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Cleanup of new code pushed into 5.0 since last pull

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Merged the different find_xxxx_table_in_list functions to one + some inline functions
This commit is contained in:
monty@mysql.com
2004-09-03 21:43:04 +03:00
parent c5a84657a8
commit cbd67f49e1
18 changed files with 491 additions and 458 deletions
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212
sql/sql_base.cc
View File

@ -548,81 +548,37 @@ void close_temporary_tables(THD *thd)
thd->temporary_tables=0;
}
#ifdef UNUSED
/*
Find first suitable table by alias in given list.
Find table in list.
SYNOPSIS
find_table_in_list()
table - pointer to table list
db_name - data base name or 0 for any
table_name - table name or 0 for any
table Pointer to table list
offset Offset to which list in table structure to use
db_name Data base name
table_name Table name
NOTES:
This is called by find_table_in_local_list() and
find_table_in_global_list().
RETURN VALUES
NULL Table not found
# Pointer to found table.
*/
TABLE_LIST * find_table_in_list(TABLE_LIST *table,
const char *db_name, const char *table_name)
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
uint offset,
const char *db_name,
const char *table_name)
{
for (; table; table= table->next)
if ((!db_name || !strcmp(table->db, db_name)) &&
(!table_name || !my_strcasecmp(table_alias_charset,
table->alias, table_name)))
break;
return table;
}
#endif /*UNUSED*/
/*
Find real table in given global list.
SYNOPSIS
find_real_table_in_list()
table - pointer to table list
db_name - data base name
table_name - table name
RETURN VALUES
NULL Table not found
# Pointer to found table.
*/
TABLE_LIST * find_real_table_in_list(TABLE_LIST *table,
const char *db_name,
const char *table_name)
{
for (; table; table= table->next_global)
if (!strcmp(table->db, db_name) &&
!strcmp(table->real_name, table_name))
break;
return table;
}
/*
Find real table in given local list.
SYNOPSIS
find_real_table_in_local_list()
table - pointer to table list
db_name - data base name
table_name - table name
RETURN VALUES
NULL Table not found
# Pointer to found table.
*/
TABLE_LIST * find_real_table_in_local_list(TABLE_LIST *table,
const char *db_name,
const char *table_name)
{
for (; table; table= table->next_local)
for (; table; table= *(TABLE_LIST **) ((char*) table + offset))
{
if (!strcmp(table->db, db_name) &&
!strcmp(table->real_name, table_name))
break;
}
return table;
}
@ -1363,7 +1319,7 @@ void abort_locked_tables(THD *thd,const char *db, const char *table_name)
db Database name
name Table name
alias Alias name
table_desc TABLE_LIST descriptor
table_desc TABLE_LIST descriptor (used with views)
mem_root temporary mem_root for parsing
NOTES
@ -1403,10 +1359,10 @@ static int open_unireg_entry(THD *thd, TABLE *entry, const char *db,
if (!entry->crashed)
{
/*
Frm file could not be found on disk
Since it does not exist, no one can be using it
LOCK_open has been locked to protect from someone else
trying to discover the table at the same time.
Frm file could not be found on disk
Since it does not exist, no one can be using it
LOCK_open has been locked to protect from someone else
trying to discover the table at the same time.
*/
if (discover_retry_count++ != 0)
goto err;
@ -1603,7 +1559,7 @@ int open_tables(THD *thd, TABLE_LIST *start, uint *counter)
tables->table->grant= tables->grant;
}
thd->proc_info=0;
free_root(&new_frm_mem, MYF(0));
free_root(&new_frm_mem, MYF(0)); // Free pre-alloced block
DBUG_RETURN(result);
}
@ -1671,7 +1627,8 @@ TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type lock_type)
thd->proc_info="Opening table";
thd->current_tablenr= 0;
while (!(table= open_table(thd, table_list, 0, &refresh)) && refresh) ;
while (!(table= open_table(thd, table_list, 0, &refresh)) && refresh)
;
if (table)
{
@ -1900,7 +1857,7 @@ bool rm_temporary_table(enum db_type base, char *path)
** return unique field
******************************************************************************/
// Special Field pointers for find_field_in_tables returning
/* Special Field pointers for find_field_in_tables returning */
const Field *not_found_field= (Field*) 0x1;
const Field *view_ref_found= (Field*) 0x2;
@ -1979,6 +1936,7 @@ Field *find_field_in_table(THD *thd, TABLE_LIST *table_list,
return fld;
}
/*
Find field in table
@ -2561,23 +2519,47 @@ bool get_key_map_from_key_list(key_map *map, TABLE *table,
}
/****************************************************************************
This just drops in all fields instead of current '*' field
Returns pointer to last inserted field if ok
****************************************************************************/
/*
Drops in all fields instead of current '*' field
SYNOPSIS
insert_fields()
thd Thread handler
tables List of tables
db_name Database name in case of 'database_name.table_name.*'
table_name Table name in case of 'table_name.*'
it Pointer to '*'
any_privileges 0 If we should ensure that we have SELECT privileges
for all columns
1 If any privilege is ok
RETURN
0 ok
'it' is updated to point at last inserted
1 error. The error message is sent to client
*/
bool
insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
const char *table_name, List_iterator<Item> *it,
bool any_privileges)
{
/* allocate variables on stack to avoid pool alloaction */
Field_iterator_table table_iter;
Field_iterator_view view_iter;
uint found;
DBUG_ENTER("insert_fields");
found=0;
found= 0;
for (; tables; tables= tables->next_local)
{
TABLE *table=tables->table;
Field_iterator *iterator;
TABLE_LIST *natural_join_table;
Field *field;
TABLE_LIST *embedded;
TABLE_LIST *last;
TABLE_LIST *embedding;
TABLE *table= tables->table;
if (!table_name || (!my_strcasecmp(table_alias_charset, table_name,
tables->alias) &&
(!db_name || !strcmp(tables->db,db_name))))
@ -2588,36 +2570,26 @@ insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
{
if (tables->view)
{
Field_iterator_view fields;
fields.set(tables);
view_iter.set(tables);
if (check_grant_all_columns(thd, SELECT_ACL, &tables->grant,
tables->view_db.str,
tables->view_name.str,
&fields))
DBUG_RETURN(1);
&view_iter))
goto err;
}
else
{
Field_iterator_table fields;
fields.set(tables);
table_iter.set(tables);
if (check_grant_all_columns(thd, SELECT_ACL, &table->grant,
table->table_cache_key, table->real_name,
&fields))
DBUG_RETURN(1);
&table_iter))
goto err;
}
}
#endif
/* allocate 2 variables on stack to avoid pool alloaction */
Field_iterator_table table_iter;
Field_iterator_view view_iter;
Field_iterator *iterator;
TABLE_LIST *natural_join_table= 0;
Field *field;
thd->used_tables|=table->map;
TABLE_LIST *embedded= tables;
TABLE_LIST *last= embedded;
TABLE_LIST *embedding;
natural_join_table= 0;
thd->used_tables|= table->map;
last= embedded= tables;
while ((embedding= embedded->embedding) &&
embedding->join_list->elements != 1)
@ -2648,7 +2620,7 @@ insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
iterator= &table_iter;
iterator->set(tables);
for (; iterator->end(); iterator->next())
for (; !iterator->end_of_fields(); iterator->next())
{
Item *not_used_item;
uint not_used_field_index= NO_CACHED_FIELD_INDEX;
@ -2699,9 +2671,7 @@ insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
thd->host_or_ip,
fld->field_name,
tab);
/* TODO: should be removed to have only one send_error */
send_error(thd);
DBUG_RETURN(1);
goto err;
}
}
#endif
@ -2735,15 +2705,17 @@ insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
table->used_fields=table->fields;
}
}
if (!found)
{
if (!table_name)
my_error(ER_NO_TABLES_USED,MYF(0));
else
my_error(ER_BAD_TABLE_ERROR,MYF(0),table_name);
send_error(thd);
}
DBUG_RETURN(!found);
if (found)
DBUG_RETURN(0);
if (!table_name)
my_error(ER_NO_TABLES_USED, MYF(0));
else
my_error(ER_BAD_TABLE_ERROR, MYF(0), table_name);
err:
send_error(thd);
DBUG_RETURN(1);
}
@ -2832,13 +2804,16 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
if (arena)
thd->set_n_backup_item_arena(arena, &backup);
TABLE *t1=tab1->table;
TABLE *t2=tab2->table;
/* allocate 2 variables on stack to avoid pool alloaction */
Field_iterator_table table_iter;
Field_iterator_view view_iter;
Field_iterator *iterator;
Field *t1_field, *t2_field;
Item *item_t2;
Item_cond_and *cond_and=new Item_cond_and();
if (!cond_and) // If not out of memory
DBUG_RETURN(1);
cond_and->top_level_item();
@ -2854,9 +2829,7 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
table_iter.set(tab1);
}
Field *t1_field, *t2_field;
Item *item_t2;
for (; iterator->end(); iterator->next())
for (; !iterator->end_of_fields(); iterator->next())
{
const char *t1_field_name= iterator->name();
uint not_used_field_index= NO_CACHED_FIELD_INDEX;
@ -3190,17 +3163,19 @@ int init_ftfuncs(THD *thd, SELECT_LEX *select_lex, bool no_order)
table_desc TABLE_LIST descriptor
mem_root temporary MEM_ROOT for parsing
*/
static my_bool
open_new_frm(const char *path, const char *alias, uint db_stat, uint prgflag,
uint ha_open_flags, TABLE *outparam, TABLE_LIST *table_desc,
MEM_ROOT *mem_root)
{
DBUG_ENTER("open_new_frm");
LEX_STRING pathstr;
pathstr.str= (char *)path;
File_parser *parser;
DBUG_ENTER("open_new_frm");
pathstr.str= (char*) path;
pathstr.length= strlen(path);
File_parser *parser= sql_parse_prepare(&pathstr, mem_root, 1);
if (parser)
if ((parser= sql_parse_prepare(&pathstr, mem_root, 1)))
{
if (!strncmp("VIEW", parser->type()->str, parser->type()->length))
{
@ -3217,10 +3192,7 @@ open_new_frm(const char *path, const char *alias, uint db_stat, uint prgflag,
bzero(outparam, sizeof(outparam)); // do not run repair
DBUG_RETURN(1);
}
DBUG_RETURN(0);
}
else
{
DBUG_RETURN(1);
}
DBUG_RETURN(0);
DBUG_RETURN(1);
}