mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-22 14:54:20 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
mariadb/include
History
vasil 9bbd5454db branches/zip: 
The cardinality of every index (the number of different key values) is
calculated when the table is opened, at SHOW TABLE STATUS,
ANALYZE TABLE and on other circumstances (like when the table has
changed too much). Note that if the mysql client is running with the
auto-rehash setting turned on (default) this causes all tables to be
opened when it starts.

Previously InnoDB sampled 8 random pages from the index to get an
estimate of the cardinality. Now the number of sampled pages can be
changed via the global parameter innodb_stats_sample_pages which can
be tuned at runtime. The default value for this parameter is 8.

If the value of this parameter is changed, there may be serious problems:

- small values (say, 1) can cause an error in table stats;
- values much larger than 8 (say, 100), can cause a big slowdown in
  table opening time, SHOW TABLE status, etc.
- query plans may be different from the old ones.

Approved by:	Heikki
2008-08-07 13:47:44 +00:00
..
btr0btr.h branches/zip: Non-functional change: Add some missing const qualifiers. 2008-03-13 09:29:22 +00:00
btr0btr.ic branches/zip: Silence most GCC 4.2.1 warnings about const pointers. 2007-10-03 12:22:29 +00:00
btr0cur.h branches/zip: Fix terminology that was introduced in r2569: 2008-08-06 08:59:28 +00:00
btr0cur.ic branches/zip: Minor cleanup of B-tree cursor operations. 2007-10-22 08:16:35 +00:00
btr0pcur.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
btr0pcur.ic branches/zip: Minor cleanup of B-tree cursor operations. 2007-10-22 08:16:35 +00:00
btr0sea.h branches/zip: 2008-07-15 19:28:29 +00:00
btr0sea.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
btr0types.h branches/zip: row_ext: Fetch the BLOB prefixes already at row_ext_create(). 2007-11-29 12:47:18 +00:00
buf0buddy.h branches/zip: Implement the INFORMATION_SCHEMA tables 2008-03-28 10:03:58 +00:00
buf0buddy.ic branches/zip: buf_buddy_alloc(), buf_buddy_alloc_low(): Correct a mistake 2008-02-29 12:30:41 +00:00
buf0buf.h branches/zip: Merge 2437:2485 from branches/5.1: 2008-06-06 15:24:58 +00:00
buf0buf.ic branches/zip: Fix most MSVC (Windows) compilation warnings. 2008-03-04 08:57:07 +00:00
buf0flu.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
buf0flu.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
buf0lru.h branches/zip: Improve the LRU algorithm with a separate unzip_LRU list of 2008-03-03 12:48:38 +00:00
buf0lru.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
buf0rea.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
buf0types.h branches/zip: Allow the uncompressed page size to be settable by setting 2007-12-20 13:23:23 +00:00
data0data.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
data0data.ic branches/zip: Fetch externally stored columns only when the clustered index 2008-01-16 10:10:32 +00:00
data0type.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
data0type.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
data0types.h Import 5.0 code. 2005-10-27 07:29:40 +00:00
db0err.h branches/zip: Implement the configuration parameter and settable global 2008-03-10 11:05:32 +00:00
dict0boot.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
dict0boot.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
dict0crea.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
dict0crea.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
dict0dict.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
dict0dict.ic branches/zip: Implement the configuration parameter and settable global 2008-03-10 11:05:32 +00:00
dict0load.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
dict0load.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
dict0mem.h branches/zip: 2008-08-01 13:58:11 +00:00
dict0mem.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
dict0types.h branches/zip: Simplify crash recovery in fast index creation. 2007-09-05 10:18:03 +00:00
dyn0dyn.h branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
dyn0dyn.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
eval0eval.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
eval0eval.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
eval0proc.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
eval0proc.ic branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
fil0fil.h branches/zip: Pass the tablespace flags correctly when creating or opening 2008-03-18 10:10:51 +00:00
fsp0fsp.h branches/zip: Pass the tablespace flags correctly when creating or opening 2008-03-18 10:10:51 +00:00
fsp0fsp.ic branches/zip: Merge revisions 720:765 from trunk and reindent the code 2006-08-29 09:30:31 +00:00
fut0fut.h branches/zip: Remove the fil_space_get_zip_size() call from 2007-01-18 09:59:00 +00:00
fut0fut.ic branches/zip: Remove the fil_space_get_zip_size() call from 2007-01-18 09:59:00 +00:00
fut0lst.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
fut0lst.ic branches/zip: Add const qualifiers to read-only pointers. 2006-10-26 08:52:14 +00:00
ha0ha.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ha0ha.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
ha0storage.h branches/zip: 2007-11-16 13:12:13 +00:00
ha0storage.ic branches/zip: 2007-10-08 10:46:26 +00:00
ha_prototypes.h branches/zip: row_raw_format_str_convert(): Rename to 2008-02-29 23:37:15 +00:00
handler0alter.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
hash0hash.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
hash0hash.ic branches/zip: ut_is_2pow(), ut_2pow_round(), ut_2pow_remainder(): Define 2008-03-05 09:41:51 +00:00
ibuf0ibuf.h branches/zip: ibuf_update_free_bits_zip(): When after==0, call 2008-02-25 14:01:15 +00:00
ibuf0ibuf.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
ibuf0types.h Import 5.0 code. 2005-10-27 07:29:40 +00:00
lock0iter.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
lock0lock.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
lock0lock.ic branches/zip: Make mutex_own() work with UNIV_DEBUG, without UNIV_SYNC_DEBUG. 2007-01-18 18:29:12 +00:00
lock0priv.h lock_get_type() needs to be accessed outside of the lock module, but it 2007-09-04 07:54:29 +00:00
lock0priv.ic lock_get_type() needs to be accessed outside of the lock module, but it 2007-09-04 07:54:29 +00:00
lock0types.h branches/zip: Fast index creation: Remove the ROW_PREBUILT_OBSOLETE nonsense. 2007-12-17 15:49:59 +00:00
log0log.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
log0log.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
log0recv.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
log0recv.ic branches/zip: ibuf_set_free_bits_func(): Disable redo logging when 2007-05-06 12:39:46 +00:00
mach0data.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
mach0data.ic branches/zip: Fix most MSVC (Windows) compilation warnings. 2008-03-04 08:57:07 +00:00
mem0dbg.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
mem0dbg.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
mem0mem.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
mem0mem.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
mem0pool.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
mem0pool.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
mtr0log.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
mtr0log.ic branches/zip: Implement wrappers for all operations on the buffer pool mutex. 2008-01-10 09:37:13 +00:00
mtr0mtr.h branches/zip: Implement the configuration parameter and settable global 2008-03-10 11:05:32 +00:00
mtr0mtr.ic branches/zip: Silence most GCC 4.2.1 warnings about const pointers. 2007-10-03 12:22:29 +00:00
mtr0types.h Import 5.0 code. 2005-10-27 07:29:40 +00:00
mysql_addons.h branches/zip: 2008-02-08 13:19:56 +00:00
os0file.h branches/zip: 2008-05-16 14:41:18 +00:00
os0proc.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
os0proc.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
os0sync.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
os0sync.ic branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
os0thread.h branches/zip: Remove the unused function os_thread_join(). 2008-02-18 19:14:09 +00:00
os0thread.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
page0cur.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
page0cur.ic branches/zip: Minor cleanup of B-tree cursor operations. 2007-10-22 08:16:35 +00:00
page0page.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
page0page.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
page0types.h branches/zip: Function doesn't exist, remove declaration. 2008-06-26 07:24:23 +00:00
page0zip.h branches/zip: Rename the INFORMATION_SCHEMA tables 2008-03-28 09:28:54 +00:00
page0zip.ic branches/zip: Disable two debug assertions that attempt to call 2008-08-06 06:20:05 +00:00
pars0grm.h branches/zip: Merge revisions 583:634 from trunk. 2006-06-13 20:23:26 +00:00
pars0opt.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
pars0opt.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
pars0pars.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
pars0pars.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
pars0sym.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
pars0sym.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
pars0types.h branches/zip: Merge revisions 465:532 from trunk. 2006-05-08 06:18:59 +00:00
que0que.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
que0que.ic branches/zip: Do not access the fields of dfield_t directly. 2007-10-23 06:46:12 +00:00
que0types.h branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
read0read.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
read0read.ic branches/zip: Merge revisions 804:838 from trunk. 2006-09-19 10:14:07 +00:00
read0types.h Import 5.0 code. 2005-10-27 07:29:40 +00:00
rem0cmp.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
rem0cmp.ic branches/zip: Add explicit type casts to *.ic, because C++ does not allow 2007-08-01 10:38:07 +00:00
rem0rec.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
rem0rec.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
rem0types.h branches/zip: Merge 1533:1553 from trunk. 2007-06-06 11:07:37 +00:00
row0ext.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0ext.ic branches/zip: row_ext: Fetch the BLOB prefixes already at row_ext_create(). 2007-11-29 12:47:18 +00:00
row0ins.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0ins.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0merge.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0mysql.h branches/zip: Merge 2263:2295 from branches/5.1. 2008-02-18 20:09:03 +00:00
row0mysql.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0purge.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0purge.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0row.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0row.ic branches/zip: Initialize dfield_t::ext as soon as possible. This should 2007-10-17 12:13:29 +00:00
row0sel.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
row0sel.ic branches/zip: Add explicit type casts to *.ic, because C++ does not allow 2007-08-01 10:38:07 +00:00
row0types.h branches/zip: Fast index creation: Remove the ROW_PREBUILT_OBSOLETE nonsense. 2007-12-17 15:49:59 +00:00
row0uins.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0uins.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0umod.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0umod.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0undo.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
row0undo.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
row0upd.h branches/zip: Fix a bug in the retrieval of old versions of records containing 2008-03-13 12:49:34 +00:00
row0upd.ic branches/zip: Fix a bug in the retrieval of old versions of records containing 2008-03-13 12:49:34 +00:00
row0vers.h branches/zip: Non-functional change: Add some missing const qualifiers. 2008-03-13 09:29:22 +00:00
row0vers.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
srv0que.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
srv0srv.h branches/zip: 2008-08-07 13:47:44 +00:00
srv0srv.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
srv0start.h branches/zip: 2008-04-29 14:57:06 +00:00
sync0arr.h branches/zip: Merge 2263:2295 from branches/5.1. 2008-02-18 20:09:03 +00:00
sync0arr.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
sync0rw.h branches/zip: Merge 2263:2295 from branches/5.1. 2008-02-18 20:09:03 +00:00
sync0rw.ic branches/zip: Merge 2263:2295 from branches/5.1. 2008-02-18 20:09:03 +00:00
sync0sync.h branches/zip: 2008-05-06 15:00:25 +00:00
sync0sync.ic branches/zip: Merge 2263:2295 from branches/5.1. 2008-02-18 20:09:03 +00:00
sync0types.h Import 5.0 code. 2005-10-27 07:29:40 +00:00
thr0loc.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
thr0loc.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
trx0i_s.h branches/zip: Fix most MSVC (Windows) compilation warnings. 2008-03-04 08:57:07 +00:00
trx0purge.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
trx0purge.ic branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
trx0rec.h branches/zip issue# 33 2008-07-29 17:06:18 +00:00
trx0rec.ic branches/zip: Merge branches/fast-index-creation -r1413. 2007-04-04 11:05:33 +00:00
trx0roll.h branches/zip: In the rollback of incomplete transactions after crash 2008-08-06 08:48:34 +00:00
trx0roll.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
trx0rseg.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
trx0rseg.ic branches/zip: Remove the fil_space_get_zip_size() call from 2007-01-18 09:59:00 +00:00
trx0sys.h branches/zip: internal mantis issue#49 2008-06-18 15:45:34 +00:00
trx0sys.ic branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global 2008-02-06 14:17:36 +00:00
trx0trx.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
trx0trx.ic branches/zip: Fast index creation: Release locks on system tables before 2008-01-25 14:26:07 +00:00
trx0types.h branches/zip: Fix terminology that was introduced in r2569: 2008-08-06 08:59:28 +00:00
trx0undo.h branches/zip: Correct some typos in comments. 2008-08-06 12:45:35 +00:00
trx0undo.ic branches/zip: Add explicit type casts to *.ic, because C++ does not allow 2007-08-01 10:38:07 +00:00
trx0xa.h branches/zip: Remove unused definitions from include/trx0xa.h. 2008-02-06 08:19:56 +00:00
univ.i branches/zip: 2008-05-06 11:10:09 +00:00
usr0sess.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
usr0sess.ic Import 5.0 code. 2005-10-27 07:29:40 +00:00
usr0types.h branches/zip: Merge revisions 200:236 from trunk. 2006-02-23 19:25:29 +00:00
ut0byte.h branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
ut0byte.ic branches/zip: Rename ib_ulonglong to ib_uint64_t and ib_longlong to ib_int64_t. 2008-03-17 14:19:04 +00:00
ut0dbg.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ut0list.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ut0list.ic branches/zip: Merge revisions 465:532 from trunk. 2006-05-08 06:18:59 +00:00
ut0lst.h branches/zip: Add UNIV_UNLIKELY hints to help branch prediction. 2007-10-26 12:31:48 +00:00
ut0mem.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ut0mem.ic branches/zip: 2007-10-29 13:03:53 +00:00
ut0rnd.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ut0rnd.ic branches/zip: ut_fold_binary(): Adjust a bogus debug assertion. 2007-11-21 08:00:14 +00:00
ut0sort.h branches/zip: Fix two more bogus MSVC C4090 warnings on constness differences 2008-03-05 09:54:48 +00:00
ut0ut.h branches/zip: Merge 2437:2485 from branches/5.1: 2008-06-06 15:24:58 +00:00
ut0ut.ic branches/zip: ut_is_2pow(), ut_2pow_round(), ut_2pow_remainder(): Define 2008-03-05 09:41:51 +00:00
ut0vec.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00
ut0vec.ic branches/zip: Merge revisions 265:459 from trunk. 2006-04-12 09:32:17 +00:00
ut0wqueue.h branches/zip: Add a UNIV_INTERN qualifier to every global function declaration 2008-02-18 18:38:33 +00:00