mariadb/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;
show databases;
flush tables with read lock;
--error 1208,1223
drop database mysqltest;
unlock tables;
drop database mysqltest;
show databases;
--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);
lock tables t1 read;
create database mysqltest;
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 addconroot1;
disconnect addconroot2;
connection default;

--echo End of 5.0 tests