drop table if exists point, tab3;
create table point (id int primary key, c int, d varchar(10), unique c_d (c, d));
insert point values (1, 1, 'a');
insert point values (2, 2, 'b');
select * from point where id = 1 and c = 0;
id	c	d
select * from point where id < 0 and c = 1 and d = 'b';
id	c	d
select id as ident from point where id = 1;
ident
1
CREATE TABLE tab3(pk INTEGER PRIMARY KEY, col0 INTEGER, col1 FLOAT, col2 TEXT, col3 INTEGER, col4 FLOAT, col5 TEXT);
CREATE UNIQUE INDEX idx_tab3_0 ON tab3 (col4);
INSERT INTO tab3 VALUES(0,854,111.96,'mguub',711,966.36,'snwlo');
SELECT ALL * FROM tab3 WHERE col4 = 85;
pk	col0	col1	col2	col3	col4	col5
drop table if exists t;
create table t(a bigint primary key, b bigint, c bigint);
insert into t values(1, NULL, NULL), (2, NULL, 2), (3, 3, NULL), (4, 4, 4), (5, 6, 7);
select * from t where a = 1;
a	b	c
1	NULL	NULL
select * from t where a = 2;
a	b	c
2	NULL	2
select * from t where a = 3;
a	b	c
3	3	NULL
select * from t where a = 4;
a	b	c
4	4	4
select a, a, b, a, b, c, b, c, c from t where a = 5;
a	a	b	a	b	c	b	c	c
5	5	6	5	6	7	6	7	7
select b, b from t where a = 1;
b	b
NULL	NULL
drop table if exists t0, PK_S_MULTI_31_1;
CREATE TABLE t0(c1 BOOL UNIQUE);
INSERT INTO t0(c1) VALUES (-128);
INSERT INTO t0(c1) VALUES (127);
SELECT t0.c1 FROM t0 WHERE t0.c1=-129;
c1
SELECT t0.c1 FROM t0 WHERE t0.c1=-128;
c1
-128
SELECT t0.c1 FROM t0 WHERE t0.c1=128;
c1
SELECT t0.c1 FROM t0 WHERE t0.c1=127;
c1
127
CREATE TABLE `PK_S_MULTI_31_1` (`COL1` tinyint(11) NOT NULL, `COL2` tinyint(11) NOT NULL, `COL3` tinyint(11) DEFAULT NULL, PRIMARY KEY (`COL1`,`COL2`) CLUSTERED);
select * from PK_S_MULTI_31_1 where col2 = -129 and col1 = 1;
COL1	COL2	COL3
insert into PK_S_MULTI_31_1 select 1, 1, 1;
select * from PK_S_MULTI_31_1 where (col1, col2) in ((1, -129),(1, 1));
COL1	COL2	COL3
1	1	1
drop table if exists PK_1389;
CREATE TABLE `PK_1389` (   `COL1` bit(1) NOT NULL,  `COL2` varchar(20) DEFAULT NULL,  `COL3` datetime DEFAULT NULL,  `COL4` bigint(20) DEFAULT NULL,  `COL5` float DEFAULT NULL,  PRIMARY KEY (`COL1`));
insert into PK_1389 values(0, "皟钹糁泅埞礰喾皑杏灚暋蛨歜檈瓗跾咸滐梀揉", "7701-12-27 23:58:43", 4806951672419474695, -1.55652e38);
select count(1) from PK_1389 where col1 = 0x30;
count(1)
0
select count(1) from PK_1389 where col1 in ( 0x30);
count(1)
0
drop table if exists PK_1389;
set @@tidb_partition_prune_mode = 'dynamic';
set @@session.tidb_enable_list_partition = ON;
drop table if exists UK_RP16939;
CREATE TABLE UK_RP16939 (
COL1 tinyint(16) DEFAULT '108' COMMENT 'NUMERIC UNIQUE INDEX',
COL2 varchar(20) DEFAULT NULL,
COL4 datetime DEFAULT NULL,
COL3 bigint(20) DEFAULT NULL,
COL5 float DEFAULT NULL,
UNIQUE KEY UK_COL1 (COL1)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
PARTITION BY RANGE ( COL1+13 ) (
PARTITION P0 VALUES LESS THAN (-44),
PARTITION P1 VALUES LESS THAN (-23),
PARTITION P2 VALUES LESS THAN (-22),
PARTITION P3 VALUES LESS THAN (63),
PARTITION P4 VALUES LESS THAN (75),
PARTITION P5 VALUES LESS THAN (90),
PARTITION PMX VALUES LESS THAN (MAXVALUE)
) ;
explain format='brief' select col1, col2 from UK_RP16939 where col1 in (116, 48, -30);
id	estRows	task	access object	operator info
PartitionUnion	6.00	root		
├─IndexLookUp	3.00	root		
│ ├─IndexRangeScan(Build)	3.00	cop[tikv]	table:UK_RP16939, partition:P3, index:UK_COL1(COL1)	range:[-30,-30], [48,48], [116,116], keep order:false, stats:pseudo
│ └─TableRowIDScan(Probe)	3.00	cop[tikv]	table:UK_RP16939, partition:P3	keep order:false, stats:pseudo
└─IndexLookUp	3.00	root		
  ├─IndexRangeScan(Build)	3.00	cop[tikv]	table:UK_RP16939, partition:PMX, index:UK_COL1(COL1)	range:[-30,-30], [48,48], [116,116], keep order:false, stats:pseudo
  └─TableRowIDScan(Probe)	3.00	cop[tikv]	table:UK_RP16939, partition:PMX	keep order:false, stats:pseudo
select col1, col2 from UK_RP16939 where col1 in (116, 48, -30);
col1	col2
drop table if exists UK_RP16939;
CREATE TABLE UK_RP16939 (
COL1 tinyint(16) DEFAULT '108' COMMENT 'NUMERIC UNIQUE INDEX',
COL2 varchar(20) DEFAULT NULL,
COL4 datetime DEFAULT NULL,
COL3 bigint(20) DEFAULT NULL,
COL5 float DEFAULT NULL,
UNIQUE KEY UK_COL1 (COL1)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
PARTITION BY LIST ( COL1+13 ) (
PARTITION P0 VALUES IN (-44, -23),
PARTITION P1 VALUES IN (-22, 63),
PARTITION P2 VALUES IN (75, 90)
) ;
explain format='brief' select col1, col2 from UK_RP16939 where col1 in (116, 48, -30);
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
select col1, col2 from UK_RP16939 where col1 in (116, 48, -30);
col1	col2
drop table if exists UK_RP16939;
set @@tidb_partition_prune_mode = DEFAULT;
set @@session.tidb_enable_list_partition = DEFAULT;
drop table if exists test_distinct;
CREATE TABLE test_distinct (
id bigint(18) NOT NULL COMMENT '主键',
b bigint(18) NOT NULL COMMENT '用户ID',
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
insert into test_distinct values (123456789101112131,223456789101112131),(123456789101112132,223456789101112131);
select distinct b from test_distinct where id in (123456789101112131,123456789101112132);
b
223456789101112131
drop table if exists t;
create table t(a binary(2) primary key, b binary(2));
insert into t values("a", "b");
set @@sql_mode="";
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a ";
a	b
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a  ";
a	b
explain format='brief' select hex(a), hex(b) from t where a = "a\0";
id	estRows	task	access object	operator info
Projection	1.00	root		hex(executor__point_get.t.a)->Column#4, hex(executor__point_get.t.b)->Column#5
└─Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select hex(a), hex(b) from t where a = "a\0";
hex(a)	hex(b)
6100	6200
insert into t values("a ", "b ");
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a ";
a	b
a 	b 
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a  ";
a	b
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a ";
a	b
a 	b 
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t where a = "a  ";
a	b
set @@sql_mode=DEFAULT;
drop table if exists t;
create table t(a binary(2) primary key, b binary(2));
insert into t values("a", "b");
set @@sql_mode="";
explain format='brief' select * from t tmp where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a";
a	b
explain format='brief' select * from t tmp where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a ";
a	b
explain format='brief' select * from t tmp where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a  ";
a	b
explain format='brief' select hex(a), hex(b) from t tmp where a = "a\0";
id	estRows	task	access object	operator info
Projection	1.00	root		hex(executor__point_get.t.a)->Column#4, hex(executor__point_get.t.b)->Column#5
└─Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select hex(a), hex(b) from t tmp where a = "a\0";
hex(a)	hex(b)
6100	6200
insert into t values("a ", "b ");
explain format='brief' select * from t tmp where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a";
a	b
explain format='brief' select * from t tmp where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a ";
a	b
a 	b 
explain format='brief' select * from t tmp where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a  ";
a	b
explain format='brief' select * from t tmp where a = "a";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a";
a	b
explain format='brief' select * from t tmp where a = "a ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a ";
a	b
a 	b 
explain format='brief' select * from t tmp where a = "a  ";
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t, index:PRIMARY(a)	
select * from t tmp where a = "a  ";
a	b
set @@sql_mode=DEFAULT;
drop table if exists t;
create table t(a binary(2), b binary(2), index idx_1(a));
insert into t values("a", "b");
set @@sql_mode="";
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a","a"], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a ","a "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a ";
a	b
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a  ","a  "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a  ";
a	b
explain format='brief' select hex(a), hex(b) from t where a = "a\0";
id	estRows	task	access object	operator info
Projection	10.00	root		hex(executor__point_get.t.a)->Column#4, hex(executor__point_get.t.b)->Column#5
└─IndexLookUp	10.00	root		
  ├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a\x00","a\x00"], keep order:false, stats:pseudo
  └─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select hex(a), hex(b) from t where a = "a\0";
hex(a)	hex(b)
6100	6200
set @@sql_mode="";
explain format='brief' select * from t tmp where a = "a";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:tmp, index:idx_1(a)	range:["a","a"], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:tmp	keep order:false, stats:pseudo
select * from t tmp where a = "a";
a	b
explain format='brief' select * from t tmp where a = "a ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:tmp, index:idx_1(a)	range:["a ","a "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:tmp	keep order:false, stats:pseudo
select * from t tmp where a = "a ";
a	b
explain format='brief' select * from t tmp where a = "a  ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:tmp, index:idx_1(a)	range:["a  ","a  "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:tmp	keep order:false, stats:pseudo
select * from t tmp where a = "a  ";
a	b
explain format='brief' select hex(a), hex(b) from t tmp where a = "a\0";
id	estRows	task	access object	operator info
Projection	10.00	root		hex(executor__point_get.t.a)->Column#4, hex(executor__point_get.t.b)->Column#5
└─IndexLookUp	10.00	root		
  ├─IndexRangeScan(Build)	10.00	cop[tikv]	table:tmp, index:idx_1(a)	range:["a\x00","a\x00"], keep order:false, stats:pseudo
  └─TableRowIDScan(Probe)	10.00	cop[tikv]	table:tmp	keep order:false, stats:pseudo
select hex(a), hex(b) from t tmp where a = "a\0";
hex(a)	hex(b)
6100	6200
insert into t values("a ", "b ");
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a","a"], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a ","a "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a ";
a	b
a 	b 
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a  ","a  "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a  ";
a	b
explain format='brief' select * from t where a = "a";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a","a"], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a";
a	b
explain format='brief' select * from t where a = "a ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a ","a "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a ";
a	b
a 	b 
explain format='brief' select * from t where a = "a  ";
id	estRows	task	access object	operator info
IndexLookUp	10.00	root		
├─IndexRangeScan(Build)	10.00	cop[tikv]	table:t, index:idx_1(a)	range:["a  ","a  "], keep order:false, stats:pseudo
└─TableRowIDScan(Probe)	10.00	cop[tikv]	table:t	keep order:false, stats:pseudo
select * from t where a = "a  ";
a	b
set sql_mode=default;
drop table if exists t6;
create table t6 (id bigint, a bigint, primary key(id), unique key(a));
insert into t6 values(9223372036854775807, 9223372036854775807);
insert into t6 values(1, 1);
select * from t6 where a = 9223372036854775808;
id	a
select * from t6 where a = '1.123';
id	a
select * from t6 where id = 9223372036854775808;
id	a
select * from t6 where id = '1.123';
id	a
drop table if exists t;
create table t(pk int1 primary key);
insert into t values(125);
explain format='brief' select * from t where pk = 9223372036854775807;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 18446744073709551616;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 9223372036854775808;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 18446744073709551615;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 128;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
drop table if exists t;
create table t(pk int8 primary key);
insert into t values(9223372036854775807);
select * from t where pk = 9223372036854775807;
pk
9223372036854775807
explain format='brief' select * from t where pk = 9223372036854775807;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:9223372036854775807
explain format='brief' select * from t where pk = 18446744073709551616;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 9223372036854775808;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 18446744073709551615;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
drop table if exists t;
create table t(pk int1 unsigned primary key);
insert into t values(255);
select * from t where pk = 255;
pk
255
explain format='brief' select * from t where pk = 256;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 9223372036854775807;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 18446744073709551616;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 9223372036854775808;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 18446744073709551615;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
drop table if exists t;
create table t(pk int8 unsigned primary key);
insert into t value(18446744073709551615);
explain format='brief' select * from t where pk = 18446744073709551615;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:18446744073709551615
select * from t where pk = 18446744073709551615;
pk
18446744073709551615
explain format='brief' select * from t where pk = 9223372036854775807;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:9223372036854775807
explain format='brief' select * from t where pk = 18446744073709551616;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
explain format='brief' select * from t where pk = 9223372036854775808;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:9223372036854775808
drop table if exists t;
create table t(pk int1 primary key);
insert into t values(1);
explain format='brief' select * from t where pk = 1.1;
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
select * from t where pk = 1.1;
pk
explain format='brief' select * from t where pk = '1.1';
id	estRows	task	access object	operator info
TableDual	0.00	root		rows:0
select * from t where pk = '1.1';
pk
explain format='brief' select * from t where pk = 1;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:1
select * from t where pk = 1;
pk
1
explain format='brief' select * from t where pk = '1';
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:1
select * from t where pk = '1';
pk
1
explain format='brief' select * from t where pk = '1.0';
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:1
select * from t where pk = '1.0';
pk
1
drop table if exists t;
create table t (a varchar(20), b int);
insert into t values("aaa", 12);
explain format = 'brief' select * from t where t._tidb_rowid = 1;
id	estRows	task	access object	operator info
Point_Get	1.00	root	table:t	handle:1
select * from t where t._tidb_rowid = 1;
a	b
aaa	12
drop table if exists t;
create table t (a varchar(255) charset gbk primary key /*T![clustered_index] clustered */, b int);
insert into t values ('你好', 1);
explain select * from t where a = 0xC4E3BAC3;
id	estRows	task	access object	operator info
Point_Get_5	1.00	root	table:t, clustered index:PRIMARY(a)	
select * from t where a = 0xC4E3BAC3;
a	b
你好	1
set tidb_enable_clustered_index = ON;
drop table if exists pgt;
create table pgt (a varchar(64), b varchar(64), uk int, v int, primary key(a, b), unique key uuk(uk));
insert pgt values ('a', 'a1', 1, 11), ('b', 'b1', 2, 22), ('c', 'c1', 3, 33);
select * from pgt where (a, b) in (('a', 'a1'), ('c', 'c1'));
a	b	uk	v
a	a1	1	11
c	c1	3	33
select * from pgt where a = 'b' and b = 'b1';
a	b	uk	v
b	b1	2	22
select * from pgt where uk = 1;
a	b	uk	v
a	a1	1	11
select * from pgt where uk in (1, 2, 3);
a	b	uk	v
a	a1	1	11
b	b1	2	22
c	c1	3	33
admin check table pgt;
drop table if exists snp;
create table snp(id1 int, id2 int, v int, primary key(id1, id2));
insert snp values (1, 1, 1), (2, 2, 2), (2, 3, 3);
explain format = 'brief' select * from snp where id1 = 1;
id	estRows	task	access object	operator info
TableReader	10.00	root		data:TableRangeScan
└─TableRangeScan	10.00	cop[tikv]	table:snp	range:[1,1], keep order:false, stats:pseudo
explain format = 'brief' select * from snp where id1 in (1, 100);
id	estRows	task	access object	operator info
TableReader	20.00	root		data:TableRangeScan
└─TableRangeScan	20.00	cop[tikv]	table:snp	range:[1,1], [100,100], keep order:false, stats:pseudo
select * from snp where id1 = 2;
id1	id2	v
2	2	2
2	3	3
set tidb_enable_clustered_index = DEFAULT;
set tidb_enable_clustered_index = ON;
drop table if exists t1, t2;
create table t1 (a int, b decimal(10,0), c int, primary key(a,b));
create table t2 (a varchar(20), b int, primary key(a), unique key(b));
insert into t1 values(1,1,1),(2,2,2),(3,3,3);
insert into t2 values('111',1),('222',2),('333',3);
analyze table t1;
analyze table t2;
explain format = 'brief' select * from t1 where a = 1 and b = 1 and c = 1;
id	estRows	task	access object	operator info
Selection	0.11	root		eq(executor__point_get.t1.c, 1)
└─Point_Get	1.00	root	table:t1, clustered index:PRIMARY(a, b)	
select * from t1 where a = 1 and b = 1 and c = 1;
a	b	c
1	1	1
explain format = 'brief' select * from t2 where t2.a = '111' and t2.b = 1;
id	estRows	task	access object	operator info
Selection	0.33	root		eq(executor__point_get.t2.b, 1)
└─Point_Get	1.00	root	table:t2, clustered index:PRIMARY(a)	
select * from t2 where t2.a = '111' and t2.b = 1;
a	b
111	1
explain format = 'brief' select * from t1 join t2 on t1.a = t2.b where t1.a = 1;
id	estRows	task	access object	operator info
HashJoin	1.00	root		CARTESIAN inner join
├─Point_Get(Build)	1.00	root	table:t2, index:b(b)	
└─TableReader(Probe)	1.00	root		data:TableRangeScan
  └─TableRangeScan	1.00	cop[tikv]	table:t1	range:[1,1], keep order:false
select * from t1 join t2 on t1.a = t2.b where t1.a = 1;
a	b	c	a	b
1	1	1	111	1
explain format = 'brief' select * from t1 where (a,b) in ((1,1),(2,2)) and c = 2;
id	estRows	task	access object	operator info
Selection	0.56	root		eq(executor__point_get.t1.c, 2)
└─Batch_Point_Get	2.00	root	table:t1, clustered index:PRIMARY(a, b)	keep order:false, desc:false
select * from t1 where (a,b) in ((1,1),(2,2)) and c = 2;
a	b	c
2	2	2
explain format = 'brief' select * from t2 where a in ('111','222') and b = 2;
id	estRows	task	access object	operator info
Selection	0.67	root		eq(executor__point_get.t2.b, 2)
└─Batch_Point_Get	2.00	root	table:t2, clustered index:PRIMARY(a)	keep order:false, desc:false
select * from t2 where a in ('111','222') and b = 2;
a	b
222	2
explain format = 'brief' select * from t2 where a in ('111','222') union all select a,c from t1 where (a,b) in ((1,1),(2,2));
id	estRows	task	access object	operator info
Union	3.67	root		
├─Batch_Point_Get	2.00	root	table:t2, clustered index:PRIMARY(a)	keep order:false, desc:false
└─Projection	1.67	root		cast(executor__point_get.t1.a, varchar(20) BINARY CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6, executor__point_get.t1.c->Column#7
  └─Batch_Point_Get	2.00	root	table:t1, clustered index:PRIMARY(a, b)	keep order:false, desc:false
select * from t2 where a in ('111','222') union all select a,c from t1 where (a,b) in ((1,1),(2,2));
a	b
1	1
111	1
2	2
222	2
set tidb_enable_clustered_index = DEFAULT;
drop table if exists t;
create table t (a int primary key);
set @a=(select current_timestamp(3));
select sleep(0.05);
sleep(0.05)
0
insert into t values (1);
select * from t as of timestamp @a where a = 1;
a
drop table if exists t;
drop table if exists t1;
create table t1(id int primary key, v int);
insert into t1 values(1, 10);
prepare s from 'select * from t1 where id=1';
set @@tidb_enable_plan_replayer_capture=1;
execute s;
id	v
1	10
execute s;
id	v
1	10
update t1 set v=v+1;
execute s;
id	v
1	11
set @@tidb_enable_plan_replayer_capture=default;
set session tidb_txn_mode='';
drop table if exists t;
create table t(pk int primary key, c int);
insert into t values (1, 1), (2, 2);
set @@tidb_disable_txn_auto_retry = 0;
begin;
select * from t where pk = 1 for update;
pk	c
1	1
set session tidb_txn_mode='';
update t set c = c + 1 where pk = 1;
update t set c = c + 1 where pk = 2;
commit;
Error 8002 (HY000): <ConnID> can not retry select for update statement
set session tidb_txn_mode=pessimistic;
drop table if exists point;
create table point (id int primary key, c int, d varchar(10), unique c_d (c, d));
insert point values (1, 1, 'a');
insert point values (2, 2, 'b');
lock tables point write;
select * from point where id = 1;
id	c	d
1	1	a
explain analyze select * from point where id = 1;
id	estRows	actRows	task	access object	execution info	operator info	memory	disk
Point_Get_1	1.00	1	root	table:point	.*num_rpc.*	handle:1	N/A	N/A
unlock tables;
update point set c = 3 where id = 1;
lock tables point write;
select * from point where id = 1;
id	c	d
1	3	a
explain analyze select * from point where id = 1;
id	estRows	actRows	task	access object	execution info	operator info	memory	disk
Point_Get_1	1.00	1	root	table:point	.*num_rpc.*	handle:1	N/A	N/A
unlock tables;