The bug caused memory corruption for some queries with top OR level
in the WHERE condition if they contained equality predicates and
other sargable predicates in disjunctive parts of the condition.
The corruption happened because the upper bound of the memory
allocated for KEY_FIELD and SARGABLE_PARAM internal structures
containing info about potential lookup keys was calculated incorrectly
in some cases. In particular it was calculated incorrectly when the
WHERE condition was an OR formula with disjuncts being AND formulas
including equalities and other sargable predicates.
mysql_ha_open calls mysql_ha_close on the error path (unsupported) to close the (opened) table before inserting it into the tables hash list handler_tables_hash) but mysql_ha_close only closes tables which are on the hash list, causing the table to be left open and locked.
This change moves the table close logic into a separate function that is always called on the error path of mysql_ha_open or on a normal handler close (mysql_ha_close).
ORDER BY is used
The range analysis module did not correctly signal to the
handler that a range represents a ref (EQ_RANGE flag). This causes
non-range queries like
SELECT ... FROM ... WHERE keypart_1=const, ..., keypart_n=const
ORDER BY ... FOR UPDATE
to wait for a lock unneccesarily if another running transaction uses
SELECT ... FOR UPDATE on the same table.
Fixed by setting EQ_RANGE for all range accesses that represent
an equality predicate.
Patch by: Monty Taylor <mtaylor@mysql.com>
Fixes by: Stewart Smith
Added the ability to run ndb_size.pl on mulitple databases and also to exclude lists of databases and tables from analysis.
---
Added schema name information to index table calculations as well.
---
Made database an optional parameter, the exclusion of which causes all databases to be examined.
If selecting from information_schema fails, attempt to fall back to show tables from
---
Added support for setting an optional "real_table_name" for a table to deal with unique indexe size calcs.
---
Fixed report title for the case where we are using operating on more than one database.
---
Fixed some perl style concerns timothy had.
Cull the list of databases in perl rather than passing both an in and a not in list to MySQL
Get this full list of databases from show databases if needed.
storage/ndb/tools/ndb_size.pl@stripped, 2007-05-25 13:45:44-07:00, mtaylor@qualinost.(none) +102 -28
Added the ability to run ndb_size.pl on mulitple databases and also to exclude lists of databases and tables from analysis.
---
Added schema name information to index table calculations as well.
---
Made database an optional parameter, the exclusion of which causes all databases to be examined.
If selecting from information_schema fails, attempt to fall back to show tables from
---
Added support for setting an optional "real_table_name" for a table to deal with unique indexe size calcs.
---
Fixed report title for the case where we are using operating on more than one database.
---
Fixed some perl style concerns timothy had.
Cull the list of databases in perl rather than passing both an in and a not in list to MySQL
Get this full list of databases from show databases if needed.
Index: ndb-work/storage/ndb/tools/ndb_size.pl
===================================================================
The cli_read_binary_rows function is used to fetch data from the server
after a prepared statement execution. It accepts a statement handler and gets
the connection handler from it. But when the auto-reconnect option is set
the connection handler is reset to NULL after reconnection because the
prepared statement is lost and the handler became useless. This case
wasn't checked in the cli_read_binary_rows function and caused server crash.
Now the cli_read_binary_rows function checks the connection handler to be
not NULL and returns an error if it is.
ChangeSet@1.2575, 2007-08-07 19:16:06+02:00, msvensson@pilot.(none) +2 -0
Bug#26793 mysqld crashes when doing specific query on information_schema
- Drop the newly created user user1@localhost
- Cleanup testcase
Rename: scripts/make_win_src_distribution.sh -> scripts/make_win_src_distribution_old.sh
Makefile.am, make_win_src_distribution_old.sh:
Rename and put in note not to be used
