into dl145s.mysql.com:/data0/bk/team_tree_merge/MERGE/mysql-5.0-opt
libmysql/libmysql.c:
Auto merged
mysql-test/t/subselect.test:
Auto merged
mysql-test/t/type_newdecimal.test:
Auto merged
sql/filesort.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql-common/client.c:
Auto merged
sql/sql_select.cc:
Auto merged
sql/table.cc:
Auto merged
sql-common/my_time.c:
Auto merged
strings/decimal.c:
Auto merged
If a view was created with the DEFINER security and later the definer user
was dropped then a SELECT from the view throws the error message saying that
there is no definer user is registered. This is ok for a root but too much
for a mere user.
Now the st_table_list::prepare_view_securety_context() function reveals
the absence of the definer only to a superuser and throws the 'access denied'
error to others.
mysql-test/t/view_grant.test:
Added a test case for bug#17254: Error for DEFINER security on VIEW provides too much info
mysql-test/r/view_grant.result:
Added a test case for bug#17254: Error for DEFINER security on VIEW provides too much info
sql/table.cc:
Bug#17254: Error for DEFINER security on VIEW provides too much info
Now the st_table_list::prepare_view_securety_context() function reveals
the absence of the definer only to a superuser and throws the 'access denied'
error to others.
into neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint
mysql-test/Makefile.am:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/t/func_time.test:
Auto merged
sql-common/my_time.c:
Auto merged
sql/item_timefunc.cc:
Auto merged
mysql-test/mysql-test-run-shell.sh:
Auto merged
mysql-test/mysql-test-run.pl:
Manual merge of changes for RPM
fails randomly.
The problem was that the test case used command line tool (mysql)
without specifying connect_timeout argument. In some cases,
this lead to hanging of the test case.
The fix is to specify --connect_timeout=1 when starting mysql.
Also, the patch contains polishing and various cleanups to simplify
analyzing of the problems further.
The patch affects only test suite, no server codebase has been
touched.
mysql-test/lib/mtr_im.pl:
Remember PID of the IM-spawner -- a process, that is
used to fork IM-angel.
mysql-test/lib/mtr_io.pl:
Trim \n from the PID.
mysql-test/lib/mtr_process.pl:
Don't complain if it was IM-spawner, who died.
mysql-test/r/im_daemon_life_cycle.result:
Update the result file.
mysql-test/r/im_life_cycle.result:
Update the result file.
mysql-test/t/im_daemon_life_cycle.imtest:
Polishing: add more comments, be more verbose.
mysql-test/t/im_life_cycle.imtest:
Polishing: be more verbose.
mysql-test/t/im_utils.imtest:
Polishing: be more verbose.
mysql-test/t/kill_n_check.sh:
Log messages to the extrenal file so that they can be analyzed
if test case failed.
mysql-test/t/wait_for_process.sh:
Log messages to the extrenal file so that they can be analyzed
if test case failed.
mysql-test/t/wait_for_socket.sh:
Log messages to the extrenal file so that they can be analyzed
if test case failed.
mysql-test/t/log.sh:
Dummy script to facilitate logging from test-scripts.
mysql-test/t/utils.sh:
A bunch of auxilary functions to facilitate logging.
Load shared libraries from zlib (fixed that mysql-test-run.pl didn't work on some Solaris boxes)
Added connect timeout to test to make im_daemon_life_cycle more predictable
mysql-test/mysql-test-run.pl:
Added option --mtr-build-thread
Load shared libraries from zlib (fixed that mysql-test-run.pl didn't work on some Solaris boxes)
mysql-test/t/wait_for_socket.sh:
Added connect timeout (to make test predictable)
into mysql.com:/usr/home/ram/work/bug22029/my41-bug22029
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_timefunc.cc:
Auto merged
into mysql.com:/usr/home/ram/work/bug22029/my50-bug22029
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_timefunc.cc:
Auto merged
- Use more appropriate test case.
mysql-test/r/mysql.result:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- Alt. Result.
mysql-test/t/mysql_delimiter.sql:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- Alt. Test
into mysql.com:/usr/home/ram/work/bug22029/my50-bug22029
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_timefunc.cc:
merging
- Client side readline functions unconditionally search for Unix '\n' line
endings. In this case, the delimiter statement was set to '//\r' instead
of the intended '//'. When removing the '\n' check for and remove
preceeding '\r' character as well.
client/readline.cc:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- When removing the '\n' character, check for and remove preceeding '\r'
character as well.
mysql-test/r/mysql.result:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- Added Results.
mysql-test/t/mysql_delimiter.sql:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- Added Tests.
mysql-test/t/mysql_delimiter_19799.sql:
Bug#19799 delimiter command not working correctly when sourcing a sql file
- File containing delimiter statement followed by '\r\n' line ending.
mysql_fix_privilege_tables.s's ability to convert the system tables as of
3.20 to current system table format
Add similar test for 4.1.23 tables - but use "mysql < mysql_fix_privilege_tables.sql"
so it can be run on any platform.
mysql-test/t/system_mysql_db_fix30020-master.opt:
Rename: mysql-test/t/system_mysql_db_fix-master.opt -> mysql-test/t/system_mysql_db_fix30020-master.opt
mysql-test/mysql-test-run.pl:
Find mysql_fix_privilege_tables.sql and assign it's path and name to $MYSQL_FIX_PRIVILEGE_TABLES
mysql-test/t/system_mysql_db_fix30020.test:
Send output to var/log/system_mysql_db_fix30020.err
Add some more comments
mysql-test/t/system_mysql_db_fix40123-master.opt:
New BitKeeper file ``mysql-test/t/system_mysql_db_fix40123-master.opt''
mysql-test/t/system_mysql_db_fix40123.test:
New BitKeeper file ``mysql-test/t/system_mysql_db_fix40123.test''
mysql-test/r/ps.result:
Fix after manual merge: update for different error message.
mysql-test/t/ps.test:
Fix after manual merge: use right error codes.
Make Prepared_stmt_count a global status variable, accessible via
SHOW STATUS LIKE 'Prepared_stmt_count';. Documentation should be
updated.
mysql-test/r/ps.result:
Update result for bug#16365: Prepared Statements: DoS with too many
open statements, according to bug#23159: prepared_stmt_count should be
status variable.
mysql-test/t/ps.test:
Update test case for bug#16365: Prepared Statements: DoS with too many
open statements, according to bug#23159: prepared_stmt_count should be
status variable.
sql/mysqld.cc:
Add Prepared_stmt_count as global status variable.
sql/set_var.cc:
Remove prepared_stmt_count as system variable.
disable filling of I_S tables for EXPLAIN
mysql-test/r/information_schema.result:
Bug#22413 EXPLAIN SELECT FROM view with ORDER BY yield server crash
test case
mysql-test/t/information_schema.test:
Bug#22413 EXPLAIN SELECT FROM view with ORDER BY yield server crash
test case
This is the 5.0 part of the fix.
Currently TRUNCATE command will not call
delete_all_rows() in the handler (that implements
the "fast" TRUNCATE for InnoDB) when there are
triggers on the table.
As decided by the architecture team TRUNCATE must
use "fast" TRUNCATE even when there are triggers.
Thus it must ignore the triggers.
Made TRUNCATE to ignore the triggers and call
delete_all_rows() for all storage engines
to maintain engine consistency.
mysql-test/r/trigger.result:
Bug#23556: TRUNCATE TABLE still maps to DELETE
- test case
mysql-test/t/trigger.test:
Bug#23556: TRUNCATE TABLE still maps to DELETE
- test case
sql/sql_delete.cc:
Bug#23556: TRUNCATE TABLE still maps to DELETE
- We implemenent fast TRUNCATE for InnoDB even
if triggers are present.
- TRUNCATE ignores triggers.
into mysql.com:/home/my/mysql-5.0
mysql-test/t/ctype_ucs.test:
Auto merged
sql/log_event.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_repl.cc:
Auto merged
sql/sql_select.cc:
Auto merged
Do not issue a 'read-only' error in case of DROP TEMPORARY TABLE on a non-existing temporary table.
Instead produce the correct "Unknown table" error or warning (in cases when the IF EXISTS clause was specified).
To a documentor: the part of the manual describing the 'read_only' system variable should be clarified to state the following:
"When the read_only variable is set to ON, all operations which create/update/drop tables are rejected with the exceptions for:
1. Any operation performed by the replication thread on a slave server
2. Any operation performed by a user that have the SUPER privilege
3. Any operation that creates/updates/drops only temporary tables"
mysql-test/r/read_only.result:
Added testcases for bug #22077 "DROP TEMPORARY TABLE fails with wrong error if read_only is set"
mysql-test/t/read_only.test:
Added testcases for bug #22077 "DROP TEMPORARY TABLE fails with wrong error if read_only is set"
sql/sql_parse.cc:
Before issuing the 'read-only' error also check if the operation is not a DROP TEMPORARY TABLE statement
into mysql.com:/usr/home/bar/mysql-5.0.b22646
mysql-test/t/ctype_utf8.test:
Auto merged
mysql-test/r/ctype_utf8.result:
After merge fix
sql/item_timefunc.cc:
After merge fix
limitation)
Note to the reviewer
====================
Warning: reviewing this patch is somewhat involved.
Due to the nature of several issues all affecting the same area,
fixing separately each issue is not practical, since each fix can not be
implemented and tested independently.
In particular, the issues with
- rule recursion
- nested case statements
- forward jump resolution (backpatch list)
are tightly coupled (see below).
Definitions
===========
The expression
CASE expr
WHEN expr THEN expr
WHEN expr THEN expr
...
END
is a "Simple Case Expression".
The expression
CASE
WHEN expr THEN expr
WHEN expr THEN expr
...
END
is a "Searched Case Expression".
The statement
CASE expr
WHEN expr THEN stmts
WHEN expr THEN stmts
...
END CASE
is a "Simple Case Statement".
The statement
CASE
WHEN expr THEN stmts
WHEN expr THEN stmts
...
END CASE
is a "Searched Case Statement".
A "Left Recursive" rule is like
list:
element
| list element
;
A "Right Recursive" rule is like
list:
element
| element list
;
Left and right recursion produces the same language, the difference only
affects the *order* in which the text is parsed.
In a descendant parser (usually written manually), right recursion works
very well, and is typically implemented with a while loop.
In an ascendant parser (yacc/bison) left recursion works very well,
and is implemented naturally by the parser stack.
In both cases, using the wrong type or recursion is very bad and should be
avoided, as it causes technical issues with the parser implementation.
Before this change
==================
The "Simple Case Expression" and "Searched Case Expression" were both
implemented by the "when_list" and "when_list2" rules, which are left
recursive (ok).
These rules, however, used lex->when_list instead of using the parser stack,
which is more complex that necessary, and potentially dangerous because
of other rules using THD::reset_lex.
The "Simple Case Statement" and "Searched Case Statements" were implemented
by the "sp_case", "sp_whens" and in part by "sp_proc_stmt" rules.
Both cases were right recursive (bad).
The grammar involved was convoluted, and is assumed to be the results of
tweaks to get the code generation to work, but is not what someone would
naturally write.
In addition, using a common rule for both "Simple" and "Searched" case
statements was implemented with sp_head::m_flags |= IN_SIMPLE_CASE,
which is a flag and not a stack, and therefore does not take into account
*nested* case statements. This leads to incorrect generated code, and either
a server crash or an incorrect result.
With regards to the backpatch mechanism, a *different* backpatch list was
created for each jump from "WHEN expr THEN stmt" to "END CASE", which
relied on the grammar to be right recursive.
This is a mis-use of the backpatch list, since this list can resolve
multiple references to the same target at once.
The optimizer algorithm used to detect dead code in the "assembly" SQL
instructions, implemented by sp_head::opt_mark(uint ip), was recursive
in some cases (a conditional jump pointing forward to another conditional
jump).
In case of specially crafted code, like
- a long list of "IF expr THEN stmt END IF"
- a long CASE statement
this would actually cause a server crash with a stack overflow.
In general, having a stack that grows proportionally with user data (the
SQL code given by the client in a CREATE PROCEDURE) is to be avoided.
In debug builds only, creating a SP / SF / Trigger which had a significant
amount of code would spend --literally-- several minutes in sp_head::create,
because of the debug code involved with DBUG_PRINT("info", ("Code %s ...
There are several issues with this code:
- in a CASE with 5 000 WHEN, there are 15 000 instructions generated,
which create a sting representation of the code which is 500 000 bytes
long,
- using a String instead of an io stream causes performances to degrade
to a total server freeze, as time is spent doing realloc of a buffer
always too short,
- Printing a 500 000 long string in the debug log is too verbose,
- Generating this string even when DBUG_PRINT is off is useless,
- Having code that potentially can affect the server behavior, used with
#ifdef / #endif is useful in some cases, but is also a bad practice.
After this change
=================
"Case Expressions" (both simple and searched) have been simplified to
not use LEX::when_list, which has been removed.
Considering all the issues affecting case statements, the grammar for these
has been totally re written.
The existing actions, used to generate "assembly" sp_inst* code, have been
preserved but moved in the new grammar, with the following changes:
a) Bison rules are no longer shared between "Simple" and "Searched" case
statements, because a stack instead of a flag is required to handle them.
Nested statements are handled naturally by the parser stack, which by
definition uses the correct rule in the correct context.
Nested statements of the opposite type (simple vs searched) works correctly.
The flag sp_head::IN_SIMPLE_CASE is no longer used.
This is a step towards resolution of WL#2999, which correctly identified
that temporary parsing flags do not belong to sp_head.
The code in the action is shared by mean of the case_stmt_action_xxx()
helpers.
b) The backpatch mechanism, used to resolve forward jumps in the generated
code, has been changed to:
- create a label for the instruction following 'END CASE',
- register each jump at the end of a "WHEN expr THEN stmt" in a *unique*
backpatch list associated with the 'END CASE' label
- resolve all the forward jumps for this label at once.
In addition, the code involving backpatch has been commented, so that a
reader can now understand by reading matching "Registering" and "Resolving"
comments how the forward jumps are resolved and what target they resolve to,
as this is far from evident when reading the code alone.
The implementation of sp_head::opt_mark() has been revised to avoid
recursive calls from jump instructions, and instead add the jump location
to the list of paths to explore during the flow analysis of the instruction
graph, with a call to sp_head::add_mark_lead().
In addition, the flow analysis will stop if an instruction has already
been marked as reachable, which the previous code failed to do in the
recursive case.
sp_head::opt_mark() is now private, to prevent new calls to this method from
being introduced.
The debug code present in sp_head::create() has been removed.
Considering that SHOW PROCEDURE CODE is also available in debug builds,
and can be used anytime regardless of the trace level, as opposed to
"CREATE PROCEDURE" time and only if the trace was on,
removing the code actually makes debugging easier (usable trace).
Tests have been written to cover the parser overflow (big CASE),
and to cover nested CASE statements.
mysql-test/r/sp-code.result:
Test cases for nested CASE statements.
mysql-test/t/sp-code.test:
Test cases for nested CASE statements.
sql/sp_head.cc:
Re factored opt_mark() to avoid recursion, clean up.
sql/sp_head.h:
Re factored opt_mark() to avoid recursion, clean up.
sql/sql_lex.cc:
Removed when_list.
sql/sql_lex.h:
Removed when_list.
sql/sql_yacc.yy:
Minor clean up for case expressions,
Major re write for case statements (Bug#19194).
mysql-test/r/sp_stress_case.result:
New test for massive CASE statements.
mysql-test/t/sp_stress_case.sh:
New test for massive CASE statements.
mysql-test/t/sp_stress_case.test:
New test for massive CASE statements.
into mysql.com:/home/hf/work/mysql-5.0-0mrg
BitKeeper/deleted/.del-mysql_client.test:
Auto merged
include/mysql.h:
Auto merged
libmysqld/lib_sql.cc:
Auto merged
mysql-test/r/order_by.result:
Auto merged
mysql-test/r/query_cache.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/type_newdecimal.result:
Auto merged
mysql-test/t/flush.test:
Auto merged
mysql-test/t/flush_block_commit.test:
Auto merged
mysql-test/t/innodb-deadlock.test:
Auto merged
mysql-test/t/innodb-lock.test:
Auto merged
mysql-test/t/lock_multi.test:
Auto merged
mysql-test/t/mysql.test:
Auto merged
mysql-test/t/query_cache.test:
Auto merged
mysql-test/t/rename.test:
Auto merged
mysql-test/t/show_check.test:
Auto merged
mysql-test/t/status.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
mysql-test/t/type_newdecimal.test:
Auto merged
sql/field.cc:
Auto merged
sql/field.h:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_subselect.h:
Auto merged
sql/item_sum.cc:
Auto merged
sql/item_sum.h:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/item_timefunc.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/protocol.cc:
Auto merged
sql/protocol.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
sql-common/client.c:
Auto merged
sql-common/my_time.c:
Auto merged
Makefile.am:
merging
client/mysqltest.c:
merging
include/my_time.h:
merging
libmysql/libmysql.c:
merging
mysql-test/t/order_by.test:
merging
into mysql.com:/home/hf/work/mysql-4.1-mrg
include/mysql.h:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/rename.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql-common/client.c:
Auto merged
sql/sql_class.h:
Auto merged
Makefile.am:
merging
client/mysqltest.c:
merging
mysql-test/t/mysql_client.test:
merging
There was an improper order of doing chained operations.
To the documentor: ENABLE|DISABLE KEYS combined with RENAME TO, and no other
ALTER TABLE clause, leads to server crash independent of the presence of
indices and data in the table.
mysql-test/r/alter_table.result:
update result
mysql-test/t/alter_table.test:
add test for bug#24129
sql/sql_table.cc:
If there is operation on the KEYS, first do it
and then do a rename if there is such. Or, we will crash because
the underlying table has changed.
into mysql.com:/usr/home/ram/work/bug23653/my50-bug23653
mysql-test/r/func_time.result:
Auto merged
mysql-test/t/func_time.test:
Auto merged
sql/item_timefunc.cc:
Auto merged
mysql-test/r/func_str.result:
Add result for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
mysql-test/t/func_str.test:
Add test case for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
sql/item_strfunc.cc:
Add Item_str_func::fix_fields() implementation, and set maybe_null to
TRUE if we are in the SQL mode that requires some functions to return
null even if they normally do not.
sql/item_strfunc.h:
Add declaration of Item_str_func::fix_fields().
Do not reset maybe_null in Item_func_char::fix_length_and_dec().
The problem was that some functions (namely IN() starting with 4.1, and
CHAR() starting with 5.0) were returning NULL in certain conditions,
while they didn't set their maybe_null flag. Because of that there could
be some problems with 'IS NULL' check, and statements that depend on the
function value domain, like CREATE TABLE t1 SELECT 1 IN (2, NULL);.
The fix is to set maybe_null correctly.
mysql-test/r/func_in.result:
Add result for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
mysql-test/t/func_in.test:
Add test case for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
sql/item_cmpfunc.cc:
Remove assignment to maybe_null, as it was already set in fix_fields()
based on all arguments, not only on the first.
- Added 'SET NAMES <charset>" upon ::open
- Added test and results for simple UTF test
federated.test:
BUG #17044 Federated Storage Engine not UTF8 clean
New test. Using hex - pasting various charsets in the terminal doesn't work.
federated.result:
BUG# 17044 Federated Storage Engine not UTF8 clean
New test results
ha_federated.cc:
BUG# 17044 Federated Storage Engine not UTF8 clean
Upon ::open, set names to table's charset
sql/ha_federated.cc:
BUG# 17044 Federated Storage Engine not UTF8 clean
Upon ::open, set names to table's charset
mysql-test/t/federated.test:
BUG #17044 Federated Storage Engine not UTF8 clean
New test. Using hex - pasting various charsets in the terminal doesn't work.
federated.result:
BUG# 17044 Federated Storage Engine not UTF8 clean
New test results
mysql-test/r/federated.result:
BUG# 17044 Federated Storage Engine not UTF8 clean
New test results
Problem: When we have a really large number (between 2^63 and 2^64)
as the left side of the mod operator, it gets improperly corerced
into a signed value.
Solution: Added check to see if the "negative" number is really
positive, and if so, cast it.
mysql-test/r/bigint.result:
Added test case result
mysql-test/t/bigint.test:
Added test case
sql/item_func.cc:
Added check to see if we have an unsigned number that looks like a
signed number.
mending windows test.
mysql-test/r/rpl_packet.result:
results changed
mysql-test/t/rpl_packet.test:
removing because of the connection with windows client can be lost instead of
the error code back (source: manual).
