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Code Activity

Don't count NULL values in cardinalty for MyISAM tables.

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Free row buffer cache after each query for MyISAM tables.
Added table join option FORCE INDEX
Fixed core dump bug when connecting with hostname that could not be resolved.


include/my_base.h:
  Don't count NULL values in cardinalty
myisam/mi_check.c:
  Don't count NULL values in cardinalty
myisam/mi_extra.c:
  Free row buffer cache after each query
myisam/mi_open.c:
  Avoid realloc if cache size doesn't change
myisam/mi_search.c:
  Don't count NULL values in cardinalty
myisam/myisamdef.h:
  Change buffer length from uint to uint32 to make it more portable/predictable
mysql-test/r/myisam.result:
  Test case for cardinality with NULL keys and FORCE INDEX
mysql-test/t/myisam.test:
  Test case for cardinality with NULL keys and FORCE INDEX
sql/lex.h:
  Added table join option FORCE INDEX
sql/mysql_priv.h:
  Added table join option FORCE INDEX
sql/opt_range.cc:
  Added table join option FORCE INDEX
sql/sql_base.cc:
  Added table join option FORCE INDEX
sql/sql_lex.h:
  Added table join option FORCE INDEX
sql/sql_parse.cc:
  Added table join option FORCE INDEX
  Don't use strlen() on hostname without first checking if it's not NULL
sql/sql_select.cc:
  Added table join option FORCE INDEX
sql/sql_yacc.yy:
  Added table join option FORCE INDEX
sql/table.h:
  Added table join option FORCE INDEX
This commit is contained in:
unknown
2003-01-09 02:19:14 +02:00
parent a3f4a46bf2
commit b5e37b242e
17 changed files with 207 additions and 52 deletions
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36
sql/sql_parse.cc
View File

@@ -498,7 +498,8 @@ check_connections(THD *thd)
vio_in_addr(net->vio,&thd->remote.sin_addr);
thd->host=ip_to_hostname(&thd->remote.sin_addr,&connect_errors);
/* Cut very long hostnames to avoid possible overflows */
thd->host[min(strlen(thd->host), HOSTNAME_LENGTH)]= 0;
if (thd->host)
thd->host[min(strlen(thd->host), HOSTNAME_LENGTH)]= 0;
if (connect_errors > max_connect_errors)
return(ER_HOST_IS_BLOCKED);
}
@@ -3158,12 +3159,30 @@ bool add_to_list(SQL_LIST &list,Item *item,bool asc)
}
/*
Add a table to list of used tables
SYNOPSIS
add_table_to_list()
table Table to add
alias alias for table (or null if no alias)
table_options A set of the following bits:
TL_OPTION_UPDATING Table will be updated
TL_OPTION_FORCE_INDEX Force usage of index
lock_type How table should be locked
use_index List of indexed used in USE INDEX
ignore_index List of indexed used in IGNORE INDEX
RETURN
0 Error
# Pointer to TABLE_LIST element added to the total table list
*/
TABLE_LIST *add_table_to_list(Table_ident *table, LEX_STRING *alias,
bool updating,
thr_lock_type flags,
ulong table_options,
thr_lock_type lock_type,
List<String> *use_index,
List<String> *ignore_index
)
List<String> *ignore_index)
{
register TABLE_LIST *ptr;
THD *thd=current_thd;
@@ -3211,8 +3230,9 @@ TABLE_LIST *add_table_to_list(Table_ident *table, LEX_STRING *alias,
}
ptr->real_name=table->table.str;
ptr->real_name_length=table->table.length;
ptr->lock_type=flags;
ptr->updating=updating;
ptr->lock_type= lock_type;
ptr->updating= test(table_options & TL_OPTION_UPDATING);
ptr->force_index= test(table_options & TL_OPTION_FORCE_INDEX);
if (use_index)
ptr->use_index=(List<String> *) thd->memdup((gptr) use_index,
sizeof(*use_index));
@@ -3221,7 +3241,7 @@ TABLE_LIST *add_table_to_list(Table_ident *table, LEX_STRING *alias,
sizeof(*ignore_index));
/* check that used name is unique */
if (flags != TL_IGNORE)
if (lock_type != TL_IGNORE)
{
for (TABLE_LIST *tables=(TABLE_LIST*) thd->lex.select->table_list.first ;
tables ;