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Introduce thd->query_cache_tls (thread

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local storage for query cache). 
We need more than one pointer in a thread to
represent the query cache and net->query_cache_query can not be used
any more (due to ABI compatibility issues and to different life
time of NET and THD).
This is a backport of the following patch from 6.0:
----------------------------------------------------------
revno: 2476.1157.2
committer: kostja@bodhi.(none)
timestamp: Sat 2007-06-16 13:29:24 +0400
This commit is contained in:
Konstantin Osipov
2009-10-13 22:18:48 +04:00
parent 10390cec03
commit ea6a22bfa8
10 changed files with 141 additions and 102 deletions
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2
sql/sql_parse.cc
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@@ -6026,7 +6026,7 @@ void mysql_parse(THD *thd, const char *inBuf, uint length,
DBUG_PRINT("info",("Command aborted. Fatal_error: %d",
thd->is_fatal_error));
query_cache_abort(&thd->net);
query_cache_abort(&thd->query_cache_tls);
}
if (thd->lex->sphead)
{