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Merge moonbone.local:/work/15028-bug-5.0-mysql

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into moonbone.local:/work/15028-bug-5.1-new-mysql
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evgen@moonbone.local
2005-12-02 22:07:10 +03:00
parent e7a7af07b2 70abb812fb
commit f2559fbcc3
7 changed files with 111 additions and 25 deletions
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39
sql/sql_cache.cc
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@ -977,21 +977,32 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
goto err;
}
/*
Test if the query is a SELECT
(pre-space is removed in dispatch_command).
First '/' looks like comment before command it is not
frequently appeared in real lihe, consequently we can
check all such queries, too.
*/
if ((my_toupper(system_charset_info, sql[0]) != 'S' ||
my_toupper(system_charset_info, sql[1]) != 'E' ||
my_toupper(system_charset_info,sql[2]) !='L') &&
sql[0] != '/')
{
DBUG_PRINT("qcache", ("The statement is not a SELECT; Not cached"));
goto err;
uint i= 0;
/*
Skip '(' characters in queries like following:
(select a from t1) union (select a from t1);
*/
while (sql[i]=='(')
i++;
/*
Test if the query is a SELECT
(pre-space is removed in dispatch_command).
First '/' looks like comment before command it is not
frequently appeared in real lihe, consequently we can
check all such queries, too.
*/
if ((my_toupper(system_charset_info, sql[i]) != 'S' ||
my_toupper(system_charset_info, sql[i + 1]) != 'E' ||
my_toupper(system_charset_info, sql[i + 2]) != 'L') &&
sql[0] != '/')
{
DBUG_PRINT("qcache", ("The statement is not a SELECT; Not cached"));
goto err;
}
}
STRUCT_LOCK(&structure_guard_mutex);