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Change of internal key_field=NULL handling to avoid error messages.

Browse Source 
Optimized SELECT DISTINCT ... ORDER BY ... LIMIT
Fixed reference to uninitalized variable


mysql-test/r/distinct.result:
  Updated results for new tests
mysql-test/r/func_math.result:
  Fixed test of RND()
mysql-test/r/innodb.result:
  Updated results for new tests
mysql-test/r/null.result:
  Updated results for new tests
mysql-test/t/distinct.test:
  New distinct test
mysql-test/t/func_math.test:
  Fixed test of RND()
mysql-test/t/innodb.test:
  Test for bugs
mysql-test/t/null.test:
  TEst for bugs
sql/field.h:
  Change of NULL handling to avoid error messages
sql/field_conv.cc:
  Change of NULL handling to avoid error messages
sql/item.cc:
  Change of NULL handling to avoid error messages
sql/item.h:
  Change of NULL handling to avoid error messages
sql/item_cmpfunc.cc:
  Change of NULL handling to avoid error messages
sql/item_func.cc:
  Change of NULL handling to avoid error messages
sql/item_func.h:
  Cleaned up RND() handling
sql/item_timefunc.cc:
  Change of NULL handling to avoid error messages
sql/item_timefunc.h:
  Change of NULL handling to avoid error messages
sql/opt_range.cc:
  Fixed bug in <=> NULL
sql/password.c:
  Indentation cleanup
sql/sql_base.cc:
  Change of NULL handling to avoid error messages
sql/sql_class.cc:
  Fixed reference to uninitalized variable
sql/sql_handler.cc:
  Change of NULL handling to avoid error messages
sql/sql_select.cc:
  Change of NULL handling to avoid error messages
  Optimized SELECT DISTINCT ... ORDER BY ... LIMIT
sql/sql_select.h:
  Change of NULL handling to avoid error messages
sql/unireg.cc:
  Change of NULL handling to avoid error messages
This commit is contained in:
unknown
2002-12-03 13:08:25 +02:00
parent 4f221e351d
commit 80b143c111
25 changed files with 315 additions and 119 deletions
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17
sql/sql_class.cc
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@@ -158,9 +158,8 @@ THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
{
pthread_mutex_lock(&LOCK_thread_count);
ulong tmp=(ulong) (rnd(&sql_rand) * 3000000);
randominit(&rand, tmp + (ulong) start_time,
tmp + (ulong) thread_id);
pthread_mutex_unlock(&LOCK_thread_count);
randominit(&rand, tmp + (ulong) start_time, tmp + (ulong) thread_id);
}
}
@@ -171,16 +170,16 @@ THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
void THD::init(void)
{
server_status= SERVER_STATUS_AUTOCOMMIT;
update_lock_default= (variables.low_priority_updates ?
TL_WRITE_LOW_PRIORITY :
TL_WRITE);
options= thd_startup_options;
sql_mode=(uint) opt_sql_mode;
open_options=ha_open_options;
pthread_mutex_lock(&LOCK_global_system_variables);
variables= global_system_variables;
pthread_mutex_unlock(&LOCK_global_system_variables);
server_status= SERVER_STATUS_AUTOCOMMIT;
options= thd_startup_options;
sql_mode=(uint) opt_sql_mode;
open_options=ha_open_options;
update_lock_default= (variables.low_priority_updates ?
TL_WRITE_LOW_PRIORITY :
TL_WRITE);
session_tx_isolation= (enum_tx_isolation) variables.tx_isolation;
}