- 09 May, 2006 2 commits
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dlenev@mysql.com authored
into mysql.com:/home/dlenev/mysql-5.0-bg12472
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dlenev@mysql.com authored
or implicitly uses stored function gives "Table not locked" error' CREATE TABLE ... SELECT ... statement which was explicitly or implicitly (through view) using stored function gave "Table not locked" error. The actual bug resides in the current locking scheme of CREATE TABLE SELECT code, which first opens and locks tables of the SELECT statement itself, and then, having SELECT tables locked, creates the .FRM, opens the .FRM and acquires lock on it. This scheme opens a possibility for a deadlock, which was present and ignored since version 3.23 or earlier. This scheme also conflicts with the invariant of the prelocking algorithm -- no table can be open and locked while there are tables locked in prelocked mode. The patch makes an exception for this invariant when doing CREATE TABLE ... SELECT, thus extending the possibility of a deadlock to the prelocked mode. We can't supply a better fix in 5.0.
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- 06 May, 2006 2 commits
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dlenev@mysql.com authored
hog memory". During each invocation of stored function or trigger some objects which lifetime is one function call (e.g. sp_rcontext) were allocated on arena/memroot of calling statement. This led to consumption of fixed amount of memory for each function/trigger invocation and so statements which involve lot of them were hogging memory. This in its return led to OOM crashes or freezes. This fix introduces new memroot and arena for objects which lifetime is whole duration of function call. So all memory consumed by such objects is freed at the end of function call.
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kroki@mysql.com authored
random test failures.
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- 04 May, 2006 2 commits
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kroki@mysql.com authored
into mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug6951
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kroki@mysql.com authored
into mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug6951
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- 03 May, 2006 1 commit
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kroki@mysql.com authored
There were two distict bugs: parse error was returned for valid statement and that error wasn't reported to the client. The fix ensures that EXPLAIN SELECT..INTO is accepted by parser and any other parse error will be reported to the client.
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- 02 May, 2006 6 commits
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dlenev@mysql.com authored
into mysql.com:/home/dlenev/mysql-5.0-bg11081
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knielsen@mysql.com authored
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holyfoot@mysql.com authored
into mysql.com:/home/hf/work/mysql-5.0.clean
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holyfoot@deer.(none) authored
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cmiller@zippy.(none) authored
into zippy.(none):/home/cmiller/work/mysql/mysql-5.0__bug17667
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cmiller@zippy.(none) authored
Bug#17667: An attacker has the opportunity to bypass query logging. This adds a new, local-only printf format specifier to our *printf functions that allows us to print known-size buffers that must not be interpreted as NUL-terminated "strings." It uses this format-specifier to print to the log, thus fixing this problem.
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- 01 May, 2006 9 commits
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kent@mysql.com authored
into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new
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kent@mysql.com authored
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jimw@mysql.com authored
into mysql.com:/home/jimw/my/mysql-5.0-clean
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kent@mysql.com authored
Use "./libtool --mode=execute" to find real path to executables
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holyfoot@mysql.com authored
into mysql.com:/home/hf/work/mysql-5.0.clean
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holyfoot@deer.(none) authored
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jimw@mysql.com authored
into mysql.com:/home/jimw/my/mysql-5.0-clean
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jimw@mysql.com authored
into mysql.com:/home/jimw/my/mysql-5.0-clean
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cmiller@zippy.(none) authored
into zippy.(none):/home/cmiller/work/mysql/merge/mysql-5.0
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- 29 Apr, 2006 3 commits
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kent@mysql.com authored
into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new
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kent@mysql.com authored
Fix strange "double" define for popen. Avoid warnings about sprintf() etc. being unsafe. Corrected typo "#endfif"
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kent@mysql.com authored
Changed version to 4.1.20
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- 28 Apr, 2006 15 commits
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kent@mysql.com authored
Backport of changes in 5.0 (bug#18294)
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kent@mysql.com authored
into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new
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elliot@mysql.com authored
Now test for NULLness the pointers returned from objects created from the default value. Pushing patch on behalf of cmiller.
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msvensson@devsrv-b.mysql.com authored
into devsrv-b.mysql.com:/users/msvensson/mysql-5.0
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kent@mysql.com authored
into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new
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kent@mysql.com authored
Include and run mysql_upgrade if needed (bug#19353)
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kent@mysql.com authored
into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new
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msvensson@devsrv-b.mysql.com authored
into devsrv-b.mysql.com:/users/msvensson/mysql-5.0
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msvensson@devsrv-b.mysql.com authored
into devsrv-b.mysql.com:/users/msvensson/mysql-4.1
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msvensson@neptunus.(none) authored
- Eval shrext_cmds variable before using it - Moved from acinclude.m4 to openssl.m4 and zlib.m4 when merging 4.1 -> 5.0
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msvensson@neptunus.(none) authored
into neptunus.(none):/home/msvensson/mysql/mysql-5.0
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msvensson@devsrv-b.mysql.com authored
into devsrv-b.mysql.com:/users/msvensson/mysql-4.1
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gkodinov@lsmy3.wdf.sap.corp authored
into lsmy3.wdf.sap.corp:/data/users/gkodinov/mysql-5.0-B18492
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gkodinov@lsmy3.wdf.sap.corp authored
In the code that converts IN predicates to EXISTS predicates it is changing the select list elements to constant 1. Example : SELECT ... FROM ... WHERE a IN (SELECT c FROM ...) is transformed to : SELECT ... FROM ... WHERE EXISTS (SELECT 1 FROM ... HAVING a = c) However there can be no FROM clause in the IN subquery and it may not be a simple select : SELECT ... FROM ... WHERE a IN (SELECT f(..) AS c UNION SELECT ...) This query is transformed to : SELECT ... FROM ... WHERE EXISTS (SELECT 1 FROM (SELECT f(..) AS c UNION SELECT ...) x HAVING a = c) In the above query c in the HAVING clause is made to be an Item_null_helper (a subclass of Item_ref) pointing to the real Item_field (which is not referenced anywhere else in the query anymore). This is done because Item_ref_null_helper collects information whether there are NULL values in the result. This is OK for directly executed statements, because the Item_field pointed by the Item_null_helper is already fixed when the transformation is done. But when executed as a prepared statement all the Item instances are "un-fixed" before the recompilation of the prepared statement. So when the Item_null_helper gets fixed it discovers that the Item_field it points to is not fixed and issues an error. The remedy is to keep the original select list references when there are no tables in the FROM clause. So the above becomes : SELECT ... FROM ... WHERE EXISTS (SELECT c FROM (SELECT f(..) AS c UNION SELECT ...) x HAVING a = c) In this way c is referenced directly in the select list as well as by reference in the HAVING clause. So it gets correctly fixed even with prepared statements. And since the Item_null_helper subclass of Item_ref_null_helper is not used anywhere else it's taken out.
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msvensson@neptunus.(none) authored
into neptunus.(none):/home/msvensson/mysql/mysql-5.0
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