prepare pr1 from 'select ? in (1,?,?)';
set @a=1, @b=2, @c=3;
execute pr1 using @a,@b,@c;
? in (1,?,?)
1
prepare pr2 from 'select 3 in (1,?,?)';
set @a=2, @b=3;
execute pr2 using @a,@b;
3 in (1,?,?)
1
prepare pr3 from 'select ? in (1,2,3)';
set @a=4;
execute pr3 using @a;
? in (1,2,3)
0
prepare pr4 from 'select ? in (?,?,?)';
set @a=1, @b=2, @c=3, @d=4;
execute pr4 using @a,@b,@c,@d;
? in (?,?,?)
0
drop table if exists t;
create table t(a int);
prepare stmt from 'SELECT * FROM t order by rand()';
execute stmt;
a
prepare stmt from 'SELECT * FROM t order by now()';
execute stmt;
a
drop table if exists t;
create table t(a int);
insert into t values(1), (2), (3);
set @@session.sql_select_limit = 1;
prepare stmt from 'SELECT * FROM t';
execute stmt;
a
1
set @@session.sql_select_limit = default;
execute stmt;
a
1
2
3
set @@session.sql_select_limit = 2;
execute stmt;
a
1
2
set @@session.sql_select_limit = 1;
execute stmt;
a
1
set @@session.sql_select_limit = default;
execute stmt;
a
1
2
3
set @@session.sql_select_limit = 2;
execute stmt;
a
1
2
set sql_select_limit=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t;
create table t(a int);
prepare stmt from 'select * from t where a = ?';
set @a = 1;
execute stmt using @a;
a
select @@last_plan_from_cache;
@@last_plan_from_cache
0
execute stmt using @a;
a
select @@last_plan_from_cache;
@@last_plan_from_cache
1
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t;
create table t(a int auto_increment primary key);
prepare stmt from 'select row_count()';
insert into t values();
execute stmt;
row_count()
1
insert into t values(),(),();
execute stmt;
row_count()
3
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t1;
create table t1 (a varchar(40));
insert into t1 values ('C1'),('R1');
insert into mysql.expr_pushdown_blacklist values('regexp_like', 'tikv,tiflash,tidb', 'for test');
insert into mysql.expr_pushdown_blacklist values('regexp_substr', 'tikv,tiflash,tidb', 'for test');
insert into mysql.expr_pushdown_blacklist values('regexp_instr', 'tikv,tiflash,tidb', 'for test');
insert into mysql.expr_pushdown_blacklist values('regexp_replace', 'tikv,tiflash,tidb', 'for test');
admin reload expr_pushdown_blacklist;
set tidb_enable_vectorized_expression=ON;
prepare stmt1 from 'select a from t1 where a rlike ?';
prepare stmt2 from 'select a, regexp_substr(a, ?) from t1 order by a asc';
prepare stmt3 from 'select a, regexp_instr(a, ?) from t1 order by a asc';
prepare stmt4 from 'select a, regexp_replace(a, ?, ?) from t1 order by a asc';
set @a='^C.*';
set @r='xxxx';
execute stmt1 using @a;
a
C1
execute stmt2 using @a;
a	regexp_substr(a, ?)
C1	C1
R1	NULL
execute stmt3 using @a;
a	regexp_instr(a, ?)
C1	1
R1	0
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	xxxx
R1	R1
set @r='yyyy';
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	yyyy
R1	R1
set @a='^R.*';
execute stmt1 using @a;
a
R1
execute stmt2 using @a;
a	regexp_substr(a, ?)
C1	NULL
R1	R1
execute stmt3 using @a;
a	regexp_instr(a, ?)
C1	0
R1	1
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	C1
R1	yyyy
set tidb_enable_vectorized_expression=OFF;
set @a='^C.*';
set @r='xxxx';
execute stmt1 using @a;
a
C1
execute stmt2 using @a;
a	regexp_substr(a, ?)
C1	C1
R1	NULL
execute stmt3 using @a;
a	regexp_instr(a, ?)
C1	1
R1	0
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	xxxx
R1	R1
set @r='yyyy';
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	yyyy
R1	R1
set @a='^R.*';
execute stmt1 using @a;
a
R1
execute stmt2 using @a;
a	regexp_substr(a, ?)
C1	NULL
R1	R1
execute stmt3 using @a;
a	regexp_instr(a, ?)
C1	0
R1	1
execute stmt4 using @a, @r;
a	regexp_replace(a, ?, ?)
C1	C1
R1	yyyy
delete from mysql.expr_pushdown_blacklist where name like 'regexp%' and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
admin reload expr_pushdown_blacklist;
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_vectorized_expression=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t1;
create table t1 (a varchar(40));
insert into t1 values ('C1'),('R1'),('c1'),('r1');
insert into mysql.expr_pushdown_blacklist values('like', 'tikv,tiflash,tidb', 'for test');
insert into mysql.expr_pushdown_blacklist values('ilike', 'tikv,tiflash,tidb', 'for test');
admin reload expr_pushdown_blacklist;
set tidb_enable_vectorized_expression=ON;
prepare stmt1 from 'select a from t1 where a like ? order by a asc';
prepare stmt2 from 'select a from t1 where a ilike ? order by a asc';
set @a='%C%';
execute stmt1 using @a;
a
C1
execute stmt2 using @a;
a
C1
c1
set @a='%R%';
execute stmt1 using @a;
a
R1
execute stmt2 using @a;
a
R1
r1
set tidb_enable_vectorized_expression=OFF;
set @a='%C%';
execute stmt1 using @a;
a
C1
execute stmt2 using @a;
a
C1
c1
set @a='%R%';
execute stmt1 using @a;
a
R1
execute stmt2 using @a;
a
R1
r1
delete from mysql.expr_pushdown_blacklist where name in ('like', 'ilike') and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
admin reload expr_pushdown_blacklist;
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_vectorized_expression=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t1;
create table t1 (a varchar(40));
insert into t1 values ('a'),('b');
insert into mysql.expr_pushdown_blacklist values('aes_encrypt', 'tikv,tiflash,tidb', 'for test');
admin reload expr_pushdown_blacklist;
set tidb_enable_vectorized_expression=ON;
prepare stmt1 from 'select a, hex(aes_encrypt(a, ?)) from t1 order by a asc';
set @a='xx';
execute stmt1 using @a;
a	hex(aes_encrypt(a, ?))
a	DA767CA0BE9CE9A1A979F6169A84B712
b	56F19741AA9177000269D07B6C4C6D7D
set @a='yy';
execute stmt1 using @a;
a	hex(aes_encrypt(a, ?))
a	1318DA9E3BFC5FBEF34E5ACAFA944B09
b	1670ED5A2E8650BBCB09D7DF67B29FFC
execute stmt2 using @a;
a
set tidb_enable_vectorized_expression=OFF;
set @a='xx';
execute stmt1 using @a;
a	hex(aes_encrypt(a, ?))
a	DA767CA0BE9CE9A1A979F6169A84B712
b	56F19741AA9177000269D07B6C4C6D7D
set @a='yy';
execute stmt1 using @a;
a	hex(aes_encrypt(a, ?))
a	1318DA9E3BFC5FBEF34E5ACAFA944B09
b	1670ED5A2E8650BBCB09D7DF67B29FFC
execute stmt2 using @a;
a
delete from mysql.expr_pushdown_blacklist where name like 'aes_%' and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
admin reload expr_pushdown_blacklist;
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_vectorized_expression=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t;
create table t(col_int int);
insert into t values(null);
prepare stmt from 'SELECT ((col_int is true) = ?) AS res FROM t';
set @p0='0.8';
execute stmt using @p0;
res
0
set @p0='0';
execute stmt using @p0;
res
1
prepare stmt from 'SELECT UCASE(?) < col_int from t;';
set @a1 = 'xayh7vrWVNqZtzlJmdJQUwAHnkI8Ec';
execute stmt using @a1;
UCASE(?) < col_int
NULL
delete from t;
insert into t values(1);
prepare stmt from 'SELECT col_int < ? FROM t';
set @p0='-184467440737095516167.1';
execute stmt using @p0;
col_int < ?
0
set tidb_enable_prepared_plan_cache=default;
set tidb_enable_prepared_plan_cache=ON;
drop table if exists t;
create table t(col_double double);
insert into t values (1);
set tidb_enable_vectorized_expression=false;
insert into mysql.expr_pushdown_blacklist values('cast', 'tikv,tiflash,tidb', 'for test');
admin reload expr_pushdown_blacklist;
prepare stmt from 'SELECT * FROM (SELECT col_double AS c0 FROM t) t WHERE (ABS((REPEAT(?, ?) OR 5617780767323292672)) < LN(EXP(c0)) + (? ^ ?))';
set @a1 = 'JuvkBX7ykVux20zQlkwDK2DFelgn7';
set @a2 = 1;
set @a3 = -112990.35179796701;
set @a4 = 87997.92704840179;
execute stmt using @a1, @a2, @a3, @a4;
c0
1
set tidb_enable_vectorized_expression=default;
delete from mysql.expr_pushdown_blacklist where name = 'cast' and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
admin reload expr_pushdown_blacklist;
set tidb_enable_prepared_plan_cache=default;