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Patch to fix bug#38551

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This commit is contained in:
Mikael Ronstrom
2008-10-15 12:03:45 +02:00
parent 772cdf0000
commit f1e0cffb1d
3 changed files with 53 additions and 13 deletions
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12
sql/sql_cache.h
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@ -279,6 +279,8 @@ private:
Cache_status m_cache_status;
bool m_query_cache_is_disabled;
void free_query_internal(Query_cache_block *point);
void invalidate_table_internal(THD *thd, uchar *key, uint32 key_length);
@ -437,6 +439,14 @@ protected:
/* register query in cache */
void store_query(THD *thd, TABLE_LIST *used_tables);
/**
At startup the user has an option to disable the query cache
to avoid locking the structure_guard_mutex.
This option is enabled by explicitly setting query_cache_type=OFF
in the command line.
*/
void disable_query_cache(void) { m_query_cache_is_disabled= TRUE; }
/*
Check if the query is in the cache and if this is true send the
data to client.
@ -469,6 +479,8 @@ protected:
friend void query_cache_end_of_result(THD *thd);
friend void query_cache_abort(NET *net);
bool is_disabled(void) { return m_query_cache_is_disabled; }
bool is_flushing(void)
{
return (m_cache_status != Query_cache::NO_FLUSH_IN_PROGRESS);