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Fixups to query cache info.

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unknown 2001-12-07 18:54:18 +10:00
parent 3f92bc1889
commit b05520526e
1 changed files with 16 additions and 17 deletions
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Docs/manual.texi
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@ -17579,7 +17579,7 @@ signal to the @code{mysqld} server.
@item @code{PRIVILEGES} @tab Reloads the privileges from the grant tables in @item @code{PRIVILEGES} @tab Reloads the privileges from the grant tables in
the @code{mysql} database. the @code{mysql} database.
@item @code{QUERY CACHE} @tab Defragment the query cache to better utilize the memory. This command will not remove any queries from the cache. @item @code{QUERY CACHE} @tab Defragment the query cache to better utilise its memory. This command will not remove any queries from the cache.
@item @code{TABLES} @tab Closes all open tables and force all tables in use to be closed. This also flushes the query cache. @item @code{TABLES} @tab Closes all open tables and force all tables in use to be closed. This also flushes the query cache.
@ -18501,13 +18501,14 @@ long (like when inserting blobs), you should increase this!
Don't cache results that are bigger than this. (Default 1M). Don't cache results that are bigger than this. (Default 1M).
@item @code{query_cache_size} @item @code{query_cache_size}
The memory allocated to store results from old queries. If this is zero The memory allocated to store results from old queries.
the query cache is disabled. If this is 0, the query cache is disabled (default).
@item @code{query_cache_startup_type} @item @code{query_cache_startup_type}
This may have be set to 0 (cache results but don't retrieve results from This may be set (only numeric) to
cache), 1 (cache results by defaults) or 2 (only cache @code{SELECT}'s marked 0 (OFF, don't cache or retrieve results),
with @code{SQL_CACHE}). 1 (ON, cache all results except @code{SELECT SQL_NO_CACHE ...} queries) or
2 (DEMAND, cache only @code{SELECT SQL_CACHE ...} queries).
@item @code{safe_show_databases} @item @code{safe_show_databases}
Don't show databases for which the user doesn't have any database or Don't show databases for which the user doesn't have any database or
@ -25727,16 +25728,14 @@ flag again, the @code{SQL_MAX_JOIN_SIZE} variable will be ignored.
You can set a default value for this variable by starting @code{mysqld} with You can set a default value for this variable by starting @code{mysqld} with
@code{-O max_join_size=#}. @code{-O max_join_size=#}.
@item SQL_QUERY_CACHE_TYPE = [OFF | ON | DEMAND] @item SQL_QUERY_CACHE_TYPE = OFF | ON | DEMAND
@item SQL_QUERY_CACHE_TYPE = [0 | 1 | 2] @item SQL_QUERY_CACHE_TYPE = 0 | 1 | 2
Set query cache setting for this thread.
The numbers stand for the corresponding verbose option.
@multitable @columnfractions .3 .7 @multitable @columnfractions .3 .7
@item @strong{Option} @tab @strong{Description} @item @strong{Option} @tab @strong{Description}
@item 0 or OFF @tab Cache @code{SELECT} results, but don't retrieve results from cache. @item 0 or OFF @tab Don't cache or retrieve results.
@item 1 or ON @tab Cache all @code{SELECT}'s that are not marked with @code{SQL_NO_CACHE}. @item 1 or ON @tab Cache all results except @code{SELECT SQL_NO_CACHE ...} queries.
@item 2 or DEMAND @tab Cache only @code{SELECT SQL_CACHE}) queries. @item 2 or DEMAND @tab Cache only @code{SELECT SQL_CACHE ...} queries.
@end multitable @end multitable
@item SQL_SAFE_UPDATES = 0 | 1 @item SQL_SAFE_UPDATES = 0 | 1
@ -31223,11 +31222,11 @@ MySQL Version 3.23 this shouldn't normally be needed.
@item @item
@code{SQL_CACHE} tells MySQL to store the query result in the query cache @code{SQL_CACHE} tells MySQL to store the query result in the query cache
even if you are using @code{SQL_QUERY_CACHE_METHOD} 2 (= @code{DEMAND}). if you are using @code{SQL_QUERY_CACHE_TYPE=2} (@code{DEMAND}).
@item @item
@code{SQL_NO_CACHE} tells MySL to not store the query result in the @code{SQL_NO_CACHE} tells MySQL to not allow the query result to be stored
query cache. in the query cache.
@item @item
@cindex @code{GROUP BY}, extensions to ANSI SQL @cindex @code{GROUP BY}, extensions to ANSI SQL