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Commit 3b195fd6 authored by dlenev@mockturtle.local's avatar dlenev@mockturtle.local
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Merge bk-internal.mysql.com:/home/bk/mysql-5.1-runtime 

into  mockturtle.local:/home/dlenev/src/mysql-5.1-cts-3
parents 6287c9d4 4cafc8ee
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mysql-test/r/create.result
View file @ 3b195fd6
......@@ -782,6 +782,100 @@ t1 CREATE TABLE `t1` (
`i` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 MAX_ROWS=4294967295
drop table t1;
create table t1 select * from t2;
ERROR 42S02: Table 'test.t2' doesn't exist
create table t1 select * from t1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'coalesce'
create table t1 (primary key(a)) select "b" as b;
ERROR 42000: Key column 'a' doesn't exist in table
create table t1 (a int);
create table if not exists t1 select 1 as a, 2 as b;
ERROR 21S01: Column count doesn't match value count at row 1
drop table t1;
create table t1 (primary key (a)) (select 1 as a) union all (select 1 as a);
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
create table t1 (i int);
create table t1 select 1 as i;
ERROR 42S01: Table 't1' already exists
create table if not exists t1 select 1 as i;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
i
1
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'coalesce'
select * from t1;
i
1
alter table t1 add primary key (i);
create table if not exists t1 (select 2 as i) union all (select 2 as i);
ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
select * from t1;
i
1
2
drop table t1;
create temporary table t1 (j int);
create table if not exists t1 select 1;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
j
1
drop temporary table t1;
select * from t1;
ERROR 42S02: Table 'test.t1' doesn't exist
drop table t1;
ERROR 42S02: Unknown table 't1'
create table t1 (i int);
insert into t1 values (1), (2);
lock tables t1 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
unlock tables;
create table t2 (j int);
lock tables t1 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
unlock tables;
lock table t1 read, t2 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
unlock tables;
lock table t1 read, t2 write;
create table t2 select * from t1;
ERROR 42S01: Table 't2' already exists
create table if not exists t2 select * from t1;
Warnings:
Note 1050 Table 't2' already exists
select * from t1;
i
1
2
unlock tables;
drop table t2;
lock tables t1 read;
create temporary table t2 select * from t1;
create temporary table if not exists t2 select * from t1;
Warnings:
Note 1050 Table 't2' already exists
select * from t2;
i
1
2
1
2
unlock tables;
drop table t1, t2;
create table t1 (upgrade int);
drop table t1;
End of 5.0 tests
......
mysql-test/r/create_select-big.result 0 → 100644
View file @ 3b195fd6
drop table if exists t1,t2,t3,t4,t5;
set session debug="+d,sleep_create_select_before_create";
create table t1 select 1 as i;;
create table t1 (j char(5));
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 select 1 as i;;
create table t1 select "Test" as j;
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t3 (j char(5));
create table t1 select 1 as i;;
create table t1 like t3;
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 select 1 as i;;
rename table t3 to t1;
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 select 1 as i;;
alter table t3 rename to t1;
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 select 1 as i;;
alter table t3 rename to t1, add k int;
ERROR 42S01: Table 't1' already exists
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t3;
set session debug="-d,sleep_create_select_before_create:+d,sleep_create_select_before_open";
create table t1 select 1 as i;;
drop table t1;
create table t1 select 1 as i;;
rename table t1 to t2;
drop table t2;
create table t1 select 1 as i;;
select * from t1;
i
1
drop table t1;
create table t1 select 1 as i;;
insert into t1 values (2);
select * from t1;
i
1
2
drop table t1;
set @a:=0;
create table t1 select 1 as i;;
create trigger t1_bi before insert on t1 for each row set @a:=1;
select @a;
@a
0
drop table t1;
set session debug="-d,sleep_create_select_before_open:+d,sleep_create_select_before_lock";
create table t1 select 1 as i;;
drop table t1;
create table t1 select 1 as i;;
rename table t1 to t2;
drop table t2;
create table t1 select 1 as i;;
select * from t1;
i
1
drop table t1;
create table t1 select 1 as i;;
insert into t1 values (2);
select * from t1;
i
1
2
drop table t1;
set @a:=0;
create table t1 select 1 as i;;
create trigger t1_bi before insert on t1 for each row set @a:=1;
select @a;
@a
0
drop table t1;
set session debug="-d,sleep_create_select_before_lock:+d,sleep_create_select_before_check_if_exists";
create table t1 (i int);
create table if not exists t1 select 1 as i;;
drop table t1;
Warnings:
Note 1050 Table 't1' already exists
create table t1 (i int);
set @a:=0;
create table if not exists t1 select 1 as i;;
create trigger t1_bi before insert on t1 for each row set @a:=1;
Warnings:
Note 1050 Table 't1' already exists
select @a;
@a
0
select * from t1;
i
1
drop table t1;
set session debug="-d,sleep_create_select_before_check_if_exists";
create table t2 (a int);
create table t4 (b int);
lock table t4 write;
select 1;
1
1
create table t3 as select * from t4;;
create table t1 select * from t2, t3;;
unlock tables;
select * from t1;
a b
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t3;
lock table t4 read;
select 1;
1
1
rename table t4 to t3;;
create table if not exists t1 select 1 as i from t2, t3;;
create table t5 (j int);
rename table t5 to t1;
unlock tables;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
j
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`j` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t2, t3;
mysql-test/r/trigger.result
View file @ 3b195fd6
......@@ -1414,4 +1414,39 @@ id val
DROP TRIGGER trg27006_a_insert;
DROP TRIGGER trg27006_a_update;
drop table t1,t2;
drop table if exists t1, t2, t3;
create table t1 (i int);
create trigger t1_bi before insert on t1 for each row set new.i = 7;
create trigger t1_ai after insert on t1 for each row set @a := 7;
create table t2 (j int);
insert into t2 values (1), (2);
set @a:="";
create table if not exists t1 select * from t2;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
i
7
7
select @a;
@a
7
drop trigger t1_bi;
drop trigger t1_ai;
create table t3 (isave int);
create trigger t1_bi before insert on t1 for each row insert into t3 values (new.i);
create table if not exists t1 select * from t2;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
i
7
7
1
2
select * from t3;
isave
1
2
drop table t1, t2, t3;
End of 5.0 tests
mysql-test/t/create.test
View file @ 3b195fd6
......@@ -673,6 +673,117 @@ alter table t1 max_rows=100000000000;
show create table t1;
drop table t1;
#
# Tests for errors happening at various stages of CREATE TABLES ... SELECT
#
# (Also checks that it behaves atomically in the sense that in case
# of error it is automatically dropped if it has not existed before.)
#
# Error during open_and_lock_tables() of tables
--error ER_NO_SUCH_TABLE
create table t1 select * from t2;
# Rather special error which also caught during open tables pahse
--error ER_UPDATE_TABLE_USED
create table t1 select * from t1;
# Error which happens before select_create::prepare()
--error ER_CANT_AGGREGATE_2COLLATIONS
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
# Error during table creation
--error ER_KEY_COLUMN_DOES_NOT_EXITS
create table t1 (primary key(a)) select "b" as b;
# Error in select_create::prepare() which is not related to table creation
create table t1 (a int);
--error ER_WRONG_VALUE_COUNT_ON_ROW
create table if not exists t1 select 1 as a, 2 as b;
drop table t1;
# Finally error which happens during insert
--error ER_DUP_ENTRY_WITH_KEY_NAME
create table t1 (primary key (a)) (select 1 as a) union all (select 1 as a);
# What happens if table already exists ?
create table t1 (i int);
--error ER_TABLE_EXISTS_ERROR
create table t1 select 1 as i;
create table if not exists t1 select 1 as i;
select * from t1;
# Error before select_create::prepare()
--error ER_CANT_AGGREGATE_2COLLATIONS
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
select * from t1;
# Error which happens during insertion of rows
alter table t1 add primary key (i);
--error ER_DUP_ENTRY_WITH_KEY_NAME
create table if not exists t1 (select 2 as i) union all (select 2 as i);
select * from t1;
drop table t1;
# Base vs temporary tables dillema (a.k.a. bug#24508 "Inconsistent
# results of CREATE TABLE ... SELECT when temporary table exists").
# In this situation we either have to create non-temporary table and
# insert data in it or insert data in temporary table without creation
# of permanent table. Since currently temporary tables always shadow
# permanent tables we adopt second approach.
create temporary table t1 (j int);
create table if not exists t1 select 1;
select * from t1;
drop temporary table t1;
--error ER_NO_SUCH_TABLE
select * from t1;
--error ER_BAD_TABLE_ERROR
drop table t1;
#
# CREATE TABLE ... SELECT and LOCK TABLES
#
# There is little sense in using CREATE TABLE ... SELECT under
# LOCK TABLES as it mostly does not work. At least we check that
# the server doesn't crash, hang and produces sensible errors.
# Includes test for bug #20662 "Infinite loop in CREATE TABLE
# IF NOT EXISTS ... SELECT with locked tables".
create table t1 (i int);
insert into t1 values (1), (2);
lock tables t1 read;
--error ER_TABLE_NOT_LOCKED
create table t2 select * from t1;
--error ER_TABLE_NOT_LOCKED
create table if not exists t2 select * from t1;
unlock tables;
create table t2 (j int);
lock tables t1 read;
--error ER_TABLE_NOT_LOCKED
create table t2 select * from t1;
# This should not be ever allowed as it will undermine
# lock-all-at-once approach
--error ER_TABLE_NOT_LOCKED
create table if not exists t2 select * from t1;
unlock tables;
lock table t1 read, t2 read;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
create table t2 select * from t1;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
create table if not exists t2 select * from t1;
unlock tables;
lock table t1 read, t2 write;
--error ER_TABLE_EXISTS_ERROR
create table t2 select * from t1;
# This is the only case which really works.
create table if not exists t2 select * from t1;
select * from t1;
unlock tables;
drop table t2;
# OTOH CREATE TEMPORARY TABLE ... SELECT should work
# well under LOCK TABLES.
lock tables t1 read;
create temporary table t2 select * from t1;
create temporary table if not exists t2 select * from t1;
select * from t2;
unlock tables;
drop table t1, t2;
#
# Bug#21772: can not name a column 'upgrade' when create a table
#
......@@ -715,6 +826,7 @@ INSERT INTO t2 select * from t1;
SELECT * from t2;
drop table t1,t2;
#
# Test incorrect database names
#
......
mysql-test/t/create_select-big.test 0 → 100644
View file @ 3b195fd6
# Tests for various aspects of CREATE TABLE ... SELECT implementation
#
# Note that we don't test general CREATE TABLE ... SELECT functionality here as
# it is already covered by create.test. We are more interested in extreme cases.
#
# This test takes rather long time so let us run it only in --big-test mode
--source include/big_test.inc
# We are using some debug-only features in this test
--source include/have_debug.inc
# Create auxilliary connections
connect (addconroot1, localhost, root,,);
connect (addconroot2, localhost, root,,);
connect (addconroot3, localhost, root,,);
connection default;
--disable_warnings
drop table if exists t1,t2,t3,t4,t5;
--enable_warnings
#
# Tests for concurrency problems.
#
# We introduce delays between various stages of table creation
# and check that other statements dealing with this table cannot
# interfere during those delays.
#
# What happens in situation when other statement messes with
# table to be created before it is created ?
# Concurrent CREATE TABLE
set session debug="+d,sleep_create_select_before_create";
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
create table t1 (j char(5));
connection default;
--reap
show create table t1;
drop table t1;
# Concurrent CREATE TABLE ... SELECT
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
create table t1 select "Test" as j;
connection default;
--reap
show create table t1;
drop table t1;
# Concurrent CREATE TABLE LIKE
create table t3 (j char(5));
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
create table t1 like t3;
connection default;
--reap
show create table t1;
drop table t1;
# Concurrent RENAME TABLE
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
rename table t3 to t1;
connection default;
--reap
show create table t1;
drop table t1;
# Concurrent ALTER TABLE RENAME
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
alter table t3 rename to t1;
connection default;
--reap
show create table t1;
drop table t1;
# Concurrent ALTER TABLE RENAME which also adds column
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
--error ER_TABLE_EXISTS_ERROR
alter table t3 rename to t1, add k int;
connection default;
--reap
show create table t1;
drop table t1, t3;
# What happens if other statement sneaks in after the table
# creation but before its opening ?
set session debug="-d,sleep_create_select_before_create:+d,sleep_create_select_before_open";
# Concurrent DROP TABLE
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
drop table t1;
connection default;
--reap
# Concurrent RENAME TABLE
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
rename table t1 to t2;
connection default;
--reap
drop table t2;
# Concurrent SELECT
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
select * from t1;
connection default;
--reap
drop table t1;
# Concurrent INSERT
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
insert into t1 values (2);
connection default;
--reap
select * from t1;
drop table t1;
# Concurrent CREATE TRIGGER
set @a:=0;
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
create trigger t1_bi before insert on t1 for each row set @a:=1;
connection default;
--reap
select @a;
drop table t1;
# Okay, now the same tests for the potential gap between open and lock
set session debug="-d,sleep_create_select_before_open:+d,sleep_create_select_before_lock";
# Concurrent DROP TABLE
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
drop table t1;
connection default;
--reap
# Concurrent RENAME TABLE
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
rename table t1 to t2;
connection default;
--reap
drop table t2;
# Concurrent SELECT
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
select * from t1;
connection default;
--reap
drop table t1;
# Concurrent INSERT
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
insert into t1 values (2);
connection default;
--reap
select * from t1;
drop table t1;
# Concurrent CREATE TRIGGER
set @a:=0;
--send create table t1 select 1 as i;
connection addconroot1;
--sleep 2
create trigger t1_bi before insert on t1 for each row set @a:=1;
connection default;
--reap
select @a;
drop table t1;
# Some tests for case with existing table
set session debug="-d,sleep_create_select_before_lock:+d,sleep_create_select_before_check_if_exists";
create table t1 (i int);
# Concurrent DROP TABLE
--send create table if not exists t1 select 1 as i;
connection addconroot1;
--sleep 2
drop table t1;
connection default;
--reap
# Concurrent CREATE TRIGGER
create table t1 (i int);
set @a:=0;
--send create table if not exists t1 select 1 as i;
connection addconroot1;
--sleep 2
create trigger t1_bi before insert on t1 for each row set @a:=1;
connection default;
--reap
select @a;
select * from t1;
drop table t1;
set session debug="-d,sleep_create_select_before_check_if_exists";
# Test for some details of CREATE TABLE ... SELECT implementation.
#
# We check that create placeholder is handled properly if we have
# to reopen tables in open_tables().
# This test heavily relies on current implementation of name-locking/
# table cache so it may stop working if it changes. OTOH it such problem
# will serve as warning that such changes should not be done lightly.
create table t2 (a int);
create table t4 (b int);
connection addconroot2;
lock table t4 write;
select 1;
connection addconroot1;
# Create placeholder/name-lock for t3
--send create table t3 as select * from t4;
--sleep 2
connection default;
# This statement creates placeholder for t1, then opens t2,
# then meets name-lock for t3 and then reopens all tables
--send create table t1 select * from t2, t3;
--sleep 2
connection addconroot2;
unlock tables;
connection addconroot1;
--reap
connection default;
--reap
select * from t1;
show create table t1;
drop table t1, t3;
# Now similar test which proves that we really temporarily
# remove placeholder when we reopen tables.
connection addconroot2;
lock table t4 read;
select 1;
connection addconroot1;
# Create name-lock for t3
--send rename table t4 to t3;
--sleep 2
connection default;
# This statement creates placeholder for t1, then opens t2,
# then meets name-lock for t3 and then reopens all tables
--send create table if not exists t1 select 1 as i from t2, t3;
--sleep 2
connection addconroot3;
# We should be able to take name-lock on table t1 as we should not have
# open placeholder for it at this point (otherwise it is possible to
# come-up with situation which will lead to deadlock, e.g. think of
# concurrent CREATE TABLE t1 SELECT * FROM t2 and RENAME TABLE t2 TO t1)
create table t5 (j int);
# This statement takes name-lock on t1 and therefore proves
# that there is no active open placeholder for it.
rename table t5 to t1;
connection addconroot2;
unlock tables;
connection addconroot1;
--reap
connection default;
--reap
select * from t1;
show create table t1;
drop table t1, t2, t3;
mysql-test/t/trigger.test
View file @ 3b195fd6
......@@ -1737,4 +1737,30 @@ DROP TRIGGER trg27006_a_insert;
DROP TRIGGER trg27006_a_update;
drop table t1,t2;
#
# Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
#
--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings
create table t1 (i int);
create trigger t1_bi before insert on t1 for each row set new.i = 7;
create trigger t1_ai after insert on t1 for each row set @a := 7;
create table t2 (j int);
insert into t2 values (1), (2);
set @a:="";
create table if not exists t1 select * from t2;
select * from t1;
select @a;
# Let us check that trigger that involves table also works ok.
drop trigger t1_bi;
drop trigger t1_ai;
create table t3 (isave int);
create trigger t1_bi before insert on t1 for each row insert into t3 values (new.i);
create table if not exists t1 select * from t2;
select * from t1;
select * from t3;
drop table t1, t2, t3;
--echo End of 5.0 tests
sql/lock.cc
View file @ 3b195fd6
......@@ -892,8 +892,6 @@ end:
int lock_table_name(THD *thd, TABLE_LIST *table_list, bool check_in_use)
{
TABLE *table;
TABLE_SHARE *share;
char *key_buff;
char key[MAX_DBKEY_LENGTH];
char *db= table_list->db;
uint key_length;
......@@ -921,29 +919,11 @@ int lock_table_name(THD *thd, TABLE_LIST *table_list, bool check_in_use)
}
}
}
/*
Create a table entry with the right key and with an old refresh version
Note that we must use my_multi_malloc() here as this is freed by the
table cache
*/
if (!my_multi_malloc(MYF(MY_WME | MY_ZEROFILL),
&table, sizeof(*table),
&share, sizeof(*share),
&key_buff, key_length,
NULL))
DBUG_RETURN(-1);
table->s= share;
share->set_table_cache_key(key_buff, key, key_length);
share->tmp_table= INTERNAL_TMP_TABLE; // for intern_close_table
table->in_use= thd;
table->locked_by_name=1;
table_list->table=table;
if (my_hash_insert(&open_cache, (byte*) table))
{
my_free((gptr) table,MYF(0));
if (!(table= table_cache_insert_placeholder(thd, key, key_length)))
DBUG_RETURN(-1);
}
table_list->table=table;
/* Return 1 if table is in use */
DBUG_RETURN(test(remove_table_from_cache(thd, db, table_list->table_name,
......
sql/mysql_priv.h
View file @ 3b195fd6
......@@ -794,8 +794,6 @@ check_and_unset_inject_value(int value)
#endif
uint build_table_path(char *buff, size_t bufflen, const char *db,
const char *table, const char *ext);
void write_bin_log(THD *thd, bool clear_error,
char const *query, ulong query_length);
......@@ -970,6 +968,12 @@ bool mysql_create_table(THD *thd,const char *db, const char *table_name,
List<create_field> &fields, List<Key> &keys,
bool tmp_table, uint select_field_count,
bool use_copy_create_info);
bool mysql_create_table_no_lock(THD *thd, const char *db,
const char *table_name,
HA_CREATE_INFO *create_info,
List<create_field> &fields, List<Key> &keys,
bool tmp_table, uint select_field_count,
bool use_copy_create_info);
bool mysql_alter_table(THD *thd, char *new_db, char *new_name,
HA_CREATE_INFO *create_info,
......@@ -1027,7 +1031,11 @@ TABLE_SHARE *get_cached_table_share(const char *db, const char *table_name);
TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update);
TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT* mem,
bool *refresh, uint flags);
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table);
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table_list, bool link_in);
TABLE *table_cache_insert_placeholder(THD *thd, const char *key,
uint key_length);
bool lock_table_name_if_not_cached(THD *thd, const char *db,
const char *table_name, TABLE **table);
TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
bool close_data_tables(THD *thd,const char *db, const char *table_name);
......@@ -1195,7 +1203,9 @@ void add_join_on(TABLE_LIST *b,Item *expr);
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b,List<String> *using_fields,
SELECT_LEX *lex);
bool add_proc_to_list(THD *thd, Item *item);
TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
void unlink_open_table(THD *thd, TABLE *find, bool unlock);
void drop_open_table(THD *thd, TABLE *table, const char *db_name,
const char *table_name);
void update_non_unique_table_error(TABLE_LIST *update,
const char *operation,
TABLE_LIST *duplicate);
......@@ -1630,7 +1640,7 @@ extern double log_01[32];
extern ulonglong log_10_int[20];
extern ulonglong keybuff_size;
extern ulonglong thd_startup_options;
extern ulong refresh_version, thread_id;
extern ulong thread_id;
extern ulong binlog_cache_use, binlog_cache_disk_use;
extern ulong aborted_threads,aborted_connects;
extern ulong delayed_insert_timeout;
......@@ -1773,7 +1783,7 @@ MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count,
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_LOCK 0x0001
#define MYSQL_LOCK_IGNORE_FLUSH 0x0002
#define MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN 0x0004
#define MYSQL_OPEN_IGNORE_LOCKED_TABLES 0x0008
#define MYSQL_OPEN_TEMPORARY_ONLY 0x0008
void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
......
sql/sql_base.cc
View file @ 3b195fd6
This diff is collapsed.
sql/sql_handler.cc
View file @ 3b195fd6
......@@ -682,7 +682,7 @@ int mysql_ha_flush(THD *thd, TABLE_LIST *tables, uint mode_flags,
while (*table_ptr)
{
if ((mode_flags & MYSQL_HA_FLUSH_ALL) ||
((*table_ptr)->s->version != refresh_version))
(*table_ptr)->needs_reopen_or_name_lock())
{
/* The first time it is required, lock for close_thread_table(). */
if (! did_lock && ! is_locked)
......@@ -783,15 +783,22 @@ void mysql_ha_mark_tables_for_reopen(THD *thd, TABLE *table)
safe_mutex_assert_owner(&LOCK_open);
for (; table; table= table->next)
{
TABLE_LIST *hash_tables;
if ((hash_tables= (TABLE_LIST*) hash_search(&thd->handler_tables_hash,
(byte*) table->alias,
strlen(table->alias) + 1)))
/*
Some elements in open table list, for example placeholders used for
name-locking, can have alias set to 0.
*/
if (table->alias)
{
/* Mark table as ready for reopen. */
hash_tables->table= NULL;
/* End open index/table scans. */
table->file->ha_index_or_rnd_end();
TABLE_LIST *hash_tables;
if ((hash_tables= (TABLE_LIST*) hash_search(&thd->handler_tables_hash,
(byte*) table->alias,
strlen(table->alias) + 1)))
{
/* Mark table as ready for reopen. */
hash_tables->table= NULL;
/* End open index/table scans. */
table->file->ha_index_or_rnd_end();
}
}
}
DBUG_VOID_RETURN;
......
sql/sql_insert.cc
View file @ 3b195fd6
This diff is collapsed.
sql/sql_parse.cc
View file @ 3b195fd6
......@@ -2164,7 +2164,13 @@ mysql_execute_command(THD *thd)
select_lex->options|= SELECT_NO_UNLOCK;
unit->set_limit(select_lex);
if (!(res= open_and_lock_tables(thd, select_tables)))
if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
{
lex->link_first_table_back(create_table, link_to_local);
create_table->create= TRUE;
}
if (!(res= open_and_lock_tables(thd, lex->query_tables)))
{
/*
Is table which we are changing used somewhere in other parts
......@@ -2173,6 +2179,7 @@ mysql_execute_command(THD *thd)
if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
{
TABLE_LIST *duplicate;
create_table= lex->unlink_first_table(&link_to_local);
if ((duplicate= unique_table(thd, create_table, select_tables, 0)))
{
update_non_unique_table_error(create_table, "CREATE", duplicate);
......@@ -2198,6 +2205,12 @@ mysql_execute_command(THD *thd)
}
}
/*
FIXME Temporary hack which will go away once Kostja pushes
his uber-fix for ALTER/CREATE TABLE.
*/
lex->create_info.table_existed= 0;
if ((result= new select_create(create_table,
&lex->create_info,
lex->create_list,
......@@ -2217,6 +2230,9 @@ mysql_execute_command(THD *thd)
lex->create_list.empty();
lex->key_list.empty();
}
else if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
create_table= lex->unlink_first_table(&link_to_local);
}
else
{
......
sql/sql_prepare.cc
View file @ 3b195fd6
......@@ -1492,8 +1492,21 @@ static bool mysql_test_create_table(Prepared_statement *stmt)
if (select_lex->item_list.elements)
{
if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
{
lex->link_first_table_back(create_table, link_to_local);
create_table->create= TRUE;
}
if (open_normal_and_derived_tables(stmt->thd, lex->query_tables, 0))
DBUG_RETURN(TRUE);
if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
create_table= lex->unlink_first_table(&link_to_local);
select_lex->context.resolve_in_select_list= TRUE;
res= select_like_stmt_test_with_open(stmt, tables, 0, 0);
res= select_like_stmt_test(stmt, 0, 0);
}
/* put tables back for PS rexecuting */
......
sql/sql_table.cc
View file @ 3b195fd6
This diff is collapsed.
sql/sql_trigger.cc
View file @ 3b195fd6
......@@ -279,7 +279,7 @@ bool mysql_create_or_drop_trigger(THD *thd, TABLE_LIST *tables, bool create)
/* We also don't allow creation of triggers on views. */
tables->required_type= FRMTYPE_TABLE;
if (reopen_name_locked_table(thd, tables))
if (reopen_name_locked_table(thd, tables, TRUE))
{
unlock_table_name(thd, tables);
goto end;
......
sql/sql_yacc.yy
View file @ 3b195fd6
......@@ -1567,9 +1567,7 @@ create:
lex->sql_command= SQLCOM_CREATE_TABLE;
if (!lex->select_lex.add_table_to_list(thd, $5, NULL,
TL_OPTION_UPDATING,
(using_update_log ?
TL_READ_NO_INSERT:
TL_READ)))
TL_WRITE))
MYSQL_YYABORT;
lex->create_list.empty();
lex->key_list.empty();
......
sql/table.h
View file @ 3b195fd6
......@@ -299,6 +299,8 @@ typedef struct st_table_share
} TABLE_SHARE;
extern ulong refresh_version;
/* Information for one open table */
enum index_hint_type
{
......@@ -314,8 +316,8 @@ struct st_table {
handler *file;
#ifdef NOT_YET
struct st_table *used_next, **used_prev; /* Link to used tables */
#endif
struct st_table *open_next, **open_prev; /* Link to open tables */
#endif
struct st_table *next, *prev;
THD *in_use; /* Which thread uses this */
......@@ -431,7 +433,24 @@ struct st_table {
my_bool force_index;
my_bool distinct,const_table,no_rows;
my_bool key_read, no_keyread;
my_bool locked_by_flush;
/*
Placeholder for an open table which prevents other connections
from taking name-locks on this table. Typically used with
TABLE_SHARE::version member to take an exclusive name-lock on
this table name -- a name lock that not only prevents other
threads from opening the table, but also blocks other name
locks. This is achieved by:
- setting open_placeholder to 1 - this will block other name
locks, as wait_for_locked_table_name will be forced to wait,
see table_is_used for details.
- setting version to 0 - this will force other threads to close
the instance of this table and wait (this is the same approach
as used for usual name locks).
An exclusively name-locked table currently can have no handler
object associated with it (db_stat is always 0), but please do
not rely on that.
*/
my_bool open_placeholder;
my_bool locked_by_logger;
my_bool no_replicate;
my_bool locked_by_name;
......@@ -492,7 +511,13 @@ struct st_table {
read_set= &def_read_set;
write_set= &def_write_set;
}
/* Is table open or should be treated as such by name-locking? */
inline bool is_name_opened() { return db_stat || open_placeholder; }
/*
Is this instance of the table should be reopen or represents a name-lock?
*/
inline bool needs_reopen_or_name_lock()
{ return s->version != refresh_version; }
};
enum enum_schema_table_state
......@@ -888,6 +913,12 @@ typedef struct st_table_list
used for implicit LOCK TABLES only and won't be used in real statement.
*/
bool prelocking_placeholder;
/*
This TABLE_LIST object corresponds to the table to be created
so it is possible that it does not exist (used in CREATE TABLE
... SELECT implementation).
*/
bool create;
enum enum_schema_table_state schema_table_state;
void calc_md5(char *buffer);
......@@ -895,7 +926,11 @@ typedef struct st_table_list
int view_check_option(THD *thd, bool ignore_failure);
bool setup_underlying(THD *thd);
void cleanup_items();
bool placeholder() {return derived || view || schema_table || !table; }
bool placeholder()
{
return derived || view || schema_table || create && !table->db_stat ||
!table;
}
void print(THD *thd, String *str);
bool check_single_table(st_table_list **table, table_map map,
st_table_list *view);
......
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