- 26 Jun, 2006 2 commits
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ingo@mysql.com authored
into mysql.com:/home/mydev/mysql-5.0-bug16986-main
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ingo@mysql.com authored
Addendum fixes after changing the condition variable for the global read lock. The stress test suite revealed some deadlocks. Some were related to the new condition variable (COND_global_read_lock) and some were general problems with the global read lock. It is now necessary to signal COND_global_read_lock whenever COND_refresh is signalled. We need to wait for the release of a global read lock if one is set before every operation that requires a write lock. But we must not wait if we have locked tables by LOCK TABLES. After setting a global read lock a thread waits until all write locks are released.
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- 24 Jun, 2006 2 commits
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knielsen@mysql.com authored
into mysql.com:/data0/knielsen/tmp-5.0
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knielsen@mysql.com authored
Sometimes the helper connection (that is watching for the main connection to time out) would itself time out first, causing the test to fail.
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- 23 Jun, 2006 4 commits
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evgen@moonbone.local authored
After merge fix
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
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bar@mysql.com authored
An UNIQUE KEY consisting of NOT NULL columns was displayed as PRIMARY KEY in "DESC t1". According to the code, that was intentional behaviour for some reasons unknown to me. This code was written before bitkeeper time, so I cannot check who and why made this. After discussing on dev-public, a decision was made to remove this code
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- 22 Jun, 2006 9 commits
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kent@mysql.com authored
Disable the simplistic auto dependency scan for test/bench (bug#20078)
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konstantin@mysql.com authored
into mysql.com:/opt/local/work/mysql-5.0-runtime
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pekka@clam.ndb.mysql.com authored
into clam.ndb.mysql.com:/space/pekka/ndb/version/my50-bug18781
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kroki@mysql.com authored
into mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug15811
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konstantin@mysql.com authored
into mysql.com:/opt/local/work/mysql-5.0-runtime
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kroki@mysql.com authored
into mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug15811
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konstantin@mysql.com authored
with PREPARE fails with weird error". More generally, re-executing a stored procedure with a complex SP cursor query could lead to a crash. The cause of the problem was that SP cursor queries were not optimized properly at first execution: their parse tree belongs to sp_instr_cpush, not sp_instr_copen, and thus the tree was tagged "EXECUTED" when the cursor was declared, not when it was opened. This led to loss of optimization transformations performed at first execution, as sp_instr_copen saw that the query is already "EXECUTED" and therefore either not ran first-execution related blocks or wrongly rolled back the transformations caused by first-execution code. The fix is to update the state of the parsed tree only when the tree is executed, as opposed to when the instruction containing the tree is executed. Assignment if i->state is moved to reset_lex_and_exec_core.
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kroki@mysql.com authored
The problem was in redundant calls to strlen() in string functions, where we may then return after checking only the small number of characters. No test case is provided since it's a performance fix.
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
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- 21 Jun, 2006 23 commits
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
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into a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0
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evgen@moonbone.local authored
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
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evgen@moonbone.local authored
into moonbone.local:/work/tmp_merge-4.1-opt-mysql
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evgen@moonbone.local authored
This bug in Field_string::cmp resulted in a wrong comparison with keys in partial indexes over multi-byte character fields. Given field a is declared as a varchar(16) collate utf8_unicode_ci INDEX(a(4)) gives us an example of such an index. Wrong key comparisons could lead to wrong result sets if the selected query execution plan used a range scan by a partial index over a utf8 character field. This also caused wrong results in many other cases.
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mats@mysql.com authored
into mysql.com:/home/bk/fix-mysql-5.0
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into a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0
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bk://localhost:5559
into a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0
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jani@ua141d10.elisa.omakaista.fi authored
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svoj@may.pils.ru authored
into may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-5.0
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svoj@may.pils.ru authored
into may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1
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tomas@poseidon.ndb.mysql.com authored
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into a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0
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svoj@may.pils.ru authored
into may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1
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svoj@may.pils.ru authored
functions in queries Using MAX()/MIN() on table with disabled indexes (by ALTER TABLE) results in error 124 (wrong index) from storage engine. The problem was that optimizer use disabled index to optimize MAX()/MIN(). Normally it must skip disabled index and perform table scan. This patch skips disabled indexes for min/max optimization.
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into a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0
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knielsen@mysql.com authored
into mysql.com:/data0/knielsen/mysql-5.0
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knielsen@mysql.com authored
Backport Valgrind suppression from mysql-5.1: D 1.4 05/11/23 22:44:54+02:00 monty@mysql.com 5 4 12/0/154 P mysql-test/valgrind.supp C Remove warning that may happens becasue threads dies in different order
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joerg@mysql.com authored
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gkodinov@mysql.com authored
into mysql.com:/home/kgeorge/mysql/5.0/B18080
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mskold@mysql.com authored
into mysql.com:/home/marty/MySQL/mysql-5.0
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tomas@poseidon.ndb.mysql.com authored
into poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main
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