into mysql.com:/home/svoj/devel/mysql/merge/mysql-5.0-engines
BitKeeper/etc/ignore:
auto-union
mysql-test/r/myisam.result:
Auto merged
mysql-test/t/myisam.test:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/table.cc:
Auto merged
into moonbone.local:/work/5505-bug-5.0-opt-mysql
sql/share/errmsg.txt:
Auto merged
sql/sql_base.cc:
Auto merged
mysql-test/r/view.result:
Manual merge
mysql-test/t/view.test:
Manual merge
On an INSERT into an updatable but non-insertable view an error message was
issued stating the view being not updatable. This can lead to a confusion of a
user.
A new error message is introduced. Is is showed when a user tries to insert
into a non-insertable view.
sql/sql_base.cc:
Fixed bug#5505: Wrong error message on INSERT into a view
The update_non_unique_table_error() function now issues proper
error for an INSERT.
sql/sql_insert.cc:
Fixed bug#5505: Wrong error message on INSERT into a view
Issue the ER_NON_INSERTABLE_TABLE error instead of the
ER_NON_UPDATABLE_TABLE on insert into a view.
sql/sql_view.cc:
Fixed bug#5505: Wrong error message on INSERT into a view
Issue the ER_NON_INSERTABLE_TABLE error instead of the
ER_NON_UPDATABLE_TABLE on insert into a view.
mysql-test/r/view.result:
Added the test case for bug#5505: Wrong error message on INSERT into a view
Corrected a few test cases after fixing bug#5505
mysql-test/t/view.test:
Added the test case for bug#5505: Wrong error message on INSERT into a view
Corrected a few test cases after fixing bug#5505
sql/share/errmsg.txt:
Fixed bug#5505: Wrong error message on INSERT into a view
Added the ER_NON_INSERTABLE_TABLE error definition.
into april.(none):/home/svoj/devel/mysql/merge/mysql-5.0-engines
mysql-test/r/myisam.result:
Auto merged
mysql-test/t/myisam.test:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/share/errmsg.txt:
SCCS merged
"strict mode: inserts autogenerated auto_increment value bigger than max"
Strict mode should fail if autoincrement value is out of range
include/my_base.h:
Add new handler error codes
sql/ha_berkeley.cc:
handle error in update_auto_increment()
sql/ha_heap.cc:
handle error in update_auto_increment()
sql/ha_innodb.cc:
handle error in update_auto_increment()
sql/ha_myisam.cc:
handle error in update_auto_increment()
sql/ha_myisammrg.cc:
handle error in update_auto_increment()
sql/ha_ndbcluster.cc:
handle error in update_auto_increment()
sql/handler.cc:
return error from handler::update_auto_increment()
sql/handler.h:
change return type of handler::update_auto_increment() to int
sql/share/errmsg.txt:
new error message for auto-increment
mysql-test/include/strict_autoinc.inc:
New BitKeeper file ``mysql-test/include/strict_autoinc.inc''
mysql-test/r/strict_autoinc_1myisam.result:
New BitKeeper file ``mysql-test/r/strict_autoinc_1myisam.result''
mysql-test/r/strict_autoinc_2innodb.result:
New BitKeeper file ``mysql-test/r/strict_autoinc_2innodb.result''
mysql-test/r/strict_autoinc_3heap.result:
New BitKeeper file ``mysql-test/r/strict_autoinc_3heap.result''
mysql-test/r/strict_autoinc_4bdb.result:
New BitKeeper file ``mysql-test/r/strict_autoinc_4bdb.result''
mysql-test/r/strict_autoinc_5ndb.result:
New BitKeeper file ``mysql-test/r/strict_autoinc_5ndb.result''
mysql-test/t/strict_autoinc_1myisam.test:
New BitKeeper file ``mysql-test/t/strict_autoinc_1myisam.test''
mysql-test/t/strict_autoinc_2innodb.test:
New BitKeeper file ``mysql-test/t/strict_autoinc_2innodb.test''
mysql-test/t/strict_autoinc_3heap.test:
New BitKeeper file ``mysql-test/t/strict_autoinc_3heap.test''
mysql-test/t/strict_autoinc_4bdb.test:
New BitKeeper file ``mysql-test/t/strict_autoinc_4bdb.test''
mysql-test/t/strict_autoinc_5ndb.test:
New BitKeeper file ``mysql-test/t/strict_autoinc_5ndb.test''
into bodhi.local:/opt/local/work/mysql-5.0-14897
configure.in:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/im_life_cycle.result:
Auto merged
mysql-test/t/im_life_cycle.imtest:
Auto merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
Auto merged
mysql-test/r/grant.result:
Manual merge.
mysql-test/r/view.result:
Manual merge.
mysql-test/t/grant.test:
Manual merge.
mysql-test/t/view.test:
Manual merge.
User name (host name) has limit on length. The server code relies on these
limits when storing the names. The problem was that sometimes these limits
were not checked properly, so that could lead to buffer overflow.
The fix is to check length of user/host name in parser and if string is too
long, throw an error.
mysql-test/r/grant.result:
Updated result file.
mysql-test/r/sp.result:
Updated result file.
mysql-test/r/trigger.result:
Updated result file.
mysql-test/r/view.result:
Updated result file.
mysql-test/t/grant.test:
Added test for BUG#16899.
mysql-test/t/sp.test:
Added test for BUG#16899.
mysql-test/t/trigger.test:
Added test for BUG#16899.
mysql-test/t/view.test:
Added test for BUG#16899.
sql/mysql_priv.h:
Added prototype for new function.
sql/share/errmsg.txt:
Added new resources.
sql/sql_acl.cc:
Remove outdated checks.
sql/sql_parse.cc:
Add a new function for checking string length.
sql/sql_yacc.yy:
Check length of user/host name.
into xiphis.org:/home/antony/work2/mysql-5.0-merge
mysql-test/r/create.result:
Auto merged
mysql-test/r/federated.result:
Auto merged
mysql-test/r/insert_select.result:
Auto merged
mysql-test/r/ps_2myisam.result:
Auto merged
mysql-test/r/ps_3innodb.result:
Auto merged
mysql-test/r/ps_4heap.result:
Auto merged
mysql-test/r/ps_5merge.result:
Auto merged
mysql-test/r/ps_6bdb.result:
Auto merged
mysql-test/r/ps_7ndb.result:
Auto merged
mysql-test/r/strict.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/r/warnings.result:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
columns
Fixed confusing warning.
Quoting INSERT section of the manual:
----
Inserting NULL into a column that has been declared NOT NULL. For
multiple-row INSERT statements or INSERT INTO ... SELECT statements, the
column is set to the implicit default value for the column data type. This
is 0 for numeric types, the empty string ('') for string types, and the
"zero" value for date and time types. INSERT INTO ... SELECT statements are
handled the same way as multiple-row inserts because the server does not
examine the result set from the SELECT to see whether it returns a single
row. (For a single-row INSERT, no warning occurs when NULL is inserted into
a NOT NULL column. Instead, the statement fails with an error.)
----
This is also true for LOAD DATA INFILE. For INSERT user can specify
DEFAULT keyword as a value to set column default. There is no similiar
feature available for LOAD DATA INFILE.
mysql-test/r/auto_increment.result:
Fixed confusing warning.
mysql-test/r/create.result:
Fixed confusing warning.
mysql-test/r/insert.result:
Fixed confusing warning.
mysql-test/r/insert_select.result:
Fixed confusing warning.
mysql-test/r/key.result:
Fixed confusing warning.
mysql-test/r/null.result:
Fixed confusing warning.
mysql-test/r/null_key.result:
Fixed confusing warning.
mysql-test/r/ps_2myisam.result:
Fixed confusing warning.
mysql-test/r/ps_3innodb.result:
Fixed confusing warning.
mysql-test/r/ps_4heap.result:
Fixed confusing warning.
mysql-test/r/ps_5merge.result:
Fixed confusing warning.
mysql-test/r/ps_6bdb.result:
Fixed confusing warning.
mysql-test/r/strict.result:
Fixed confusing warning.
mysql-test/r/view.result:
Fixed confusing warning.
mysql-test/r/warnings.result:
Fixed confusing warning.
sql/share/errmsg.txt:
Fixed confusing warning.
Fixed bug#10977: No warning issued if a column name is truncated
New warning message is added.
sql/share/errmsg.txt:
Fixed bug#10977: No warning issued if a column name is truncated
New warning message is added.
Bug #18361: Triggers on mysql.user table cause server crash
Because they do not work, we do not allow creating triggers on tables
within the 'mysql' schema.
(They may be made to work and re-enabled at some later date, but not
in 5.0 or 5.1.)
mysql-test/r/trigger.result:
Add new results
mysql-test/t/trigger.test:
Add new regression test for creating triggers on system schema
sql/share/errmsg.txt:
Add new error message
sql/sql_trigger.cc:
Disallow creating triggers on tables in the 'mysql' schema
It fact, filenames are truncated in normal server as well, just we
get bigger filenames in embedded server tests, but that can potentially
get some problems in both cases.
I modified file-related error messages to allow longer filenames
sql/share/errmsg.txt:
error messages fixed to keep longer filenames uncut
into mysql.com:/opt/local/work/mysql-5.0-runtime-merge
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/im_options_set.result:
Auto merged
mysql-test/r/im_options_unset.result:
Auto merged
mysql-test/r/trigger-grant.result:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
from within triggers
Add support for passing NEW.x as INOUT and OUT parameters to stored
procedures. Passing NEW.x as INOUT parameter requires SELECT and
UPDATE privileges on that column, and passing it as OUT parameter
requires only UPDATE privilege.
mysql-test/r/sp-error.result:
Update the result for new message.
mysql-test/r/trigger-grant.result:
Add result for bug#14635.
mysql-test/r/trigger.result:
Add result for bug#14635.
mysql-test/t/trigger-grant.test:
Add test case for bug#14635.
mysql-test/t/trigger.test:
Add test case for bug#14635.
sql/item.cc:
Add implementations of set_value() and set_required_privilege() methods
of Settable_routine_parameter interface.
Use Item_trigger_field::want_privilege instead of
Item_trigger_field::access_type.
Reset privileges on Item_trigger_field::cleanup().
sql/item.h:
Add interface class Settable_routine_parameter and interface query
method to Item class. Item_splocal and Item_trigger_field implement
this interface.
For Item_trigger_field:
- add read_only attribute and is_read_only() method.
- remove access_type and add original_privilege and want_privilege
instead.
- add set_value() method.
- add reset_privilege() method.
sql/item_func.cc:
Add implementations of set_value() method of Settable_routine_parameter
interface.
sql/item_func.h:
Item_func_get_user_var implements Settable_routine_parameter interface.
sql/share/errmsg.txt:
Update english ER_SP_NOT_VAR_ARG message.
sql/sp_head.cc:
Use Settable_routine_parameter interface for parameter update.
sql/sql_yacc.yy:
Set read_only and want_privilege members in Item_trigger_field
appropriately. For NEW.x trigger variable used in left-hand-side
of SET statement the latter is set to UPDATE_ACL, otherwise it is
set to SELECT_ACL (but see Item_trigger_field::set_required_privilege(),
where it may be updated to different value).
The SQL standard doesn't allow to use in HAVING clause fields that are not
present in GROUP BY clause and not under any aggregate function in the HAVING
clause. However, mysql allows using such fields. This extension assume that
the non-grouping fields will have the same group-wise values. Otherwise, the
result will be unpredictable. This extension allowed in strict
MODE_ONLY_FULL_GROUP_BY sql mode results in misunderstanding of HAVING
capabilities.
The new error message ER_NON_GROUPING_FIELD_USED message is added. It says
"non-grouping field '%-.64s' is used in %-.64s clause". This message is
supposed to be used for reporting errors when some field is not found in the
GROUP BY clause but have to be present there. Use cases for this message are
this bug and when a field is present in a SELECT item list not under any
aggregate function and there is GROUP BY clause present which doesn't mention
that field. It renders the ER_WRONG_FIELD_WITH_GROUP error message obsolete as
being more descriptive.
The resolve_ref_in_select_and_group() function now reports the
ER_NON_GROUPING_FIELD_FOUND error if the strict mode is set and the field for
HAVING clause is found in the SELECT item list only.
sql/share/errmsg.txt:
Added the new ER_NON_GROUPING_FIELD_USED error message for the bug#14169.
mysql-test/t/having.test:
Added test case for the bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode.
mysql-test/r/having.result:
Added test case for the bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode.
sql/sql_select.cc:
Added TODO comment to change the ER_WRONG_FIELD_WITH_GROUP to more detailed ER_NON_GROUPING_FIELD_USED message.
sql/item.cc:
Fixed bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode.
The resolve_ref_in_select_and_group() function now reports the
ER_NON_GROUPING_FIELD_FOUND error if the strict MODE_ONLY_FULL_GROUP_BY mode
is set and the field for HAVING clause is found in the SELECT item list only.
mysql-test/r/view.result:
BUG#14308 test suite.
mysql-test/t/view.test:
BUG#14308 test suite.
sql/share/errmsg.txt:
New error message about a recursive view.
sql/sql_view.cc:
The check of view recursion.
limit.
mysql-test/r/ps.result:
Post-merge fixes.
mysql-test/t/ps.test:
Post-merge fixes.
sql/share/errmsg.txt:
Add a new error message for max_prepared_stmt_count limit,
we can do it in 5.0
sql/sql_class.cc:
Post-merge fixes.
sql/sql_class.h:
Post-merge fixes.
sql/sql_prepare.cc:
Post-merge fixes.
mysql-test/r/innodb.result:
result added
mysql-test/t/innodb.test:
testcase
sql/ha_myisam.cc:
HA_CAN_RTREEKEYS added to ha_myisam
sql/handler.h:
HA_CAN_RTREEKEYS defined
sql/share/errmsg.txt:
error message added
sql/sql_table.cc:
check that the handler allows SPATIAL keys
- Update of test toolsand Makefiles to make it possible to test always test udf's as part
of the mysql test suite
mysql-test/mysql-test-run.pl:
Add the path where mysqld will udf_example.so used by the udf test
mysql-test/r/udf.result:
Update test results
mysql-test/t/udf.test:
Update tests
The "--error 0" directives should actually be changed to the correct error number returned but that error number is lost. W e do however get the right error message and that is checked in
the .result file.
sql/Makefile.am:
Build shared library udf_example.so
sql/share/errmsg.txt:
Update the max length of %s string from 64 to 128
sql/sql_udf.cc:
Add DBUG_PRINT just before dl_open
sql/udf_example.cc:
Use isalpha instade of my_isalpha
necessary implementation in the server
mysql_upgrade script added
client/mysqlcheck.c:
--check-upgrade option added
include/my_base.h:
errcode added
include/myisam.h:
option added
scripts/Makefile.am:
mysql_upgrade script added
sql/handler.cc:
checks for old types/bugs added
sql/handler.h:
declarations regarding checks for upgrade
sql/lex.h:
sym added
sql/share/errmsg.txt:
error message added
sql/slave.cc:
now ha_repair is for public use
sql/sql_table.cc:
upgrade in ha_repair implemented
sql/sql_yacc.yy:
CHECK ... FOR UPGRADE added to syntax
Check if AGGREGATE was given with a stored (non-UDF) function, and return
error in that case.
Also made udf_example/udf_test work again, by adding a missing *_init()
function. (_init() functions required unless --allow_suspicious_udfs is
given to the server, since March 2005 - it seems udf_example wasn't updated
at the time.)
mysql-test/r/sp-error.result:
Updated results for BUG#16896.
mysql-test/t/sp-error.test:
Added test case for BUG#16896.
sql/share/errmsg.txt:
New error message: ER_SP_NO_AGGREGATE
sql/sql_yacc.yy:
Check if AGGREGATE was used when creating a stored function (i.e. not an UDF).
sql/udf_example.cc:
Added myfunc_int_init() function to make it work when the server is running without
--allow_suspicious_udfs.
into mysql.com:/extern/mysql/work/bug15658/mysql-5.0
mysql-test/r/sp-error.result:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
Auto merged
reword the misleading message.
mysql-test/r/sp-error.result:
Test results fixed (Bug#15206)
mysql-test/r/sp.result:
Test results fixed (Bug#15206)
mysql-test/r/type_decimal.result:
Disable an unportable test case (Bug#7670)
mysql-test/r/variables.result:
Test results fixed (Bug#15206)
mysql-test/r/view_grant.result:
Test results fixed (Bug#15206)
mysql-test/t/type_decimal.test:
Remove an unportable (QNX) test case (Bug#7670). The test output
depends on system-specific sprintf() implementation.
The original complain was about erroneous conversion to long long,
which was applied prior to conversion to double: but the expected
behaviour can't be achieved until we have an own string -> double
conversion function.
Empty strings (and names with trailing spaces) should not be allowed.
mysql-test/r/sp-error.result:
New testcase for BUG#15658
mysql-test/t/sp-error.test:
New testcase for BUG#15658
sql/share/errmsg.txt:
New error message for bad stored routine names.
sql/sp_head.cc:
Added function for checking SP names. (Mustn't be empty or contain trailing spaces.)
sql/sp_head.h:
Added function for checking SP names.
sql/sql_yacc.yy:
Check db and name for stored routines.
latin5.xml:
- Fixing order thee Turkish letters to conform Turkish rules.
- All non-Turkish accented letters are mappend
to their non-accented counterparts.
sql/share/charsets/latin5.xml:
Bug#13421 problem with sorting turkish
Fixing order to conform the Turkish rules.
All non-Turkish accented letters are mappend to
the non-accented counterparts.
mysql-test/r/sp-error.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
SCCS merged
into mysql.com:/usr/home/pem/bug14233/mysql-5.0
mysql-test/r/sp-error.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/sp.cc:
Auto merged
sql/sp.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_trigger.h:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
SCCS merged
Post-review version. Some minor review fixes, but also changed the way
some errors are handled: Don't return specific parse errors; instead
always use the more general "table corrupt" error (amended accordingly).
mysql-test/r/sp-destruct.result:
Updated results.
mysql-test/r/sp-error.result:
Updated for fully qualified name in "no return" error message.
mysql-test/t/sp-destruct.test:
Adopted the more consistent error handling for a corrupted mysql.proc table.
(No more "parse error" et al).
sql/share/errmsg.txt:
Changed ER_SP_PROC_TABLE_CORRUPT to be more explicit.
sql/sp.cc:
Review fixes.
Changed the handling of parse errors, and added the routine name to the "table corrupt" error message.
sql/sql_base.cc:
Review changes: Change error tests and added comments.
sql/sql_parse.cc:
Mored ER_SP_NORETURN test of functions to sql_yacc.yy for more general error handling.
sql/sql_yacc.yy:
Mored ER_SP_NORETURN test of functions from sql_parse.cc for more general error handling.
Larger stack size neaded for open table on x86 64 bit
Fix failing test cases
Deleted symlink from bk
BitKeeper/etc/ignore:
added libmysqld/ha_blackhole.cc
BitKeeper/deleted/.del-ha_blackhole.cc~727c69ef7846623a:
Delete: libmysqld/ha_blackhole.cc
include/my_global.h:
Don't use PATH_MAX for FN_REFLEN as this uses too much stack space.
(With a PATH_MAX of 4096, we use 80K for opening a table as there is several objects of size FN_REFLEN on stack)
mysql-test/r/federated.result:
Update results after error message changes
mysql-test/r/grant.result:
Update results after error message changes
mysql-test/r/grant2.result:
Update results after error message changes
sql/ha_federated.cc:
Fix error messages to be more consistent
sql/mysql_priv.h:
Stack size to have when opening a table
(This was needed on x86 64 bit Linux)
sql/share/errmsg.txt:
Remove quotes around error string for federated as two quotes in the output looks strange
sql/sql_base.cc:
More correct stack size
sql/sql_parse.cc:
Set thread_stack before store_globals()
sql/unireg.h:
More correct MAX_DBKEY_LENGTH
into sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0
mysql-test/r/sp-error.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/t/sp-error.test:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
mysql-test/r/sp.result:
merge
sql/share/errmsg.txt:
merge
client/mysqltest.c:
An expected error messages hiding from the log if disable_result_log is in force.
mysql-test/r/sp-dynamic.result:
The test expanded for case of allowed/disalowed recursion.
mysql-test/r/sp-error.result:
Error messages changed.
Test of bug11394() made with allowed recursion.
mysql-test/r/sp.result:
Tests for recursion.
mysql-test/r/trigger.result:
Check that triggers are not affected by this patch.
mysql-test/r/variables.result:
Test of max_sp_recursion_depth variable.
mysql-test/t/sp-dynamic.test:
The test expanded for case of allowed/disalowed recursion.
mysql-test/t/sp-error.test:
Error messages changed.
Test of bug11394() made with allowed recursion.
mysql-test/t/sp.test:
Tests for recursion.
mysql-test/t/trigger.test:
Check that triggers are not affected by this patch.
mysql-test/t/variables.test:
Test of max_sp_recursion_depth variable.
sql/item_func.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
sql/mysqld.cc:
max_sp_recursion_depth variable added.
sql/set_var.cc:
max_sp_recursion_depth variable added.
sql/share/errmsg.txt:
An error message changed.
An error message added.
sql/sp.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
Temory LEX is allocated on a stack, not on a heap.
Recursion support added for stored procedures.
sql/sp.h:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
sql/sp_head.cc:
Initialization of new sp_head fields to get correct list of instances
contained one instance only.
Stack requirement for SP instruction is increased.
Stack free space is checked before mem root initialisation to avoid
memory leak.
Pointer to the free instance management added before and after
SP execution.
sql/sp_head.h:
New sp_head variables added to support inst of instances of SP
for recursion and pointer on ths first free to use instance.
sql/sql_base.cc:
open_table() consume a lot of stack space so we check free stack space before it.
sql/sql_class.h:
max_sp_recursion_depth variable added.
sql/sql_parse.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
