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Speed up things if mysql.proc doesn't exists

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This commit is contained in:
monty@mysql.com
2004-03-26 13:14:40 +02:00
parent f9e2c6cd27
commit 034a2f357f
5 changed files with 17 additions and 3 deletions
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1
sql/mysql_priv.h
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@ -867,6 +867,7 @@ extern bool using_update_log, opt_large_files;
extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
extern bool opt_disable_networking, opt_skip_show_db;
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
extern bool mysql_proc_table_exists;
extern uint volatile thread_count, thread_running, global_read_lock;
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
extern my_bool opt_safe_show_db, opt_local_infile, lower_case_table_names;

2
sql/opt_range.cc
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@ -1335,7 +1335,7 @@ static int get_index_merge_params(PARAM *param, key_map& needed_reg,
else
{
double n_blocks=
ceil((double)(longlong)param->table->file->data_file_length / IO_SIZE);
ceil((double) ((longlong)param->table->file->data_file_length / IO_SIZE));
double busy_blocks=
n_blocks * (1.0 - pow(1.0 - 1.0/n_blocks, (double) records_for_unique));

13
sql/sp.cc
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@ -56,6 +56,8 @@ enum
MYSQL_PROC_FIELD_COUNT
};
bool mysql_proc_table_exists= 1;
/* *opened=true means we opened ourselves */
static int
db_find_routine_aux(THD *thd, int type, char *name, uint namelen,
@ -67,6 +69,14 @@ db_find_routine_aux(THD *thd, int type, char *name, uint namelen,
DBUG_ENTER("db_find_routine_aux");
DBUG_PRINT("enter", ("type: %d name: %*s", type, namelen, name));
/*
Speed up things if mysql.proc doesn't exists
mysql_proc_table_exists is set when on creates a stored procedure
or on flush privileges
*/
if (!mysql_proc_table_exists && ltype == TL_READ)
DBUG_RETURN(SP_OPEN_TABLE_FAILED);
// Put the key used to read the row together
memset(key, (int)' ', 64); // QQ Empty db for now
keylen= namelen;
@ -93,10 +103,12 @@ db_find_routine_aux(THD *thd, int type, char *name, uint namelen,
if (! (table= open_ltable(thd, &tables, ltype)))
{
*tablep= NULL;
mysql_proc_table_exists= 0;
DBUG_RETURN(SP_OPEN_TABLE_FAILED);
}
*opened= TRUE;
}
mysql_proc_table_exists= 1;
if (table->file->index_read_idx(table->record[0], 0,
key, keylen,
@ -718,6 +730,7 @@ sp_function_exists(THD *thd, LEX_STRING *name)
ret= TRUE;
if (opened)
close_thread_tables(thd, 0, 1);
thd->clear_error();
DBUG_RETURN(ret);
}

2
sql/sql_acl.cc
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@ -140,7 +140,6 @@ my_bool acl_init(THD *org_thd, bool dont_read_acl_tables)
MYSQL_LOCK *lock;
my_bool return_val=1;
bool check_no_resolve= specialflag & SPECIAL_NO_RESOLVE;
DBUG_ENTER("acl_init");
if (!acl_cache)
@ -153,6 +152,7 @@ my_bool acl_init(THD *org_thd, bool dont_read_acl_tables)
}
priv_version++; /* Privileges updated */
mysql_proc_table_exists= 1; // Assume mysql.proc exists
/*
To be able to run this from boot, we allocate a temporary THD

2
sql/sql_lex.cc
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@ -169,7 +169,7 @@ static int find_keyword(LEX *lex, uint len, bool function)
LEX_STRING ls;
ls.str = (char *)tok; ls.length= len;
if (function && sp_function_exists(current_thd, &ls)) // QQ temp fix
if (function && sp_function_exists(lex->thd, &ls)) // QQ temp fix
{
lex->safe_to_cache_query= 0;
lex->yylval->lex_str.str= lex->thd->strmake((char*)lex->tok_start, len);