reset() returns an error sign
and it's checked in mysql_load()
If --srcdir and --windows is given, check if error message file
is in source or build tree (bug#24557)
Makefile.am:
Cleaned up "ali_check" target, to satisfy "distcleancheck" (bug#24557)
mysql_install_db.sh:
Added --srcdir=DIR option, used from top Makefile.am in dist-hook
target, to find "fill_help_tables.sql" in VPATH build (bug#24557)
Makefile.am:
Work around problem with "distcleancheck", "sql_yacc.cc" might be in both
the source and build tree.
Call "mysql_install_db" with new option --srcdir, to enable the script
to find all that is needed, if source and build directory is not the same
(bug#24557)
