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Kirill Smelkov
mariadb
Commits
f6ff0c49
Commit
f6ff0c49
authored
Dec 13, 2001
by
unknown
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Merge arjen@work.mysql.com:/home/bk/mysql-4.0
into co3064164-a.bitbike.com:/home/arjen/mysql-4.0
parents
98595620
e5e962e3
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Docs/manual.texi
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Docs/manual.texi
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f6ff0c49
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@@ -34695,17 +34695,17 @@ transaction cause the corresponding cache entries to be invalidated.
A query cannot be cached if it contains one of the functions:
@multitable @columnfractions .25 .25 .25 .25
@item @strong{Function} @tab @strong{Function}
@tab @strong{Function} @tab @strong{Function}
@tab @strong{Function} @tab @strong{Function}
@item @code{User Defined Functions} @tab @code{CONNECTION_ID}
@tab @code{FOUND_ROWS} @tab @code{GET_LOCK}
@tab @code{FOUND_ROWS} @tab @code{GET_LOCK}
@item @code{RELEASE_LOCK} @tab @code{LOAD_FILE}
@tab @code{MASTER_POS_WAIT} @tab @code{NOW}
@tab @code{MASTER_POS_WAIT} @tab @code{NOW}
@item @code{SYSDATE} @tab @code{CURRENT_TIMESTAMP}
@tab @code{CURDATE} @tab @code{CURRENT_DATE}
@tab @code{CURDATE} @tab @code{CURRENT_DATE}
@item @code{CURTIME} @tab @code{CURRENT_TIME}
@tab @code{DATABASE} @tab @code{ENCRYPT} (with one parameter)
@tab @code{DATABASE} @tab @code{ENCRYPT} (with one parameter)
@item @code{LAST_INSERT_ID} @tab @code{RAND}
@tab @code{UNIX_TIMESTAMP} (without parameters) @tab @code{USER}
@tab @code{UNIX_TIMESTAMP} (without parameters) @tab @code{USER}
@item @code{BENCHMARK}
@end multitable
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@@ -34738,6 +34738,7 @@ If this is 0, the query cache is disabled (default).
@item @code{query_cache_startup_type}
This may be set (only numeric) to
@multitable @columnfractions .3 .7
@item @strong{Option} @tab @strong{Description}
@item 0 @tab (OFF, don't cache or retrieve results)
@item 1 @tab (ON, cache all results except @code{SELECT SQL_NO_CACHE ...} queries)
@item 2 @tab (DEMAND, cache only @code{SELECT SQL_CACHE ...} queries)
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@@ -34771,16 +34772,15 @@ specified in a @code{SELECT} query:
@findex SQL_CACHE
@findex SQL_NO_CACHE
@itemize
@multitable @columnfractions .3 .7
@item @strong{Option} @tab @strong{Description}
@item @code{SQL_CACHE}
If @code{SQL_QUERY_CACHE_TYPE} is @code{DEMAND},
allow the query to be cached.
If @code{SQL_QUERY_CACHE_TYPE} is @code{ON}, this is the default.
If @code{SQL_QUERY_CACHE_TYPE} is @code{OFF}, do nothing.
@tab If @code{SQL_QUERY_CACHE_TYPE} is @code{DEMAND}, allow the query to be cached.
If @code{SQL_QUERY_CACHE_TYPE} is @code{ON}, this is the default.
If @code{SQL_QUERY_CACHE_TYPE} is @code{OFF}, do nothing.
@item @code{SQL_NO_CACHE}
Make this query non-cachable, don't allow this query to be stored
in the cache.
@end itemize
@tab Make this query non-cachable, don't allow this query to be stored in the cache.
@end multitable
@node Query Cache Status and Maintenance, , Query Cache in SELECT, Query Cache
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@@ -34796,19 +34796,20 @@ query cache.
You can monitor query cache performance in @code{SHOW STATUS}:
@itemize
@multitable @columnfractions .3 .7
@item @strong{Variable} @tab @strong{Description}
@item @code{Qcache_queries_in_cache}
Number of queries registered in the cache.
@tab
Number of queries registered in the cache.
@item @code{Qcache_inserts}
Number of queries added to the cache.
@tab
Number of queries added to the cache.
@item @code{Qcache_hits}
Number of cache hits
@tab
Number of cache hits
@item @code{Qcache_not_cached}
Number of non-cached queries
(not cachable, or due to SQL_QUERY_CACHE_TYPE)
@tab
Number of non-cached queries
(not cachable, or due to SQL_QUERY_CACHE_TYPE)
@item @code{Qcache_free_memory}
Amount of free memory for query cache.
@end
itemiz
e
@tab
Amount of free memory for query cache.
@end
multitabl
e
Please note:
Total number of queries =
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