test-example-projects/c++_projects/280w-mysql-8.0.18/mysql-test/t/drop.test

# Initialise
--disable_warnings
drop table if exists t1;
drop database if exists mysqltest;
# If earlier test failed
drop database if exists client_test_db;
--enable_warnings

--error 1051
drop table t1;
create table t1(n int);
insert into t1 values(1);
create temporary table t1( n int);
insert into t1 values(2);
--error 1050
create table t1(n int);
drop table t1;
select * from t1;

# now test for a bug in drop database - it is important that the name
# of the table is the same as the name of the database - in the original
# code this triggered a bug
create database mysqltest;
drop database if exists mysqltest;
create database mysqltest;
create table mysqltest.mysqltest (n int);
insert into mysqltest.mysqltest values (4);
select * from mysqltest.mysqltest;
--enable_info
drop database if exists mysqltest;
--disable_info
create database mysqltest;

#
# drop many tables - bug#3891
# we'll do it in mysqltest db, to be able to use longer table names
# (tableN instead on tN)
#
use mysqltest;
--error 1051
drop table table1, table2, table3, table4, table5, table6,
table7, table8, table9, table10, table11, table12, table13,
table14, table15, table16, table17, table18, table19, table20,
table21, table22, table23, table24, table25, table26, table27,
table28;

--error 1051
drop table table1, table2, table3, table4, table5, table6,
table7, table8, table9, table10, table11, table12, table13,
table14, table15, table16, table17, table18, table19, table20,
table21, table22, table23, table24, table25, table26, table27,
table28, table29, table30;

use test;
drop database mysqltest;

# test drop/create database and FLUSH TABLES WITH READ LOCK
flush tables with read lock;
--error 1209,1223
create database mysqltest;
unlock tables;
create database mysqltest;
select schema_name from information_schema.schemata order by schema_name;
flush tables with read lock;
--error 1208,1223
drop database mysqltest;
unlock tables;
drop database mysqltest;
select schema_name from information_schema.schemata order by schema_name;
--error 1008
drop database mysqltest;

# test create table and FLUSH TABLES WITH READ LOCK
drop table t1;
flush tables with read lock;
--error 1223
create table t1(n int);
unlock tables;
create table t1(n int);
show tables;
drop table t1;

# End of 4.1 tests


#
# Test for bug#21216 "Simultaneous DROP TABLE and SHOW OPEN TABLES causes
# server to crash". Crash (caused by failed assertion in 5.0 or by null
# pointer dereference in 5.1) happened when one ran SHOW OPEN TABLES
# while concurrently doing DROP TABLE (or RENAME TABLE, CREATE TABLE LIKE
# or any other command that takes name-lock) in other connection.
# 
# Also includes test for similar bug#12212 "Crash that happens during
# removing of database name from cache" reappeared in 5.1 as bug#19403
# In its case crash happened when one concurrently executed DROP DATABASE
# and one of name-locking command.
# 
--disable_warnings
drop database if exists mysqltest;
drop table if exists t1;
--enable_warnings
create table t1 (i int);
create database mysqltest;
lock tables t1 read;
connect (addconroot1, localhost, root,,);
--send drop table t1
connect (addconroot2, localhost, root,,);
# Server should not crash in any of the following statements
--disable_result_log
show open tables;
--enable_result_log
--send drop database mysqltest
connection default;
select 1;
unlock tables;
connection addconroot1;
--reap
connection addconroot2;
--reap
disconnect addconroot2;
--source include/wait_until_disconnected.inc
connection addconroot1;
disconnect addconroot1;
--source include/wait_until_disconnected.inc
connection default;

#
# Bug#25858 Some DROP TABLE under LOCK TABLES can cause deadlocks
#

--disable_warnings
drop table if exists t1,t2;
--enable_warnings
create table t1 (a int);
create table t2 (a int);
lock table t1 read;
--error ER_TABLE_NOT_LOCKED
drop table t2;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
drop table t1;
unlock tables;
drop table t1,t2;
connect (addconroot, localhost, root,,);
connection default;
create table t1 (i int);
create table t2 (i int);
lock tables t1 read;
connection addconroot;
lock tables t2 read;
--error ER_TABLE_NOT_LOCKED
drop table t1;
connection default;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
drop table t1,t2;
disconnect addconroot;
connection default;
unlock tables;
drop table t1,t2;

--echo End of 5.0 tests


###########################################################################

--echo
#
# Bug#26703: DROP DATABASE fails if database contains a #mysql50# table with backticks
#
create database mysqltestbug26703;
use mysqltestbug26703;
create table `#mysql50#abc``def` ( id int );
--error ER_TOO_LONG_IDENT
create table `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (a int);
create table `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (a int);
create table `#mysql50#aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (a int);
--error ER_TOO_LONG_IDENT
create table `#mysql50#aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (a int);
use test;
drop database mysqltestbug26703;

--echo End of 5.1 tests

###########################################################################

--echo
--echo # --
--echo # -- Bug#37431 (DROP TABLE does not report errors correctly).
--echo # --

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

--error ER_BAD_TABLE_ERROR
DROP TABLE t1;

SHOW WARNINGS;

--echo
--echo # --
--echo # -- End of Bug#37431.
--echo # --


--echo #
--echo # Bug#54282 Crash in MDL_context::upgrade_shared_lock_to_exclusive
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 (a INT);
LOCK TABLE t1 WRITE;
--error ER_NONUNIQ_TABLE
DROP TABLE t1, t1;

UNLOCK TABLES;
DROP TABLE t1;

--echo #
--echo # BUG#34750: Print database name in Unknown Table error message
--echo #

--echo 
--echo # Test error message when droping table/view

--error ER_BAD_TABLE_ERROR
DROP TABLE table1;
--error ER_BAD_TABLE_ERROR
DROP TABLE table1,table2;
--error ER_BAD_TABLE_ERROR
DROP VIEW view1,view2,view3,view4;
--echo
DROP TABLE IF EXISTS table1;
DROP TABLE IF EXISTS table1,table2;
DROP VIEW IF EXISTS view1,view2,view3,view4;

--echo
--echo # Test error message when trigger does not find table

CREATE TABLE table1(a int);
CREATE TABLE table2(b int);

# Database name is only available (for printing) if specified in 
# the trigger definition
CREATE TRIGGER trg1 AFTER INSERT ON table1
FOR EACH ROW
  INSERT INTO table2 SELECT t.notable.*;

--error ER_BAD_TABLE_ERROR
INSERT INTO table1 VALUES (1);

DROP TABLE table1,table2;

--echo # End BUG#34750

--echo
--echo # Test Bug#19573998 DATABASE CAN NOT BE DROPPED IF IT CONTAINS .CFG FILES
--enable_connect_log 
CREATE DATABASE bug19573998;
USE bug19573998;
CREATE TABLE t1(i int);

--echo # Start FLUSH TABLES command which will create .cfg files
--echo # and block DROP DATABASE
FLUSH TABLES t1 FOR EXPORT;

--connect(con1, localhost, root, '', bug19573998)
--echo # Non-blocking (--send):
--send DROP DATABASE bug19573998

--connection default
--echo # Wait until DROP DATABASE becomes blocked on table metadata lock
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for schema metadata lock" AND
        info = "DROP DATABASE bug19573998";
--source include/wait_condition.inc
UNLOCK TABLES;

--connection con1
--echo # Wait for DROP DATABASE to complete (--reap)
--reap
--echo # DROP DATABASE completed

--disconnect con1
--source include/wait_until_disconnected.inc
--echo # Connection con1 has disconnected

--connection default
--echo # Try to manually inject a .cfg file into the database directory
CREATE DATABASE bug19573998;
let $MYSQLD_DATADIR= `select @@datadir`;
--echo # Write a dummy file into the database directory
--write_file $MYSQLD_DATADIR/bug19573998/dummy.cfg
EOF

--echo # Verify that it is possible to drop the database
DROP DATABASE bug19573998;
USE test;
--disable_connect_log
--echo # End Bug#19573998