- 25 Jun, 2007 3 commits
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.1-opt
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igor@olga.mysql.com authored
into olga.mysql.com:/home/igor/mysql-5.1-opt
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gshchepa/uchum@gleb.loc authored
Merge with 5.1.
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- 24 Jun, 2007 4 commits
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.1-opt
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igor@olga.mysql.com authored
into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug25602
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.0-opt
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igor@olga.mysql.com authored
the loose scan optimization for grouping queries was applied returned a wrong result set when the query was used with the SQL_BIG_RESULT option. The SQL_BIG_RESULT option forces to use sorting algorithm for grouping queries instead of employing a suitable index. The current loose scan optimization is applied only for one table queries when the suitable index is covering. It does not make sense to use sort algorithm in this case. However the create_sort_index function does not take into account the possible choice of the loose scan to implement the DISTINCT operator which makes sorting unnecessary. Moreover the current implementation of the loose scan for queries with distinct assumes that sorting will never happen. Thus in this case create_sort_index should not call the function filesort.
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- 23 Jun, 2007 5 commits
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.1-opt
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.0-opt
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.1-opt
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gshchepa/uchum@gleb.loc authored
into gleb.loc:/home/uchum/work/bk/5.0-opt
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gshchepa/uchum@gleb.loc authored
INSERT into table from SELECT from the same table with ORDER BY and LIMIT was inserting other data than sole SELECT ... ORDER BY ... LIMIT returns. One part of the patch for bug #9676 improperly pushed LIMIT to temporary table in the presence of the ORDER BY clause. That part has been removed.
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- 22 Jun, 2007 20 commits
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joerg@trift2. authored
into trift2.:/MySQL/M51/push-5.1
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joerg@trift2. authored
into trift2.:/MySQL/M51/push-5.1
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joerg@trift2. authored
into trift2.:/MySQL/M50/push-5.0
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joerg@trift2. authored
into trift2.:/MySQL/M51/push-5.1
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/51
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joerg@trift2. authored
to be run only if it is available on the machine.
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gkodinov/kgeorge@magare.gmz authored
into magare.gmz:/home/kgeorge/mysql/autopush/B28400-5.0-opt
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gkodinov/kgeorge@magare.gmz authored
The C optimizer may decide that data access operations through pointer of different type are not related to the original data (strict aliasing). This is what happens in fetch_long_with_conversion(), when called as part of mysql_stmt_fetch() : it tries to check for truncation errors by first storing float (and other types of data) into a char * buffer and then accesses them through a float pointer. This is done to prevent the effects of excess precision when using FPU registers. However the doublestore() macro converts a double pointer to an union pointer. This violates the strict aliasing rule. Fixed by making the intermediary variables volatile ( to not re-introduce the excess precision bug) and using the intermediary value instead of the char * buffer. Note that there can be loss of precision for both signed and unsigned 64 bit integers converted to double and back, so the check must stay there (even for compatibility reasons). Based on the excellent analysis in bug 28400.
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joerg@trift2. authored
into trift2.:/MySQL/M51/push-5.1
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joerg@trift2. authored
into trift2.:/MySQL/M51/push-5.1
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joerg@trift2. authored
into trift2.:/MySQL/M50/push-5.0
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/51
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/50
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tsmith@maint1.mysql.com authored
post-merge fix
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holyfoot/hf@hfmain.(none) authored
into mysql.com:/home/hf/work/28839/my50-28839
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holyfoot/hf@mysql.com/hfmain.(none) authored
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holyfoot/hf@hfmain.(none) authored
into mysql.com:/home/hf/work/28839/my51-28839
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holyfoot/hf@mysql.com/hfmain.(none) authored
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dkatz@damien-katzs-computer.local authored
into damien-katzs-computer.local:/Users/dkatz/mysql51
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dkatz@damien-katzs-computer.local authored
The reason the "reap;" succeeds unexpectedly is because the query was completing(almost always) and the network buffer was big enough to store the query result (sometimes) on Windows, meaning the response was completely sent before the server thread could be killed. Therefore we use a much longer running query that doesn't have a chance to fully complete before the reap happens, testing the kill properly.
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- 21 Jun, 2007 8 commits
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/51
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igor@olga.mysql.com authored
into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug29104
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/51
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/51
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/50
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/50
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tsmith@maint1.mysql.com authored
into maint1.mysql.com:/data/localhome/tsmith/bk/maint/41
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