182 lines
3.3 KiB
Plaintext
182 lines
3.3 KiB
Plaintext
set @@tidb_enable_prepared_plan_cache=true;
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drop table if exists t;
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create table t (id int, KEY id (id));
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insert into t values (1), (2), (3);
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prepare stmt from 'select * from t use index(id) where id = ?';
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execute stmt using @id;
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id
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execute stmt using @id;
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id
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set @id="1";
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execute stmt using @id;
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id
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1
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execute stmt using @id2;
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id
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execute stmt using @id;
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id
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1
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set @@tidb_enable_prepared_plan_cache=false;
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drop table if exists t;
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create table t (id int, KEY id (id));
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insert into t values (1), (2), (3);
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prepare stmt from 'select * from t use index(id) where id = ?';
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execute stmt using @id;
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id
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1
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execute stmt using @id;
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id
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1
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set @id="1";
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execute stmt using @id;
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id
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1
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execute stmt using @id2;
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id
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execute stmt using @id;
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id
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1
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set @@tidb_enable_prepared_plan_cache=default;
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set @@tidb_enable_prepared_plan_cache=true;
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drop table if exists t;
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create table t (a int, b int, index a_idx(a));
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insert into t values (1,1), (2,2), (null,3);
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select a, b from t order by b asc;
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a b
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1 1
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2 2
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NULL 3
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prepare stmt from 'select a, b from t where ? order by b asc';
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execute stmt using @param;
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a b
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set @param = true;
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execute stmt using @param;
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a b
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1 1
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2 2
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NULL 3
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set @param = false;
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execute stmt using @param;
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a b
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set @param = 1;
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execute stmt using @param;
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a b
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1 1
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2 2
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NULL 3
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set @param = 0;
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execute stmt using @param;
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a b
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set @@tidb_enable_prepared_plan_cache=false;
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drop table if exists t;
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create table t (a int, b int, index a_idx(a));
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insert into t values (1,1), (2,2), (null,3);
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select a, b from t order by b asc;
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a b
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1 1
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2 2
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NULL 3
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prepare stmt from 'select a, b from t where ? order by b asc';
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execute stmt using @param;
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a b
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set @param = true;
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execute stmt using @param;
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a b
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1 1
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2 2
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NULL 3
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set @param = false;
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execute stmt using @param;
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a b
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set @param = 1;
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execute stmt using @param;
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a b
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1 1
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2 2
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NULL 3
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set @param = 0;
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execute stmt using @param;
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a b
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set @@tidb_enable_prepared_plan_cache=default;
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set @@tidb_enable_prepared_plan_cache=true;
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drop table if exists t;
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create table t(data mediumblob);
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prepare stmt from 'insert t (data) values (?)';
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set @a = 'a';
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execute stmt using @a;
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set @b = 'aaaaaaaaaaaaaaaaaa';
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execute stmt using @b;
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select * from t;
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data
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a
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aaaaaaaaaaaaaaaaaa
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drop table if exists t;
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create table t(data decimal);
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prepare stmt from 'insert t (data) values (?)';
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set @a = '1';
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execute stmt using @a;
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set @b = '11111.11111';
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execute stmt using @b;
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select * from t;
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data
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1
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11111
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drop table if exists t;
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create table t(data decimal(10,3));
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prepare stmt from 'insert t (data) values (?)';
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set @a = 1.1;
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execute stmt using @a;
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set @b = 11.11;
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execute stmt using @b;
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select * from t;
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data
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1.100
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11.110
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set @@tidb_enable_prepared_plan_cache=false;
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drop table if exists t;
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create table t(data mediumblob);
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prepare stmt from 'insert t (data) values (?)';
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set @a = 'a';
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execute stmt using @a;
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set @b = 'aaaaaaaaaaaaaaaaaa';
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execute stmt using @b;
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select * from t;
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data
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a
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aaaaaaaaaaaaaaaaaa
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drop table if exists t;
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create table t(data decimal);
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prepare stmt from 'insert t (data) values (?)';
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set @a = '1';
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execute stmt using @a;
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set @b = '11111.11111';
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execute stmt using @b;
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select * from t;
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data
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1
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11111
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drop table if exists t;
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create table t(data decimal(10,3));
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prepare stmt from 'insert t (data) values (?)';
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set @a = 1.1;
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execute stmt using @a;
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set @b = 11.11;
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execute stmt using @b;
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select * from t;
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data
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1.100
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11.110
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set @@tidb_enable_prepared_plan_cache=default;
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