@code{CHECK TABLE} only works on @code{MyISAM} tables and is the same things
@code{CHECK TABLE} only works on @code{MyISAM} tables and is the same thing
as running @code{myisamchk -m table_name} on the table.
Check the table(s) for errors and updates the key statistics for the table.
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@@ -16834,18 +16835,18 @@ The command returns a table with the following columns:
@end multitable
Note that you can get many rows of information for each checked
table. The last one row will be of @code{Msg_type status} and should
table. The last row will be of @code{Msg_type status} and should
normally be @code{OK}. If you don't get @code{OK}, or @code{Not
checked} you should normally run a repair of the table. @xref{Table
maintenance}. @code{Not checked} means that the table the given @code{TYPE}
told @code{MySQL} that there wasn't any need to check the table.
The different check types stands for the following:
The different check types stand for the following:
@multitable @columnfractions .20 .80
@item @code{QUICK} @tab Don't scan the rows for fixed size record tables.
@item @code{FAST} @tab Only check tables which hasn't been closed properly.
@item @code{CHANGED} @tab Only check tables which has been changed since last check or hasn't been closed properly.
@item @code{FAST} @tab Only check tables which haven't been closed properly.
@item @code{CHANGED} @tab Only check tables which have been changed since last check or haven't been closed properly.
@item @code{EXTENDED} @tab Do a full key lookup for all keys for each row. This enasures that the table is 100 % consistent, but will take a long time!
@end multitable
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@@ -18392,7 +18393,7 @@ The status variables listed above have the following meaning:
@item @code{Bytes_received} @tab Number of bytes received from the client
@item @code{Bytes_sent} @tab Number of bytes received from the client
@item @code{Connections} @tab Number of connection attempts to the @strong{MySQL} server.
@item @code{Created_tmp_tables} @tab Number of implicit temporary tables that has been created while executing statements.
@item @code{Created_tmp_tables} @tab Number of implicit temporary tables that have been created while executing statements.
@item @code{Delayed_insert_threads} @tab Number of delayed insert handler threads in use.
@item @code{Delayed_writes} @tab Number of rows written with @code{INSERT DELAYED}.
@item @code{Delayed_errors} @tab Number of rows written with @code{INSERT DELAYED} for which some error occurred (probably @code{duplicate key}).
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@@ -18425,7 +18426,7 @@ have..
@item @code{Open_tables} @tab Number of tables that are open.
@item @code{Open_files} @tab Number of files that are open.
@item @code{Open_streams} @tab Number of streams that are open (used mainly for logging)
@item @code{Opened_tables} @tab Number of tables that has been opened.
@item @code{Opened_tables} @tab Number of tables that have been opened.
@item @code{Questions} @tab Number of queries sent to the server.
@item @code{Slow_launch_threads} @tab Number of threads that has taken more than @code{slow_launch_time} to connect.
@item @code{Slow_queries} @tab Number of queries that has taken more than @code{long_query_time}
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@@ -26436,9 +26437,9 @@ If you are using @code{--extended-check} and have much memory, you should
increase the value of @code{key_buffer_size} a lot!
@item -F or --fast
Check only tables that hasn't been closed properly.
Check only tables that haven't been closed properly.
@item -C or --check-only-changed
Check only tables that has changed since last check.
Check only tables that have changed since last check.
@item -f or --force
Restart @code{myisamchk} with @code{-r} (repair) on the table, if
@code{myisamchk} finds any errors in the table.
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@@ -35351,9 +35352,9 @@ and will soon be declared beta, gamma and release.
@itemize @bullet
@item
Changed @code{ALTER TABLE}, @code{LOAD DATA INFILE} on empty tables and
@code{INSERT ... SELECT...} on empty tables to create non-unique indexs
@code{INSERT ... SELECT...} on empty tables to create non-unique indexes
in a separate batch with sorting. This will make the above calls much
faster when you have many index.
faster when you have many indexes.
@item
@code{ALTER TABLE} now logs the first used insert_id correctly.
@item
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@@ -35376,7 +35377,7 @@ Fixed that BDB tables work on part keys.
@item
Check table now updates key statistics for the table.
@item
@code{ANALYZE TABLE} will now only update tables that has been changed
@code{ANALYZE TABLE} will now only update tables that have been changed
since last @code{ANALYZE}. Note that this is a new feature and tables
will not be marked to be analyzed until they are updated in any way with
3.23.23 or newer. For older tables, you have to do @code{CHECK TABLE}
