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Bug#29019

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"REPLACE/INSERT IGNORE/UPDATE IGNORE doesn't work"
  Federated does not record neccessary HA_EXTRA flags in order to
  support REPLACE/INSERT IGNORE/UPDATE IGNORE.
  Implement ::extra() to capture flags neccessary for functionality.
New function append_ident() to better escape identifiers consistantly.
This commit is contained in:
antony@ppcg5.local 2007-06-28 00:23:14 -07:00
parent f8b7669ee9
commit b3e29fbd1d
4 changed files with 200 additions and 64 deletions
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24
mysql-test/r/federated.result
View file

@ -1843,6 +1843,30 @@ C3A4C3B6C3BCC39F
D18DD184D184D0B5D0BAD182D0B8D0B2D0BDD183D18E
drop table federated.t1;
drop table federated.t1;
create table federated.t1 (a int primary key, b varchar(64))
DEFAULT CHARSET=utf8;
create table federated.t1 (a int primary key, b varchar(64))
ENGINE=FEDERATED
connection='mysql://root@127.0.0.1:SLAVE_PORT/federated/t1'
DEFAULT CHARSET=utf8;
insert ignore into federated.t1 values (1,"Larry"), (2,"Curly"), (1,"Moe");
select * from federated.t1;
a b
1 Larry
2 Curly
truncate federated.t1;
replace into federated.t1 values (1,"Larry"), (2,"Curly"), (1,"Moe");
select * from federated.t1;
a b
1 Moe
2 Curly
update ignore federated.t1 set a=a+1;
select * from federated.t1;
a b
1 Moe
3 Curly
drop table federated.t1;
drop table federated.t1;
DROP TABLE IF EXISTS federated.t1;
DROP DATABASE IF EXISTS federated;
DROP TABLE IF EXISTS federated.t1;

27
mysql-test/t/federated.test
View file

@ -1576,4 +1576,31 @@ connection slave;
drop table federated.t1;
#
# BUG#21019 Federated Engine does not support REPLACE/INSERT IGNORE/UPDATE IGNORE
#
connection slave;
create table federated.t1 (a int primary key, b varchar(64))
DEFAULT CHARSET=utf8;
connection master;
--replace_result $SLAVE_MYPORT SLAVE_PORT
eval create table federated.t1 (a int primary key, b varchar(64))
ENGINE=FEDERATED
connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1'
DEFAULT CHARSET=utf8;
insert ignore into federated.t1 values (1,"Larry"), (2,"Curly"), (1,"Moe");
select * from federated.t1;
truncate federated.t1;
replace into federated.t1 values (1,"Larry"), (2,"Curly"), (1,"Moe");
select * from federated.t1;
update ignore federated.t1 set a=a+1;
select * from federated.t1;
drop table federated.t1;
connection slave;
drop table federated.t1;
source include/federated_cleanup.inc;

211
sql/ha_federated.cc
View file

@ -348,6 +348,10 @@ pthread_mutex_t federated_mutex; // This is the mutex we use to
// init the hash
static int federated_init= FALSE; // Variable for checking the
// init state of hash
static char ident_quote_char= '`'; // Character for quoting
// identifiers
static char value_quote_char= '\''; // Character for quoting
// literals
/* Federated storage engine handlerton */
@ -440,6 +444,58 @@ bool federated_db_end()
return FALSE;
}
/**
@brief Append identifiers to the string.
@param[in,out] string The target string.
@param[in] name Identifier name
@param[in] length Length of identifier name in bytes
@param[in] quote_char Quote char to use for quoting identifier.
@return Operation Status
@retval FALSE OK
@retval TRUE There was an error appending to the string.
@note This function is based upon the append_identifier() function
in sql_show.cc except that quoting always occurs.
*/
static bool append_ident(String *string, const char *name, uint length,
const char quote_char)
{
bool result;
uint clen;
const char *name_end;
DBUG_ENTER("append_ident");
if (quote_char)
{
string->reserve(length * 2 + 2);
if ((result= string->append(&quote_char, 1, system_charset_info)))
goto err;
for (name_end= name+length; name < name_end; name+= clen)
{
uchar c= *(uchar *) name;
if (!(clen= my_mbcharlen(system_charset_info, c)))
clen= 1;
if (clen == 1 && c == (uchar) quote_char &&
(result= string->append(&quote_char, 1, system_charset_info)))
goto err;
if ((result= string->append(name, clen, string->charset())))
goto err;
}
result= string->append(&quote_char, 1, system_charset_info);
}
else
result= string->append(name, length, system_charset_info);
err:
DBUG_RETURN(result);
}
/*
Check (in create) whether the tables exists, and that it can be connected to
@ -458,7 +514,6 @@ bool federated_db_end()
static int check_foreign_data_source(FEDERATED_SHARE *share,
bool table_create_flag)
{
char escaped_table_name[NAME_LEN*2];
char query_buffer[FEDERATED_QUERY_BUFFER_SIZE];
char error_buffer[FEDERATED_QUERY_BUFFER_SIZE];
uint error_code;
@ -499,7 +554,6 @@ static int check_foreign_data_source(FEDERATED_SHARE *share,
}
else
{
int escaped_table_name_length= 0;
/*
Since we do not support transactions at this version, we can let the
client API silently reconnect. For future versions, we will need more
@ -517,14 +571,8 @@ static int check_foreign_data_source(FEDERATED_SHARE *share,
query.append(FEDERATED_SELECT);
query.append(FEDERATED_STAR);
query.append(FEDERATED_FROM);
query.append(FEDERATED_BTICK);
escaped_table_name_length=
escape_string_for_mysql(&my_charset_bin, (char*)escaped_table_name,
sizeof(escaped_table_name),
share->table_name,
share->table_name_length);
query.append(escaped_table_name, escaped_table_name_length);
query.append(FEDERATED_BTICK);
append_ident(&query, share->table_name, share->table_name_length,
ident_quote_char);
query.append(FEDERATED_WHERE);
query.append(FEDERATED_FALSE);
@ -784,9 +832,8 @@ uint ha_federated::convert_row_to_internal_format(byte *record,
static bool emit_key_part_name(String *to, KEY_PART_INFO *part)
{
DBUG_ENTER("emit_key_part_name");
if (to->append(FEDERATED_BTICK) ||
to->append(part->field->field_name) ||
to->append(FEDERATED_BTICK))
if (append_ident(to, part->field->field_name,
strlen(part->field->field_name), ident_quote_char))
DBUG_RETURN(1); // Out of memory
DBUG_RETURN(0);
}
@ -1309,31 +1356,28 @@ static FEDERATED_SHARE *get_share(const char *table_name, TABLE *table)
query.append(FEDERATED_SELECT);
for (field= table->field; *field; field++)
{
query.append(FEDERATED_BTICK);
query.append((*field)->field_name);
query.append(FEDERATED_BTICK);
append_ident(&query, (*field)->field_name,
strlen((*field)->field_name), ident_quote_char);
query.append(FEDERATED_COMMA);
}
query.length(query.length()- strlen(FEDERATED_COMMA));
query.append(FEDERATED_FROM);
query.append(FEDERATED_BTICK);
tmp_share.table_name_length= strlen(tmp_share.table_name);
append_ident(&query, tmp_share.table_name,
tmp_share.table_name_length, ident_quote_char);
if (!(share= (FEDERATED_SHARE *)
my_multi_malloc(MYF(MY_WME),
&share, sizeof(*share),
&select_query,
query.length()+table->s->connect_string.length+1,
&select_query, query.length()+1,
NullS)))
goto error;
memcpy(share, &tmp_share, sizeof(tmp_share));
memcpy(select_query, query.ptr(), query.length()+1);
share->table_name_length= strlen(share->table_name);
/* TODO: share->table_name to LEX_STRING object */
query.append(share->table_name, share->table_name_length);
query.append(FEDERATED_BTICK);
share->select_query= select_query;
strmov(share->select_query, query.ptr());
share->use_count= 0;
DBUG_PRINT("info",
("share->select_query %s", share->select_query));
@ -1467,6 +1511,8 @@ int ha_federated::open(const char *name, int mode, uint test_if_locked)
table->s->reclength);
DBUG_PRINT("info", ("ref_length: %u", ref_length));
reset();
DBUG_RETURN(0);
}
@ -1579,10 +1625,14 @@ int ha_federated::write_row(byte *buf)
/*
start both our field and field values strings
*/
insert_string.append(FEDERATED_INSERT);
insert_string.append(FEDERATED_BTICK);
insert_string.append(share->table_name, share->table_name_length);
insert_string.append(FEDERATED_BTICK);
if (replace_duplicates)
insert_string.append(STRING_WITH_LEN("REPLACE INTO "));
else if (ignore_duplicates)
insert_string.append(STRING_WITH_LEN("INSERT IGNORE INTO "));
else
insert_string.append(STRING_WITH_LEN("INSERT INTO "));
append_ident(&insert_string, share->table_name,
share->table_name_length, ident_quote_char);
insert_string.append(FEDERATED_OPENPAREN);
values_string.append(FEDERATED_VALUES);
@ -1599,14 +1649,15 @@ int ha_federated::write_row(byte *buf)
else
{
(*field)->val_str(&insert_field_value_string);
values_string.append('\'');
values_string.append(value_quote_char);
insert_field_value_string.print(&values_string);
values_string.append('\'');
values_string.append(value_quote_char);
insert_field_value_string.length(0);
}
/* append the field name */
insert_string.append((*field)->field_name);
append_ident(&insert_string, (*field)->field_name,
strlen((*field)->field_name), ident_quote_char);
/* append the value */
values_string.append(insert_field_value_string);
@ -1688,9 +1739,8 @@ int ha_federated::optimize(THD* thd, HA_CHECK_OPT* check_opt)
query.set_charset(system_charset_info);
query.append(FEDERATED_OPTIMIZE);
query.append(FEDERATED_BTICK);
query.append(share->table_name, share->table_name_length);
query.append(FEDERATED_BTICK);
append_ident(&query, share->table_name, share->table_name_length,
ident_quote_char);
if (mysql_real_query(mysql, query.ptr(), query.length()))
{
@ -1711,9 +1761,8 @@ int ha_federated::repair(THD* thd, HA_CHECK_OPT* check_opt)
query.set_charset(system_charset_info);
query.append(FEDERATED_REPAIR);
query.append(FEDERATED_BTICK);
query.append(share->table_name, share->table_name_length);
query.append(FEDERATED_BTICK);
append_ident(&query, share->table_name, share->table_name_length,
ident_quote_char);
if (check_opt->flags & T_QUICK)
query.append(FEDERATED_QUICK);
if (check_opt->flags & T_EXTEND)
@ -1788,10 +1837,12 @@ int ha_federated::update_row(const byte *old_data, byte *new_data)
update_string.length(0);
where_string.length(0);
update_string.append(FEDERATED_UPDATE);
update_string.append(FEDERATED_BTICK);
update_string.append(share->table_name);
update_string.append(FEDERATED_BTICK);
if (ignore_duplicates)
update_string.append(STRING_WITH_LEN("UPDATE IGNORE "));
else
update_string.append(STRING_WITH_LEN("UPDATE "));
append_ident(&update_string, share->table_name,
share->table_name_length, ident_quote_char);
update_string.append(FEDERATED_SET);
/*
@ -1806,8 +1857,11 @@ int ha_federated::update_row(const byte *old_data, byte *new_data)
for (Field **field= table->field; *field; field++)
{
where_string.append((*field)->field_name);
update_string.append((*field)->field_name);
uint field_name_length= strlen((*field)->field_name);
append_ident(&where_string, (*field)->field_name, field_name_length,
ident_quote_char);
append_ident(&update_string, (*field)->field_name, field_name_length,
ident_quote_char);
update_string.append(FEDERATED_EQ);
if ((*field)->is_null())
@ -1816,9 +1870,9 @@ int ha_federated::update_row(const byte *old_data, byte *new_data)
{
/* otherwise = */
(*field)->val_str(&field_value);
update_string.append('\'');
update_string.append(value_quote_char);
field_value.print(&update_string);
update_string.append('\'');
update_string.append(value_quote_char);
field_value.length(0);
}
@ -1829,9 +1883,9 @@ int ha_federated::update_row(const byte *old_data, byte *new_data)
where_string.append(FEDERATED_EQ);
(*field)->val_str(&field_value,
(char*) (old_data + (*field)->offset()));
where_string.append('\'');
where_string.append(value_quote_char);
field_value.print(&where_string);
where_string.append('\'');
where_string.append(value_quote_char);
field_value.length(0);
}
@ -1888,16 +1942,16 @@ int ha_federated::delete_row(const byte *buf)
delete_string.length(0);
delete_string.append(FEDERATED_DELETE);
delete_string.append(FEDERATED_FROM);
delete_string.append(FEDERATED_BTICK);
delete_string.append(share->table_name);
delete_string.append(FEDERATED_BTICK);
append_ident(&delete_string, share->table_name,
share->table_name_length, ident_quote_char);
delete_string.append(FEDERATED_WHERE);
for (Field **field= table->field; *field; field++)
{
Field *cur_field= *field;
data_string.length(0);
delete_string.append(cur_field->field_name);
append_ident(&delete_string, (*field)->field_name,
strlen((*field)->field_name), ident_quote_char);
if (cur_field->is_null())
{
@ -1907,9 +1961,9 @@ int ha_federated::delete_row(const byte *buf)
{
delete_string.append(FEDERATED_EQ);
cur_field->val_str(&data_string);
delete_string.append('\'');
delete_string.append(value_quote_char);
data_string.print(&delete_string);
delete_string.append('\'');
delete_string.append(value_quote_char);
}
delete_string.append(FEDERATED_AND);
@ -2411,14 +2465,8 @@ int ha_federated::info(uint flag)
{
status_query_string.length(0);
status_query_string.append(FEDERATED_INFO);
status_query_string.append(FEDERATED_SQUOTE);
escape_string_for_mysql(&my_charset_bin, (char *)escaped_table_name,
sizeof(escaped_table_name),
share->table_name,
share->table_name_length);
status_query_string.append(escaped_table_name);
status_query_string.append(FEDERATED_SQUOTE);
append_ident(&status_query_string, share->table_name,
share->table_name_length, value_quote_char);
if (mysql_real_query(mysql, status_query_string.ptr(),
status_query_string.length()))
@ -2484,6 +2532,42 @@ error:
}
/**
@brief Handles extra signals from MySQL server
@param[in] operation Hint for storage engine
@return Operation Status
@retval 0 OK
*/
int ha_federated::extra(ha_extra_function operation)
{
DBUG_ENTER("ha_federated::extra");
switch (operation) {
case HA_EXTRA_IGNORE_DUP_KEY:
ignore_duplicates= TRUE;
break;
case HA_EXTRA_NO_IGNORE_DUP_KEY:
ignore_duplicates= FALSE;
break;
case HA_EXTRA_WRITE_CAN_REPLACE:
replace_duplicates= TRUE;
break;
case HA_EXTRA_WRITE_CANNOT_REPLACE:
replace_duplicates= FALSE;
break;
case HA_EXTRA_RESET:
ignore_duplicates= FALSE;
replace_duplicates= FALSE;
break;
default:
/* do nothing */
DBUG_PRINT("info",("unhandled operation: %d", (uint) operation));
}
DBUG_RETURN(0);
}
/*
Used to delete all rows in a table. Both for cases of truncate and
for cases where the optimizer realizes that all rows will be
@ -2506,9 +2590,8 @@ int ha_federated::delete_all_rows()
query.set_charset(system_charset_info);
query.append(FEDERATED_TRUNCATE);
query.append(FEDERATED_BTICK);
query.append(share->table_name);
query.append(FEDERATED_BTICK);
append_ident(&query, share->table_name, share->table_name_length,
ident_quote_char);
/*
TRUNCATE won't return anything in mysql_affected_rows

2
sql/ha_federated.h
View file

@ -157,6 +157,7 @@ class ha_federated: public handler
MYSQL_ROW_OFFSET current_position; // Current position used by ::position()
int remote_error_number;
char remote_error_buf[FEDERATED_QUERY_BUFFER_SIZE];
bool ignore_duplicates, replace_duplicates;
private:
/*
@ -284,6 +285,7 @@ public:
int rnd_pos(byte *buf, byte *pos); //required
void position(const byte *record); //required
int info(uint); //required
int extra(ha_extra_function operation);
void update_auto_increment(void);
int repair(THD* thd, HA_CHECK_OPT* check_opt);