drop database if exists hualong;
create database hualong;
use hualong;
drop table if exists r1;
drop table if exists r2;
create table hualong.r1(c1 int not null primary key, c2 int);
create table hualong.r2(a int not null primary key , b int);
rename table r1 to r2;
ERROR 42S01: Table 'r2' already exists
alter table r1 rename to r2;
ERROR 42S01: Table 'r2' already exists
rename table r1 to r3, r2 to r3;
ERROR 42S01: Table 'r3' already exists
rename table r1 to r3, r1 to r3;
ERROR 42S01: Table 'r3' already exists
rename table r1 to r3, r1 to r4;
ERROR HY000: File not exist
rename table xx to r1;
ERROR 42S01: Table 'r1' already exists
rename table xx to a.xxx;
ERROR 42000: Unknown database 'a'
rename table r1 to table1, table1 to r1;
rename table r1 to r3, r2 to r1;
rename table r3 to r3;
ERROR 42S01: Table 'r3' already exists
drop database if exists hualong2;
create database hualong2;
rename table hualong.r1 to hualong2.r1;
show tables from hualong;
Tables_in_hualong
r3
show tables from hualong2;
Tables_in_hualong2
r1
create index idx1 on hualong.r3(c1);
rename table hualong.r3 to hualong2.r2;
show tables from hualong;
Tables_in_hualong
show tables from hualong2;
Tables_in_hualong2
r1
r2
show index from hualong2.r2;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Visible	Expression
r2	0	PRIMARY	1	c1	A	NULL	NULL	NULL		BTREE	available		YES	NULL
r2	1	idx1	1	c1	A	NULL	NULL	NULL		BTREE	available		YES	NULL
rename table hualong2.r2 to hualong.r2;
show index from hualong.r2;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Visible	Expression
r2	0	PRIMARY	1	c1	A	NULL	NULL	NULL		BTREE	available		YES	NULL
r2	1	idx1	1	c1	A	NULL	NULL	NULL		BTREE	available		YES	NULL
show tables from hualong;
Tables_in_hualong
r2
rename table hualong2.r1 to hualong.r1;
rename table r1 to tmp, tmp to r1, r2 to tmp;
show tables from hualong;
Tables_in_hualong
r1
tmp
drop table hualong.r1, hualong.tmp;
drop database hualong;
drop database hualong2;