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Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-4.1

Browse Source 
into mysql.com:/dbdata/psergey/mysql-4.1-ps-merge


sql/item.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
This commit is contained in:
unknown
2004-05-21 04:31:07 +04:00
parent ee0732603e e7710af7f4
commit fc68be78eb
35 changed files with 847 additions and 105 deletions
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123
sql/sql_parse.cc
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@ -1424,7 +1424,6 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
}
case COM_EXECUTE:
{
thd->free_list= NULL;
mysql_stmt_execute(thd, packet, packet_length);
break;
}
@ -1973,7 +1972,125 @@ mysql_execute_command(THD *thd)
}
break;
}
case SQLCOM_PREPARE:
{
char *query_str;
uint query_len;
if (lex->prepared_stmt_code_is_varref)
{
/* This is PREPARE stmt FROM @var*/
String str;
CHARSET_INFO *to_cs= thd->variables.collation_connection;
CHARSET_INFO *from_cs;
const char *buf;
uint buf_len;
bool need_conversion;
//// psergey: find the variable and convert it.
LINT_INIT(from_cs);
user_var_entry *entry;
uint32 unused;
if ((entry=
(user_var_entry*)hash_search(&thd->user_vars,
(byte*)lex->prepared_stmt_code.str,
lex->prepared_stmt_code.length))
&& entry->value)
{
switch (entry->type)
{
case REAL_RESULT:
str.set(*(double*)entry->value, NOT_FIXED_DEC, to_cs);
buf_len= str.length();
buf= str.ptr();
need_conversion= false;
break;
case INT_RESULT:
str.set(*(longlong*)entry->value, to_cs);
buf_len= str.length();
buf= str.ptr();
need_conversion= false;
break;
case STRING_RESULT:
buf_len= entry->length;
buf= entry->value;
from_cs = entry->collation.collation;
need_conversion= String::needs_conversion(entry->length, from_cs,
to_cs, &unused);
break;
default:
buf= "";
need_conversion= false;
buf_len= 0;
DBUG_ASSERT(0);
}
}
else
{
from_cs= &my_charset_bin;
str.set("NULL", 4, from_cs);
buf= str.ptr();
buf_len= str.length();
need_conversion= String::needs_conversion(str.length(), from_cs,
to_cs, &unused);
}
query_len = need_conversion? (buf_len* to_cs->mbmaxlen) : buf_len;
if (!(query_str= alloc_root(&thd->mem_root, query_len+1)))
{
send_error(thd, ER_OUT_OF_RESOURCES);
}
if (need_conversion)
query_len= copy_and_convert(query_str, query_len, to_cs, buf, buf_len,
from_cs);
else
memcpy(query_str, buf, query_len);
query_str[query_len] = 0;
}
else
{
DBUG_PRINT("info", ("PREPARE: %.*s FROM '%.*s' \n",
lex->prepared_stmt_name.length,
lex->prepared_stmt_name.str,
lex->prepared_stmt_code.length,
lex->prepared_stmt_code.str));
query_str= lex->prepared_stmt_code.str;
query_len= lex->prepared_stmt_code.length + 1;
}
thd->command= COM_PREPARE;
if (!mysql_stmt_prepare(thd, query_str, query_len + 1,
&lex->prepared_stmt_name))
send_ok(thd, 0L, 0L, "Statement prepared");
break;
}
case SQLCOM_EXECUTE:
{
DBUG_PRINT("info", ("EXECUTE: %.*s\n",
lex->prepared_stmt_name.length,
lex->prepared_stmt_name.str));
mysql_sql_stmt_execute(thd, &lex->prepared_stmt_name);
lex->prepared_stmt_params.empty();
break;
}
case SQLCOM_DEALLOCATE_PREPARE:
{
Statement* stmt;
DBUG_PRINT("info", ("DEALLOCATE PREPARE: %.*s\n",
lex->prepared_stmt_name.length,
lex->prepared_stmt_name.str));
if ((stmt= thd->stmt_map.find_by_name(&lex->prepared_stmt_name)))
{
thd->stmt_map.erase(stmt);
send_ok(thd);
}
else
{
res= -1;
my_error(ER_UNKNOWN_STMT_HANDLER, MYF(0),
lex->prepared_stmt_name.length, lex->prepared_stmt_name.str,
"DEALLOCATE PREPARE");
}
break;
}
case SQLCOM_DO:
if (tables && ((res= check_table_access(thd, SELECT_ACL, tables,0)) ||
(res= open_and_lock_tables(thd,tables))))
@ -3404,7 +3521,7 @@ error:
*/
int check_one_table_access(THD *thd, ulong privilege, TABLE_LIST *tables)
{
if (check_access(thd, privilege, tables->db, &tables->grant.privilege,0,0))
return 1;