drop table if exists t1;
CREATE LOGFILE GROUP lg1
ADD UNDOFILE 'undofile.dat'
INITIAL_SIZE 1M
UNDO_BUFFER_SIZE = 1M
ENGINE=NDB;
CREATE TABLESPACE ts1
ADD DATAFILE 'datafile.dat'
USE LOGFILE GROUP lg1
INITIAL_SIZE 6M
ENGINE NDB;
create table t1 (a int column_format DYNAMIC STORAGE DISK) TABLESPACE ts1 engine NDB;
Warnings:
Warning	1478	DYNAMIC column a with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=DISK
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
drop table t1;
create table t1 (a int column_format DYNAMIC,
a1 int column_format FIXED,
b int NOT NULL column_format DYNAMIC,
b1 int NOT NULL column_format FIXED storage DISK,
c VARCHAR(100) column_format FIXED,
c1 VARCHAR(100) column_format DYNAMIC storage memory,
d VARCHAR(100) NOT NULL column_format FIXED,
d1 VARCHAR(100) NOT NULL column_format DYNAMIC,
e CHAR(100) column_format FIXED,
e1 CHAR(100) column_format DYNAMIC,
f CHAR(100) NOT NULL column_format FIXED,
f1 char(100) NOT NULL column_format DYNAMIC storage DISK,
index (b)) TABLESPACE ts1 engine NDB;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
insert into t1 (b, b1, d,d1,f,f1) values
(1,1,"1","1","1","1"),
(2,2,"2","2","2","2"),
(3,3,"3","3","3","3");
alter table t1 change column a a int column_format FIXED;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
alter table t1 change column a a int storage disk;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE DISK */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=DISK
a1 Int NULL AT=FIXED ST=MEMORY
b Int NOT NULL AT=FIXED ST=MEMORY DYNAMIC
b1 Int NOT NULL AT=FIXED ST=DISK
c Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
c1 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
d Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY
d1 Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
e Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY
e1 Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY DYNAMIC
f Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=MEMORY
f1 Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=DISK
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
alter table t1 change column a a int storage memory;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE MEMORY */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=MEMORY
a1 Int NULL AT=FIXED ST=MEMORY
b Int NOT NULL AT=FIXED ST=MEMORY DYNAMIC
b1 Int NOT NULL AT=FIXED ST=DISK
c Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
c1 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
d Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY
d1 Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
e Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY
e1 Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY DYNAMIC
f Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=MEMORY
f1 Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=DISK
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
alter table t1 change column b b int NOT NULL storage memory;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
alter table t1 add column a2 int column_format FIXED;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE MEMORY */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 STORAGE MEMORY */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  `a2` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=MEMORY
a1 Int NULL AT=FIXED ST=MEMORY
b Int NOT NULL AT=FIXED ST=MEMORY
b1 Int NOT NULL AT=FIXED ST=DISK
c Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
c1 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
d Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY
d1 Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
e Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY
e1 Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY DYNAMIC
f Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=MEMORY
f1 Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=DISK
a2 Int NULL AT=FIXED ST=MEMORY
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
alter table t1 add column c2 VARCHAR(100) column_format DYNAMIC;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE MEMORY */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 STORAGE MEMORY */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  `a2` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c2` varchar(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=MEMORY
a1 Int NULL AT=FIXED ST=MEMORY
b Int NOT NULL AT=FIXED ST=MEMORY
b1 Int NOT NULL AT=FIXED ST=DISK
c Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
c1 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
d Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY
d1 Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
e Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY
e1 Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY DYNAMIC
f Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=MEMORY
f1 Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=DISK
a2 Int NULL AT=FIXED ST=MEMORY
c2 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
alter table t1 add column c3 VARCHAR(100) column_format FIXED;
Warnings:
Warning	1478	DYNAMIC column f1 with STORAGE DISK is not supported, column will become FIXED
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE MEMORY */ DEFAULT NULL,
  `a1` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `b` int(11) NOT NULL /*!50120 STORAGE MEMORY */,
  `b1` int(11) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */,
  `c` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c1` varchar(100) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `d` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `d1` varchar(100) NOT NULL /*!50120 COLUMN_FORMAT DYNAMIC */,
  `e` char(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `e1` char(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `f` char(100) NOT NULL /*!50120 COLUMN_FORMAT FIXED */,
  `f1` char(100) NOT NULL /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT DYNAMIC */,
  `a2` int(11) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `c2` varchar(100) /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL,
  `c3` varchar(100) /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  KEY `b` (`b`)
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=MEMORY
a1 Int NULL AT=FIXED ST=MEMORY
b Int NOT NULL AT=FIXED ST=MEMORY
b1 Int NOT NULL AT=FIXED ST=DISK
c Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
c1 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
d Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY
d1 Varchar(100;latin1_swedish_ci) NOT NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
e Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY
e1 Char(100;latin1_swedish_ci) NULL AT=FIXED ST=MEMORY DYNAMIC
f Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=MEMORY
f1 Char(100;latin1_swedish_ci) NOT NULL AT=FIXED ST=DISK
a2 Int NULL AT=FIXED ST=MEMORY
c2 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY DYNAMIC
c3 Varchar(100;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
drop table t1;
create table t1 (a int storage disk column_format FIXED) TABLESPACE ts1 engine NDB;
alter table t1 change column a a int storage memory column_format DYNAMIC;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) /*!50120 STORAGE MEMORY */ /*!50120 COLUMN_FORMAT DYNAMIC */ DEFAULT NULL
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
a Int NULL AT=FIXED ST=MEMORY DYNAMIC
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
drop table t1;
create table t1 (column_format int storage disk column_format FIXED, storage int storage disk column_format FIXED) TABLESPACE ts1 engine NDB;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `column_format` int(11) /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL,
  `storage` int(11) /*!50120 STORAGE DISK */ /*!50120 COLUMN_FORMAT FIXED */ DEFAULT NULL
) /*!50100 TABLESPACE ts1 */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
Attributes:
column_format Int NULL AT=FIXED ST=DISK
storage Int NULL AT=FIXED ST=DISK
$PK Bigunsigned PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY AUTO_INCR
drop table t1;
ALTER TABLESPACE ts1
DROP DATAFILE 'datafile.dat'
ENGINE NDB;
drop tablespace ts1
engine ndb;
drop logfile group lg1
engine ndb;
CREATE TABLE t1 (
pk1 INT NOT NULL auto_increment,
c00 int not null column_format dynamic,
c01 int not null column_format dynamic,
c02 int not null column_format dynamic,
c03 int not null column_format dynamic,
c04 int not null column_format dynamic,
c05 int not null column_format dynamic,
c06 int not null column_format dynamic,
c07 int not null column_format dynamic,
c08 int not null column_format dynamic,
c09 int not null column_format dynamic,
c10 int not null column_format dynamic,
c11 int not null column_format dynamic,
c12 int not null column_format dynamic,
c13 int not null column_format dynamic,
c14 int not null column_format dynamic,
c15 int not null column_format dynamic,
c16 int not null column_format dynamic,
c17 int not null column_format dynamic,
c18 int not null column_format dynamic,
c19 int not null column_format dynamic,
primary key(pk1)
) ENGINE=ndbcluster;
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
insert into t1 values(null,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21);
select * from t1 order by 1;
pk1	c00	c01	c02	c03	c04	c05	c06	c07	c08	c09	c10	c11	c12	c13	c14	c15	c16	c17	c18	c19
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
2	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
3	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
4	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
5	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
6	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
7	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
8	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
9	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
10	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
delete from t1;
drop table t1;
