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ft_* and *bulk_insert* variables re-documented

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Docs/manual.texi
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......@@ -19568,85 +19568,89 @@ The output resembles that shown below, though the format and numbers may
differ somewhat:
@example
+-------------------------+---------------------------+
| Variable_name | Value |
+-------------------------+---------------------------+
| ansi_mode | OFF |
| back_log | 50 |
| basedir | /my/monty/ |
| bdb_cache_size | 16777216 |
| bdb_log_buffer_size | 32768 |
| bdb_home | /my/monty/data/ |
| bdb_max_lock | 10000 |
| bdb_logdir | |
| bdb_shared_data | OFF |
| bdb_tmpdir | /tmp/ |
| binlog_cache_size | 32768 |
| concurrent_insert | ON |
| connect_timeout | 5 |
| datadir | /my/monty/data/ |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| flush | OFF |
| flush_time | 0 |
| have_bdb | YES |
| have_innodb | YES |
| have_raid | YES |
| have_openssl | NO |
| init_file | |
| interactive_timeout | 28800 |
| join_buffer_size | 131072 |
| key_buffer_size | 16776192 |
| language | /my/monty/share/english/ |
| large_files_support | ON |
| log | OFF |
| log_update | OFF |
| log_bin | OFF |
| log_slave_updates | OFF |
| long_query_time | 10 |
| low_priority_updates | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 1048576 |
| max_binlog_cache_size | 4294967295 |
| max_connections | 100 |
| max_connect_errors | 10 |
| max_delayed_threads | 20 |
| max_heap_table_size | 16777216 |
| max_join_size | 4294967295 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_write_lock_count | 4294967295 |
| myisam_recover_options | DEFAULT |
| myisam_sort_buffer_size | 8388608 |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| open_files_limit | 0 |
| pid_file | /my/monty/data/donna.pid |
| port | 3306 |
| protocol_version | 10 |
| record_buffer | 131072 |
| query_buffer_size | 0 |
| safe_show_database | OFF |
| server_id | 0 |
| skip_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slow_launch_time | 2 |
| socket | /tmp/mysql.sock |
| sort_buffer | 2097116 |
| table_cache | 64 |
| table_type | MYISAM |
| thread_cache_size | 4 |
| thread_stack | 65536 |
| tmp_table_size | 1048576 |
| tmpdir | /tmp/ |
| version | 3.23.29a-gamma-debug |
| wait_timeout | 28800 |
+-------------------------+---------------------------+
+------------------------------+---------------------------+
| Variable_name | Value |
+------------------------------+---------------------------+
| ansi_mode | OFF |
| back_log | 50 |
| basedir | /my/monty/ |
| bdb_cache_size | 16777216 |
| bdb_log_buffer_size | 32768 |
| bdb_home | /my/monty/data/ |
| bdb_max_lock | 10000 |
| bdb_logdir | |
| bdb_shared_data | OFF |
| bdb_tmpdir | /tmp/ |
| binlog_cache_size | 32768 |
| concurrent_insert | ON |
| connect_timeout | 5 |
| datadir | /my/monty/data/ |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| flush | OFF |
| flush_time | 0 |
| ft_min_word_len | 4 |
| ft_max_word_len | 254 |
| ft_max_word_len_for_sort | 20 |
| have_bdb | YES |
| have_innodb | YES |
| have_raid | YES |
| have_openssl | NO |
| init_file | |
| interactive_timeout | 28800 |
| join_buffer_size | 131072 |
| key_buffer_size | 16776192 |
| language | /my/monty/share/english/ |
| large_files_support | ON |
| log | OFF |
| log_update | OFF |
| log_bin | OFF |
| log_slave_updates | OFF |
| long_query_time | 10 |
| low_priority_updates | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 1048576 |
| max_binlog_cache_size | 4294967295 |
| max_connections | 100 |
| max_connect_errors | 10 |
| max_delayed_threads | 20 |
| max_heap_table_size | 16777216 |
| max_join_size | 4294967295 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_write_lock_count | 4294967295 |
| myisam_bulk_insert_tree_size | 8388608 |
| myisam_recover_options | DEFAULT |
| myisam_sort_buffer_size | 8388608 |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| open_files_limit | 0 |
| pid_file | /my/monty/data/donna.pid |
| port | 3306 |
| protocol_version | 10 |
| record_buffer | 131072 |
| query_buffer_size | 0 |
| safe_show_database | OFF |
| server_id | 0 |
| skip_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slow_launch_time | 2 |
| socket | /tmp/mysql.sock |
| sort_buffer | 2097116 |
| table_cache | 64 |
| table_type | MYISAM |
| thread_cache_size | 4 |
| thread_stack | 65536 |
| tmp_table_size | 1048576 |
| tmpdir | /tmp/ |
| version | 3.23.29a-gamma-debug |
| wait_timeout | 28800 |
+------------------------------+---------------------------+
@end example
Each option is described below. Values for buffer sizes, lengths, and stack
......@@ -19773,6 +19777,30 @@ tables will be closed (to free up resources and sync things to disk). We
only recommend this option on Win95, Win98, or on systems where you have
very little resources.
@item @code{ft_min_word_len}
The minimum length of the word to be included in a @code{FULLTEXT} index.
@strong{Note: @code{FULLTEXT} index have to be rebuilt after changing
this variable.}
@item @code{ft_max_word_len}
The maximum length of the word to be included in a @code{FULLTEXT} index.
@strong{Note: @code{FULLTEXT} index have to be rebuilt after changing
this variable.}
@item @code{ft_max_word_len_sort}
The maximum length of the word in a @code{FULLTEXT} index
to be used in fast index recreation method in @code{REPAIR},
@code{CREATE INDEX}, or @code{ALTER TABLE}. Longer words are inserted the
slow way. The rule of the thumb is as follows: with
@code{ft_max_word_len_sort} increasing, @strong{MySQL} will create bigger
temporary files (thus slowing the process down, due to disk I/O), and will put
fewer keys in one sort block (againg, decreasing the efficiency). When
@code{ft_max_word_len_sort} is too small, instead, @strong{MySQL} will insert a
lot of words into index the slow way - but short words will be inserted very
fast. It applies only to index recreation during @code{REPAIR},
@code{CREATE INDEX}, or @code{ALTER TABLE}.
@item @code{have_bdb}
@code{YES} if @code{mysqld} supports Berkeley DB tables. @code{DISABLED}
if @code{--skip-bdb} is used.
......@@ -19919,6 +19947,12 @@ Maximum number of temporary tables a client can keep open at the same time.
@item @code{max_write_lock_count}
After this many write locks, allow some read locks to run in between.
@item @code{myisam_bulk_insert_tree_size}
MySQL uses special tree-like cache to make bulk inserts (that is,
@code{INSERT ... SELECT}, @code{INSERT ... VALUES (...), (...), ...}, and
@code{LOAD DATA INFILE}) faster. This variable limits
the size of the cache tree in bytes per thread. Default value is 8 MB.
@item @code{myisam_recover_options}
The value of the @code{--myisam-recover} option.
......@@ -35079,10 +35113,10 @@ The argument to @code{AGAINST} must be a constant string.
@node Fulltext Fine-tuning, Fulltext Features to Appear in MySQL 4.0, Fulltext restrictions, Fulltext Search
@subsection Fine-tuning MySQL Full-text Search
Unfortunately, full-text search has no user-tunable parameters yet,
although adding some is very high on the TODO. However, if you have a
Unfortunately, full-text search has few user-tunable parameters yet,
although adding some is very high on the TODO. If you have a
MySQL source distribution (@pxref{Installing source}), you can
somewhat alter the full-text search behavior.
more control on the full-text search behavior.
Note that full-text search was carefully tuned for the best searching
effectiveness. Modifying the default behavior will, in most cases,
......@@ -35092,12 +35126,9 @@ unless you know what you are doing!
@itemize @bullet
@item
Minimal length of word to be indexed is defined in
@code{myisam/ftdefs.h} file by the line
@example
#define MIN_WORD_LEN 4
@end example
Change it to the value you prefer, recompile MySQL, and rebuild
Minimal length of word to be indexed is defined by MySQL
variable @code{ft_min_word_length}. @xref{SHOW VARIABLES}.
Change it to the value you prefer, and rebuild
your @code{FULLTEXT} indexes.
@item
......@@ -35392,8 +35423,8 @@ The following options to @code{mysqld} can be used to change the behavior of
@item @code{-O myisam_sort_buffer_size=#} @tab Buffer used when recovering tables.
@item @code{--delay-key-write-for-all-tables} @tab Don't flush key buffers between writes for any MyISAM table
@item @code{-O myisam_max_extra_sort_file_size=#} @tab Used to help MySQL to decide when to use the slow but safe key cache index create method. @strong{NOTE} that this parameter is given in megabytes!
@item @code{-O myisam_max_sort_file_size=#} @tab Don't use the fast sort index method to created index if the temporary file would get bigger than this.
@strong{NOTE} that this paramter is given in megabytes!
@item @code{-O myisam_max_sort_file_size=#} @tab Don't use the fast sort index method to created index if the temporary file would get bigger than this. @strong{NOTE} that this paramter is given in megabytes!
@item @code{-O myisam_bulk_insert_tree_size=#} @tab Size of tree cache used in bulk insert optimization. @strong{NOTE} that this is a limit @strong{per thread}!
@end multitable
The automatic recovery is activated if you start @code{mysqld} with
......@@ -47875,6 +47906,9 @@ Fixed a bug when using @code{HEAP} tables with @code{LIKE}.
@item
Added @code{--mysql-version} to @code{safe_mysqld}
@item
Added variables @code{ft_min_word_len}, @code{ft_max_word_len}, and
@code{ft_max_word_len_for_sort}.
@item
Changed @code{INNOBASE} to @code{InnoDB} (because the @code{INNOBASE}
name was already used). All @code{configure} options and @code{mysqld}
start options are now using @code{innodb} instead of @code{innobase}. This
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