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Merge mysql.com:/home/dlenev/src/mysql-5.0-bg13525

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into  mysql.com:/home/dlenev/src/mysql-5.1-merges2


client/mysqltest.c:
  Auto merged
include/my_global.h:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/heap.result:
  Auto merged
mysql-test/r/merge.result:
  Auto merged
mysql-test/r/ps.result:
  Auto merged
mysql-test/r/trigger.result:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/ps.test:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
mysql-test/t/view.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/ha_myisammrg.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
storage/myisammrg/myrg_queue.c:
  Auto merged
sql/sql_rename.cc:
  Manual merge.
sql/sql_trigger.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
This commit is contained in:
unknown 2006-02-27 20:00:07 +03:00
commit e54ecf09be
25 changed files with 698 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
client/mysqltest.c
View File

@ -3662,8 +3662,10 @@ DYNAMIC_ARRAY patterns;
static void init_win_path_patterns()
{
/* List of string patterns to match in order to find paths */
const char* paths[] = { "$MYSQL_TEST_DIR", "./test/", 0 };
int num_paths= 2;
const char* paths[] = { "$MYSQL_TEST_DIR",
"$MYSQL_TMP_DIR",
"./test/", 0 };
int num_paths= 3;
int i;
char* p;

9
include/my_global.h
View File

@ -43,6 +43,15 @@
#define HAVE_ERRNO_AS_DEFINE
#endif /* __CYGWIN__ */
#if defined(__QNXNTO__) && !defined(FD_SETSIZE)
#define FD_SETSIZE 1024 /* Max number of file descriptor bits in
fd_set, used when calling 'select'
Must be defined before including
"sys/select.h" and "sys/time.h"
*/
#endif
/* to make command line shorter we'll define USE_PRAGMA_INTERFACE here */
#ifdef USE_PRAGMA_IMPLEMENTATION
#define USE_PRAGMA_INTERFACE

3
mysql-test/mysql-test-run.pl
View File

@ -1156,6 +1156,7 @@ sub environment_setup () {
$ENV{'USE_RUNNING_SERVER'}= $glob_use_running_server;
$ENV{'MYSQL_TEST_DIR'}= $glob_mysql_test_dir;
$ENV{'MYSQLTEST_VARDIR'}= $opt_vardir;
$ENV{'MYSQL_TMP_DIR'}= $opt_tmpdir;
$ENV{'MASTER_MYSOCK'}= $master->[0]->{'path_mysock'};
$ENV{'MASTER_MYSOCK1'}= $master->[1]->{'path_mysock'};
$ENV{'MASTER_MYPORT'}= $master->[0]->{'path_myport'};
@ -2876,7 +2877,7 @@ sub run_mysqltest ($) {
if ( $opt_debug )
{
$cmdline_mysqlcheck .=
" --debug=d:t:A,$opt_vardir_trace/log/mysqldump.trace";
" --debug=d:t:A,$opt_vardir_trace/log/mysqlcheck.trace";
}
my $cmdline_mysqldump= "$exe_mysqldump --no-defaults -uroot " .

1
mysql-test/mysql-test-run.sh
View File

@ -202,6 +202,7 @@ SYST=0
REALT=0
FAST_START=""
MYSQL_TMP_DIR=$MYSQL_TEST_DIR/var/tmp
export MYSQL_TMP_DIR
# Use a relative path for where the slave will find the dumps
# generated by "LOAD DATA" on the master. The path is relative

22
mysql-test/r/index_merge.result
View File

@ -402,3 +402,25 @@ explain select * from t1 force index(cola,colb) WHERE cola = 'foo' AND colb = 'b
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge cola,colb cola,colb 3,3 NULL 24 Using intersect(cola,colb); Using where
drop table t1;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (
a int, b int,
filler1 char(200), filler2 char(200),
key(a),key(b)
);
insert into t1 select @v:= A.a, @v, 't1', 'filler2' from t0 A, t0 B, t0 C;
create table t2 like t1;
create table t3 (
a int, b int,
filler1 char(200), filler2 char(200),
key(a),key(b)
) engine=merge union=(t1,t2);
explain select * from t1 where a=1 and b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge a,b a,b 5,5 NULL # Using intersect(a,b); Using where
explain select * from t3 where a=1 and b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 index_merge a,b a,b 5,5 NULL # Using intersect(a,b); Using where
drop table t3;
drop table t0, t1, t2;

2
mysql-test/r/merge.result
View File

@ -56,8 +56,8 @@ a b
4 Testing
5 table
5 table
6 t1
6 t2
6 t1
7 Testing
7 Testing
8 table

14
mysql-test/r/ps.result
View File

@ -859,6 +859,20 @@ count(*)
5
deallocate prepare stmt;
drop table t1;
prepare stmt from 'create table t1 (a varchar(10) character set utf8)';
execute stmt;
insert into t1 (a) values (repeat('a', 20));
select length(a) from t1;
length(a)
10
drop table t1;
execute stmt;
insert into t1 (a) values (repeat('a', 20));
select length(a) from t1;
length(a)
10
drop table t1;
deallocate prepare stmt;
create table t1 (id int);
prepare ins_call from "insert into t1 (id) values (1)";
execute ins_call;

103
mysql-test/r/trigger.result
View File

@ -1,4 +1,4 @@
drop table if exists t1, t2, t3;
drop table if exists t1, t2, t3, t4;
drop view if exists v1;
drop database if exists mysqltest;
drop function if exists f1;
@ -785,6 +785,107 @@ create trigger test.t1_bi before insert on t1 for each row set @a:=0;
ERROR 3D000: No database selected
drop trigger t1_bi;
ERROR 3D000: No database selected
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
insert into t1 values (101);
select @a;
@a
101
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t1 set @a:=new.id
rename table t1 to t2;
insert into t2 values (102);
select @a;
@a
102
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t2 set @a:=new.id
alter table t2 rename to t3;
insert into t3 values (103);
select @a;
@a
103
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t3 set @a:=new.id
alter table t3 rename to t4, add column val int default 0;
insert into t4 values (104, 1);
select @a;
@a
104
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t4 set @a:=new.id
drop trigger t1_bi;
drop table t4;
create database mysqltest;
use mysqltest;
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
insert into t1 values (101);
select @a;
@a
101
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
trigger_schema trigger_name event_object_schema event_object_table action_statement
mysqltest t1_bi mysqltest t1 set @a:=new.id
rename table t1 to test.t2;
ERROR HY000: Trigger in wrong schema
insert into t1 values (102);
select @a;
@a
102
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
trigger_schema trigger_name event_object_schema event_object_table action_statement
mysqltest t1_bi mysqltest t1 set @a:=new.id
drop trigger test.t1_bi;
ERROR HY000: Trigger does not exist
drop trigger t1_bi;
drop table t1;
drop database mysqltest;
use test;
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
create trigger t1_ai after insert on t1 for each row set @b:=new.id;
insert into t1 values (101);
select @a, @b;
@a @b
101 101
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t1 set @a:=new.id
test t1_ai test t1 set @b:=new.id
rename table t1 to t2;
ERROR HY000: Can't create/write to file './test/t1_ai.TRN~' (Errcode: 13)
insert into t1 values (102);
select @a, @b;
@a @b
102 102
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
trigger_schema trigger_name event_object_schema event_object_table action_statement
test t1_bi test t1 set @a:=new.id
test t1_ai test t1 set @b:=new.id
drop trigger t1_bi;
drop trigger t1_ai;
drop table t1;
create table t1 (i int);
create trigger t1_bi before insert on t1 for each row return 0;
ERROR 42000: RETURN is only allowed in a FUNCTION

10
mysql-test/r/view.result
View File

@ -2529,3 +2529,13 @@ Warnings:
Warning 1052 Column 'x' in group statement is ambiguous
DROP VIEW v1;
DROP TABLE t1;
drop table if exists t1;
drop view if exists v1;
create table t1 (id int);
create view v1 as select * from t1;
drop table t1;
show create view v1;
drop view v1;
//
View Create View
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select sql_no_cache `test`.`t1`.`id` AS `id` from `t1`

26
mysql-test/t/index_merge.test
View File

@ -357,3 +357,29 @@ explain select * from t1 WHERE cola = 'foo' AND colb = 'bar';
explain select * from t1 force index(cola,colb) WHERE cola = 'foo' AND colb = 'bar';
drop table t1;
#
# BUG#17314: Index_merge/intersection not choosen by the optimizer for MERGE tables
#
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (
a int, b int,
filler1 char(200), filler2 char(200),
key(a),key(b)
);
insert into t1 select @v:= A.a, @v, 't1', 'filler2' from t0 A, t0 B, t0 C;
create table t2 like t1;
create table t3 (
a int, b int,
filler1 char(200), filler2 char(200),
key(a),key(b)
) engine=merge union=(t1,t2);
--replace_column 9 #
explain select * from t1 where a=1 and b=1;
--replace_column 9 #
explain select * from t3 where a=1 and b=1;
drop table t3;
drop table t0, t1, t2;

21
mysql-test/t/ps.test
View File

@ -900,6 +900,27 @@ execute stmt using @like;
deallocate prepare stmt;
drop table t1;
#
# Bug#13134 "Length of VARCHAR() utf8 column is increasing when table is
# recreated with PS/SP"
#
prepare stmt from 'create table t1 (a varchar(10) character set utf8)';
execute stmt;
--disable_warnings
insert into t1 (a) values (repeat('a', 20));
--enable_warnings
select length(a) from t1;
drop table t1;
execute stmt;
--disable_warnings
insert into t1 (a) values (repeat('a', 20));
--enable_warnings
# Check that the data is truncated to the same length
select length(a) from t1;
drop table t1;
deallocate prepare stmt;
# End of 4.1 tests
#

87
mysql-test/t/trigger.test
View File

@ -3,7 +3,7 @@
#
--disable_warnings
drop table if exists t1, t2, t3;
drop table if exists t1, t2, t3, t4;
drop view if exists v1;
drop database if exists mysqltest;
drop function if exists f1;
@ -959,6 +959,91 @@ create trigger test.t1_bi before insert on t1 for each row set @a:=0;
drop trigger t1_bi;
connection default;
#
# Test for bug #13525 "Rename table does not keep info of triggers"
#
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
insert into t1 values (101);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
rename table t1 to t2;
# Trigger should work after rename
insert into t2 values (102);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
# Let us check that the same works for simple ALTER TABLE ... RENAME
alter table t2 rename to t3;
insert into t3 values (103);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
# And for more complex ALTER TABLE
alter table t3 rename to t4, add column val int default 0;
insert into t4 values (104, 1);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
# .TRN file should be updated with new table name
drop trigger t1_bi;
drop table t4;
# Rename between different databases if triggers exist should fail
create database mysqltest;
use mysqltest;
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
insert into t1 values (101);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
--error ER_TRG_IN_WRONG_SCHEMA
rename table t1 to test.t2;
insert into t1 values (102);
select @a;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
# There should be no fantom .TRN files
--error ER_TRG_DOES_NOT_EXIST
drop trigger test.t1_bi;
drop trigger t1_bi;
drop table t1;
drop database mysqltest;
use test;
# And now let us check that the properly handle rename if there is some
# error during it (that we rollback such renames completely).
create table t1 (id int);
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
create trigger t1_ai after insert on t1 for each row set @b:=new.id;
insert into t1 values (101);
select @a, @b;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
# Trick which makes update of second .TRN file impossible
system echo dummy >var/master-data/test/t1_ai.TRN~;
system chmod 000 var/master-data/test/t1_ai.TRN~;
--error 1
rename table t1 to t2;
# 't1' should be still there and triggers should work correctly
insert into t1 values (102);
select @a, @b;
select trigger_schema, trigger_name, event_object_schema,
event_object_table, action_statement from information_schema.triggers
where event_object_schema = 'test';
system chmod 600 var/master-data/test/t1_ai.TRN;
# Let us check that updates to .TRN files were rolled back too
drop trigger t1_bi;
drop trigger t1_ai;
drop table t1;
# Test for bug #16829 "Firing trigger with RETURN crashes the server"
# RETURN is not supposed to be used anywhere except functions, so error
# should be returned when one attempts to create trigger with RETURN.

15
mysql-test/t/view.test
View File

@ -2375,3 +2375,18 @@ SELECT IF(x IS NULL, 'blank', 'not blank') AS x FROM v1 GROUP BY x;
DROP VIEW v1;
DROP TABLE t1;
#
# BUG#15943: mysql_next_result hangs on invalid SHOW CREATE VIEW
#
delimiter //;
drop table if exists t1;
drop view if exists v1;
create table t1 (id int);
create view v1 as select * from t1;
drop table t1;
show create view v1;
drop view v1;
//
delimiter ;//

9
sql/field.cc
View File

@ -8297,13 +8297,11 @@ void Field_bit_as_char::sql_type(String &res) const
create_field::create_length_to_internal_length()
DESCRIPTION
Convert create_field::length from number of characters to number of bytes,
save original value in chars_length.
Convert create_field::length from number of characters to number of bytes.
*/
void create_field::create_length_to_internal_length(void)
{
chars_length= length;
switch (sql_type) {
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
@ -8355,7 +8353,7 @@ void create_field::init_for_tmp_table(enum_field_types sql_type_arg,
{
field_name= "";
sql_type= sql_type_arg;
length= length_arg;;
char_length= length= length_arg;;
unireg_check= Field::NONE;
interval= 0;
charset= &my_charset_bin;
@ -8683,6 +8681,8 @@ bool create_field::init(THD *thd, char *fld_name, enum_field_types fld_type,
case FIELD_TYPE_DECIMAL:
DBUG_ASSERT(0); /* Was obsolete */
}
/* Remember the value of length */
char_length= length;
if (!(flags & BLOB_FLAG) &&
((length > max_field_charlength && fld_type != FIELD_TYPE_SET &&
@ -9023,6 +9023,7 @@ create_field::create_field(Field *old_field,Field *orig_field)
else
interval=0;
def=0;
char_length= length;
if (!(flags & (NO_DEFAULT_VALUE_FLAG | BLOB_FLAG)) &&
old_field->ptr && orig_field &&

5
sql/field.h
View File

@ -1410,9 +1410,10 @@ public:
*/
ulong length;
/*
The value of 'length' before a call to create_length_to_internal_length
The value of `length' as set by parser: is the number of characters
for most of the types, or of bytes for BLOBs or numeric types.
*/
uint32 chars_length;
uint32 char_length;
uint decimals, flags, pack_length, key_length;
Field::utype unireg_check;
TYPELIB *interval; // Which interval to use

22
sql/ha_myisammrg.cc
View File

@ -308,7 +308,27 @@ void ha_myisammrg::info(uint flag)
table->s->keys_in_use.set_prefix(table->s->keys);
table->s->db_options_in_use= info.options;
mean_rec_length= info.reclength;
block_size=0;
/*
The handler::block_size is used all over the code in index scan cost
calculations. It is used to get number of disk seeks required to
retrieve a number of index tuples.
If the merge table has N underlying tables, then (assuming underlying
tables have equal size, the only "simple" approach we can use)
retrieving X index records from a merge table will require N times more
disk seeks compared to doing the same on a MyISAM table with equal
number of records.
In the edge case (file_tables > myisam_block_size) we'll get
block_size==0, and index calculation code will act as if we need one
disk seek to retrieve one index tuple.
TODO: In 5.2 index scan cost calculation will be factored out into a
virtual function in class handler and we'll be able to remove this hack.
*/
block_size= 0;
if (file->tables)
block_size= myisam_block_size / file->tables;
update_time=0;
#if SIZEOF_OFF_T > 4
ref_length=6; // Should be big enough

3
sql/sql_base.cc
View File

@ -4416,7 +4416,6 @@ mark_common_columns(THD *thd, TABLE_LIST *table_ref_1, TABLE_LIST *table_ref_2,
{
Field_iterator_table_ref it_1, it_2;
Natural_join_column *nj_col_1, *nj_col_2;
const char *field_name_1;
Query_arena *arena, backup;
bool add_columns= TRUE;
bool result= TRUE;
@ -4449,6 +4448,7 @@ mark_common_columns(THD *thd, TABLE_LIST *table_ref_1, TABLE_LIST *table_ref_2,
{
bool is_created_1;
bool found= FALSE;
const char *field_name_1;
if (!(nj_col_1= it_1.get_or_create_column_ref(&is_created_1)))
goto err;
field_name_1= nj_col_1->name();
@ -4649,7 +4649,6 @@ store_natural_using_join_columns(THD *thd, TABLE_LIST *natural_using_join,
{
Field_iterator_table_ref it_1, it_2;
Natural_join_column *nj_col_1, *nj_col_2;
bool is_created;
Query_arena *arena, backup;
bool result= TRUE;
List<Natural_join_column> *non_join_columns;

28
sql/sql_rename.cc
View File

@ -19,6 +19,7 @@
*/
#include "mysql_priv.h"
#include "sql_trigger.h"
static TABLE_LIST *rename_tables(THD *thd, TABLE_LIST *table_list,
@ -173,9 +174,30 @@ rename_tables(THD *thd, TABLE_LIST *table_list, bool skip_error)
if (table_type == DB_TYPE_UNKNOWN)
my_error(ER_FILE_NOT_FOUND, MYF(0), name, my_errno);
else
rc= mysql_rename_table(ha_resolve_by_legacy_type(thd, table_type),
ren_table->db, old_alias,
new_table->db, new_alias);
{
if (!(rc= mysql_rename_table(ha_resolve_by_legacy_type(thd,
table_type),
ren_table->db, old_alias,
new_table->db, new_alias)))
{
if ((rc= Table_triggers_list::change_table_name(thd, ren_table->db,
old_alias,
new_table->db,
new_alias)))
{
/*
We've succeeded in renaming table's .frm and in updating
corresponding handler data, but have failed to update table's
triggers appropriately. So let us revert operations on .frm
and handler's data and report about failure to rename table.
*/
(void) mysql_rename_table(ha_resolve_by_legacy_type(thd,
table_type),
new_table->db, new_alias,
ren_table->db, old_alias);
}
}
}
break;
}
case FRMTYPE_VIEW:

11
sql/sql_select.h
View File

@ -176,7 +176,9 @@ typedef struct st_rollup
class JOIN :public Sql_alloc
{
public:
JOIN(const JOIN &rhs); /* not implemented */
JOIN& operator=(const JOIN &rhs); /* not implemented */
public:
JOIN_TAB *join_tab,**best_ref;
JOIN_TAB **map2table; // mapping between table indexes and JOIN_TABs
JOIN_TAB *join_tab_save; // saved join_tab for subquery reexecution
@ -288,13 +290,6 @@ class JOIN :public Sql_alloc
init(thd_arg, fields_arg, select_options_arg, result_arg);
}
JOIN(JOIN &join)
:Sql_alloc(), fields_list(join.fields_list)
{
init(join.thd, join.fields_list, join.select_options,
join.result);
}
void init(THD *thd_arg, List<Item> &fields_arg, ulonglong select_options_arg,
select_result *result_arg)
{

3
sql/sql_show.cc
View File

@ -513,12 +513,15 @@ mysqld_show_create(THD *thd, TABLE_LIST *table_list)
{
if (!table_list->view || thd->net.last_errno != ER_VIEW_INVALID)
DBUG_RETURN(TRUE);
/*
Clear all messages with 'error' level status and
issue a warning with 'warning' level status in
case of invalid view and last error is ER_VIEW_INVALID
*/
mysql_reset_errors(thd, true);
thd->clear_error();
push_warning_printf(thd,MYSQL_ERROR::WARN_LEVEL_WARN,
ER_VIEW_INVALID,
ER(ER_VIEW_INVALID),

21
sql/sql_table.cc
View File

@ -1127,6 +1127,12 @@ static int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
{
CHARSET_INFO *save_cs;
/*
Initialize length from its original value (number of characters),
which was set in the parser. This is necessary if we're
executing a prepared statement for the second time.
*/
sql_field->length= sql_field->char_length;
if (!sql_field->charset)
sql_field->charset= create_info->default_table_charset;
/*
@ -1311,7 +1317,7 @@ static int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
sql_field->charset= (dup_field->charset ?
dup_field->charset :
create_info->default_table_charset);
sql_field->length= dup_field->chars_length;
sql_field->length= dup_field->char_length;
sql_field->pack_length= dup_field->pack_length;
sql_field->key_length= dup_field->key_length;
sql_field->create_length_to_internal_length();
@ -4031,6 +4037,13 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
close_cached_table(thd, table);
if (mysql_rename_table(old_db_type,db,table_name,new_db,new_alias))
error= -1;
else if (Table_triggers_list::change_table_name(thd, db, table_name,
new_db, new_alias))
{
VOID(mysql_rename_table(old_db_type, new_db, new_alias, db,
table_name));
error= -1;
}
}
VOID(pthread_mutex_unlock(&LOCK_open));
}
@ -4933,7 +4946,11 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
VOID(quick_rm_table(new_db_type,new_db,tmp_name));
}
else if (mysql_rename_table(new_db_type,new_db,tmp_name,new_db,
new_alias))
new_alias) ||
(new_name != table_name || new_db != db) && // we also do rename
Table_triggers_list::change_table_name(thd, db, table_name,
new_db, new_alias))
{ // Try to get everything back
error=1;
VOID(quick_rm_table(new_db_type,new_db,new_alias));

286
sql/sql_trigger.cc
View File

@ -65,7 +65,6 @@ File_option sql_modes_parameters=
*/
static const int TRG_NUM_REQUIRED_PARAMETERS= 4;
static const int TRG_MAX_VERSIONS= 3;
/*
Structure representing contents of .TRN file which are used to support
@ -318,8 +317,7 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
{
LEX *lex= thd->lex;
TABLE *table= tables->table;
char file_buff[FN_REFLEN], trigname_buff[FN_REFLEN],
trigname_path[FN_REFLEN];
char file_buff[FN_REFLEN], trigname_buff[FN_REFLEN];
LEX_STRING file, trigname_file;
LEX_STRING *trg_def, *name;
ulonglong *trg_sql_mode;
@ -472,12 +470,11 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
definer_host->str, NullS) - trg_definer->str;
if (!sql_create_definition_file(NULL, &file, &triggers_file_type,
(gptr)this, triggers_file_parameters,
TRG_MAX_VERSIONS))
(gptr)this, triggers_file_parameters, 0))
return 0;
err_with_cleanup:
my_delete(trigname_path, MYF(MY_WME));
my_delete(trigname_buff, MYF(MY_WME));
return 1;
}
@ -497,7 +494,8 @@ err_with_cleanup:
True - error
*/
static bool rm_trigger_file(char *path, char *db, char *table_name)
static bool rm_trigger_file(char *path, const char *db,
const char *table_name)
{
build_table_filename(path, FN_REFLEN-1, db, table_name, triggers_file_ext);
return my_delete(path, MYF(MY_WME));
@ -519,13 +517,43 @@ static bool rm_trigger_file(char *path, char *db, char *table_name)
True - error
*/
static bool rm_trigname_file(char *path, char *db, char *trigger_name)
static bool rm_trigname_file(char *path, const char *db,
const char *trigger_name)
{
build_table_filename(path, FN_REFLEN-1, db, trigger_name, trigname_file_ext);
return my_delete(path, MYF(MY_WME));
}
/*
Helper function that saves .TRG file for Table_triggers_list object.
SYNOPSIS
save_trigger_file()
triggers Table_triggers_list object for which file should be saved
db Name of database for subject table
table_name Name of subject table
RETURN VALUE
FALSE Success
TRUE Error
*/
static bool save_trigger_file(Table_triggers_list *triggers, const char *db,
const char *table_name)
{
char file_buff[FN_REFLEN];
LEX_STRING file;
file.length= build_table_filename(file_buff, FN_REFLEN-1, db, table_name,
triggers_file_ext);
file.str= file_buff;
return sql_create_definition_file(NULL, &file, &triggers_file_type,
(gptr)triggers, triggers_file_parameters,
0);
}
/*
Drop trigger for table.
@ -579,16 +607,7 @@ bool Table_triggers_list::drop_trigger(THD *thd, TABLE_LIST *tables)
}
else
{
char file_buff[FN_REFLEN];
LEX_STRING file;
file.length= build_table_filename(file_buff, FN_REFLEN-1,
tables->db, tables->table_name,
triggers_file_ext);
file.str= file_buff;
if (sql_create_definition_file(NULL, &file, &triggers_file_type,
(gptr)this, triggers_file_parameters,
TRG_MAX_VERSIONS))
if (save_trigger_file(this, tables->db, tables->table_name))
return 1;
}
@ -827,12 +846,12 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
if (!names_only && triggers->prepare_record1_accessors(table))
DBUG_RETURN(1);
char *trg_name_buff;
List_iterator_fast<ulonglong> itm(triggers->definition_modes_list);
List_iterator_fast<LEX_STRING> it_definer(triggers->definers_list);
LEX *old_lex= thd->lex, lex;
sp_rcontext *save_spcont= thd->spcont;
ulong save_sql_mode= thd->variables.sql_mode;
LEX_STRING *on_table_name;
thd->lex= &lex;
@ -898,6 +917,21 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
&table->mem_root))
goto err_with_lex_cleanup;
if (!(on_table_name= (LEX_STRING*) alloc_root(&table->mem_root,
sizeof(LEX_STRING))))
goto err_with_lex_cleanup;
*on_table_name= lex.ident;
if (triggers->on_table_names_list.push_back(on_table_name, &table->mem_root))
goto err_with_lex_cleanup;
/*
Let us check that we correctly update trigger definitions when we
rename tables with triggers.
*/
DBUG_ASSERT(!my_strcasecmp(table_alias_charset, lex.query_tables->db, db) &&
!my_strcasecmp(table_alias_charset, lex.query_tables->table_name,
table_name));
if (names_only)
{
lex_end(&lex);
@ -1063,7 +1097,7 @@ static TABLE_LIST *add_table_for_trigger(THD *thd, sp_name *trig)
lex->query_tables= 0;
lex->query_tables_last= &lex->query_tables;
DBUG_RETURN(sp_add_to_query_tables(thd, lex, trig->m_db.str,
trigname.trigger_table.str, TL_WRITE));
trigname.trigger_table.str, TL_IGNORE));
}
@ -1133,6 +1167,218 @@ end:
}
/*
Update .TRG file after renaming triggers' subject table
(change name of table in triggers' definitions).
SYNOPSIS
change_table_name_in_triggers()
thd Thread context
db_name Database of subject table
old_table_name Old subject table's name
new_table_name New subject table's name
RETURN VALUE
FALSE Success
TRUE Failure
*/
bool
Table_triggers_list::change_table_name_in_triggers(THD *thd,
const char *db_name,
LEX_STRING *old_table_name,
LEX_STRING *new_table_name)
{
char path_buff[FN_REFLEN];
LEX_STRING *def, *on_table_name, new_def;
ulonglong *sql_mode;
ulong save_sql_mode= thd->variables.sql_mode;
List_iterator_fast<LEX_STRING> it_def(definitions_list);
List_iterator_fast<LEX_STRING> it_on_table_name(on_table_names_list);
List_iterator_fast<ulonglong> it_mode(definition_modes_list);
uint on_q_table_name_len, before_on_len;
String buff;
DBUG_ASSERT(definitions_list.elements == on_table_names_list.elements &&
definitions_list.elements == definition_modes_list.elements);
while ((def= it_def++))
{
on_table_name= it_on_table_name++;
thd->variables.sql_mode= *(it_mode++);
/* Construct CREATE TRIGGER statement with new table name. */
buff.length(0);
before_on_len= on_table_name->str - def->str;
buff.append(def->str, before_on_len);
buff.append(STRING_WITH_LEN("ON "));
append_identifier(thd, &buff, new_table_name->str, new_table_name->length);
on_q_table_name_len= buff.length() - before_on_len;
buff.append(on_table_name->str + on_table_name->length,
def->length - (before_on_len + on_table_name->length));
/*
It is OK to allocate some memory on table's MEM_ROOT since this
table instance will be thrown out at the end of rename anyway.
*/
new_def.str= memdup_root(&table->mem_root, buff.ptr(), buff.length());
new_def.length= buff.length();
on_table_name->str= new_def.str + before_on_len;
on_table_name->length= on_q_table_name_len;
*def= new_def;
}
thd->variables.sql_mode= save_sql_mode;
if (thd->is_fatal_error)
return TRUE; /* OOM */
if (save_trigger_file(this, db_name, new_table_name->str))
return TRUE;
if (rm_trigger_file(path_buff, db_name, old_table_name->str))
{
(void) rm_trigger_file(path_buff, db_name, new_table_name->str);
return TRUE;
}
return FALSE;
}
/*
Iterate though Table_triggers_list::names_list list and update .TRN files
after renaming triggers' subject table.
SYNOPSIS
change_table_name_in_trignames()
db_name Database of subject table
new_table_name New subject table's name
stopper Pointer to Table_triggers_list::names_list at
which we should stop updating.
RETURN VALUE
0 Success
non-0 Failure, pointer to Table_triggers_list::names_list element
for which update failed.
*/
LEX_STRING*
Table_triggers_list::change_table_name_in_trignames(const char *db_name,
LEX_STRING *new_table_name,
LEX_STRING *stopper)
{
char trigname_buff[FN_REFLEN];
struct st_trigname trigname;
LEX_STRING trigname_file;
LEX_STRING *trigger;
List_iterator_fast<LEX_STRING> it_name(names_list);
while ((trigger= it_name++) != stopper)
{
trigname_file.length= build_table_filename(trigname_buff, FN_REFLEN-1,
db_name, trigger->str,
trigname_file_ext);
trigname_file.str= trigname_buff;
trigname.trigger_table= *new_table_name;
if (sql_create_definition_file(NULL, &trigname_file, &trigname_file_type,
(gptr)&trigname, trigname_file_parameters,
0))
return trigger;
}
return 0;
}
/*
Update .TRG and .TRN files after renaming triggers' subject table.
SYNOPSIS
change_table_name()
thd Thread context
db Old database of subject table
old_table Old name of subject table
new_db New database for subject table
new_table New name of subject table
NOTE
This method tries to leave trigger related files in consistent state,
i.e. it either will complete successfully, or will fail leaving files
in their initial state.
RETURN VALUE
FALSE Success
TRUE Error
*/
bool Table_triggers_list::change_table_name(THD *thd, const char *db,
const char *old_table,
const char *new_db,
const char *new_table)
{
TABLE table;
bool result= 0;
LEX_STRING *err_trigname;
DBUG_ENTER("change_table_name");
bzero(&table, sizeof(table));
init_alloc_root(&table.mem_root, 8192, 0);
safe_mutex_assert_owner(&LOCK_open);
if (Table_triggers_list::check_n_load(thd, db, old_table, &table, TRUE))
{
result= 1;
goto end;
}
if (table.triggers)
{
LEX_STRING_WITH_INIT old_table_name(old_table, strlen(old_table));
LEX_STRING_WITH_INIT new_table_name(new_table, strlen(new_table));
/*
Since triggers should be in the same schema as their subject tables
moving table with them between two schemas raises too many questions.
(E.g. what should happen if in new schema we already have trigger
with same name ?).
*/
if (my_strcasecmp(table_alias_charset, db, new_db))
{
my_error(ER_TRG_IN_WRONG_SCHEMA, MYF(0));
result= 1;
goto end;
}
if (table.triggers->change_table_name_in_triggers(thd, db,
&old_table_name,
&new_table_name))
{
result= 1;
goto end;
}
if ((err_trigname= table.triggers->change_table_name_in_trignames(
db, &new_table_name, 0)))
{
/*
If we were unable to update one of .TRN files properly we will
revert all changes that we have done and report about error.
We assume that we will be able to undo our changes without errors
(we can't do much if there will be an error anyway).
*/
(void) table.triggers->change_table_name_in_trignames(db,
&old_table_name,
err_trigname);
(void) table.triggers->change_table_name_in_triggers(thd, db,
&new_table_name,
&old_table_name);
result= 1;
goto end;
}
}
end:
delete table.triggers;
free_root(&table.mem_root, MYF(0));
DBUG_RETURN(result);
}
bool Table_triggers_list::process_triggers(THD *thd, trg_event_type event,
trg_action_time_type time_type,

17
sql/sql_trigger.h
View File

@ -46,6 +46,11 @@ class Table_triggers_list: public Sql_alloc
used in CREATE/DROP TRIGGER for looking up trigger by name.
*/
List<LEX_STRING> names_list;
/*
List of "ON table_name" parts in trigger definitions, used for
updating trigger definitions during RENAME TABLE.
*/
List<LEX_STRING> on_table_names_list;
/*
Key representing triggers for this table in set of all stored
routines used by statement.
@ -97,7 +102,10 @@ public:
static bool check_n_load(THD *thd, const char *db, const char *table_name,
TABLE *table, bool names_only);
static bool drop_all_triggers(THD *thd, char *db, char *table_name);
static bool change_table_name(THD *thd, const char *db,
const char *old_table,
const char *new_db,
const char *new_table);
bool has_delete_triggers()
{
return (bodies[TRG_EVENT_DELETE][TRG_ACTION_BEFORE] ||
@ -117,6 +125,13 @@ public:
private:
bool prepare_record1_accessors(TABLE *table);
LEX_STRING* change_table_name_in_trignames(const char *db_name,
LEX_STRING *new_table_name,
LEX_STRING *stopper);
bool change_table_name_in_triggers(THD *thd,
const char *db_name,
LEX_STRING *old_table_name,
LEX_STRING *new_table_name);
};
extern const LEX_STRING trg_action_time_type_names[];

14
sql/sql_yacc.yy
View File

@ -10931,7 +10931,7 @@ view_check_option:
trigger_tail:
TRIGGER_SYM remember_name sp_name trg_action_time trg_event
ON table_ident FOR_SYM EACH_SYM ROW_SYM
ON remember_name table_ident remember_end FOR_SYM EACH_SYM ROW_SYM
{
LEX *lex= Lex;
sp_head *sp;
@ -10948,6 +10948,8 @@ trigger_tail:
sp->init(lex);
lex->trigger_definition_begin= $2;
lex->ident.str= $7;
lex->ident.length= $9 - $7;
sp->m_type= TYPE_ENUM_TRIGGER;
lex->sphead= sp;
@ -10975,7 +10977,7 @@ trigger_tail:
sp->init_strings(YYTHD, lex, $3);
/* Restore flag if it was cleared above */
YYTHD->client_capabilities |= $<ulong_num>11;
YYTHD->client_capabilities |= $<ulong_num>13;
sp->restore_thd_mem_root(YYTHD);
if (sp->is_not_allowed_in_function("trigger"))
@ -10985,15 +10987,11 @@ trigger_tail:
We have to do it after parsing trigger body, because some of
sp_proc_stmt alternatives are not saving/restoring LEX, so
lex->query_tables can be wiped out.
QQ: What are other consequences of this?
QQ: Could we loosen lock type in certain cases ?
*/
if (!lex->select_lex.add_table_to_list(YYTHD, $7,
if (!lex->select_lex.add_table_to_list(YYTHD, $8,
(LEX_STRING*) 0,
TL_OPTION_UPDATING,
TL_WRITE))
TL_IGNORE))
YYABORT;
}
;

20
storage/myisammrg/myrg_queue.c
View File

@ -18,12 +18,26 @@
static int queue_key_cmp(void *keyseg, byte *a, byte *b)
{
MI_INFO *aa=((MYRG_TABLE *)a)->table;
MI_INFO *bb=((MYRG_TABLE *)b)->table;
MYRG_TABLE *ma= (MYRG_TABLE *)a;
MYRG_TABLE *mb= (MYRG_TABLE *)b;
MI_INFO *aa= ma->table;
MI_INFO *bb= mb->table;
uint not_used[2];
int ret= ha_key_cmp((HA_KEYSEG *)keyseg, aa->lastkey, bb->lastkey,
USE_WHOLE_KEY, SEARCH_FIND, not_used);
return ret < 0 ? -1 : ret > 0 ? 1 : 0;
if (ret < 0)
return -1;
if (ret > 0)
return 1;
/*
If index tuples have the same values, let the record with least rowid
value be "smaller", so index scans return records ordered by (keytuple,
rowid). This is used by index_merge access method, grep for ROR in
sql/opt_range.cc for details.
*/
return (ma->file_offset < mb->file_offset)? -1 : (ma->file_offset >
mb->file_offset) ? 1 : 0;
} /* queue_key_cmp */