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Merge mishka.local:/home/my/mysql-4.1

Browse source 
into  mishka.local:/home/my/mysql-5.0


BitKeeper/etc/ignore:
  auto-union
BitKeeper/deleted/.del-Grep.cpp~ad798e9ae519d667:
  Auto merged
BitKeeper/deleted/.del-Grep.hpp~b05e3af6cfabe387:
  Auto merged
BitKeeper/deleted/.del-ctype_cp932.result:
  Auto merged
BitKeeper/deleted/.del-ctype_cp932.test:
  Auto merged
BitKeeper/deleted/.del-have_lowercase0.inc:
  Delete: mysql-test/include/have_lowercase0.inc
VC++Files/mysql-test/mysql_test_run_new.dsp:
  Auto merged
configure.in:
  Auto merged
mysql-test/include/ps_conv.inc:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/examples/ha_archive.cc:
  Auto merged
sql/examples/ha_example.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
VC++Files/client/mysqltest.dsp:
  manual merge
VC++Files/sql/mysqld.dsp:
  manual merge
mysql-test/r/grant2.result:
  patch merge
mysql-test/r/subselect2.result:
  manual merge
mysql-test/t/grant2.test:
  patch merge
mysys/charset.c:
  Remove already deleted function
sql/examples/ha_archive.h:
  Manual merge
sql/sql_acl.cc:
  manual merge
sql/sql_db.cc:
  merge (no differences)
sql/sql_select.cc:
  manual merge
sql/table.h:
  merge (no differences)
tests/mysql_client_test.c:
  patch merge
This commit is contained in:
unknown 2005-08-25 06:55:48 +03:00
commit 173e5df37f
33 changed files with 601 additions and 3486 deletions
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26
sql/ha_innodb.cc
View file

@ -5351,6 +5351,7 @@ ha_innobase::info(
dict_table_t* ib_table;
dict_index_t* index;
ha_rows rec_per_key;
ib_longlong n_rows;
ulong j;
ulong i;
char path[FN_REFLEN];
@ -5415,7 +5416,30 @@ ha_innobase::info(
}
if (flag & HA_STATUS_VARIABLE) {
records = (ha_rows)ib_table->stat_n_rows;
n_rows = ib_table->stat_n_rows;
/* Because we do not protect stat_n_rows by any mutex in a
delete, it is theoretically possible that the value can be
smaller than zero! TODO: fix this race.
The MySQL optimizer seems to assume in a left join that n_rows
is an accurate estimate if it is zero. Of course, it is not,
since we do not have any locks on the rows yet at this phase.
Since SHOW TABLE STATUS seems to call this function with the
HA_STATUS_TIME flag set, while the left join optizer does not
set that flag, we add one to a zero value if the flag is not
set. That way SHOW TABLE STATUS will show the best estimate,
while the optimizer never sees the table empty. */
if (n_rows < 0) {
n_rows = 0;
}
if (n_rows == 0 && !(flag & HA_STATUS_TIME)) {
n_rows++;
}
records = (ha_rows)n_rows;
deleted = 0;
data_file_length = ((ulonglong)
ib_table->stat_clustered_index_size)