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drop table if exists t1.t2;
set storage_engine=innodb;
CREATE TABLE t1 (a int, b int);
insert into t1 values (1,1),(1,2);
CREATE TABLE t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
drop table if exists t2;
Warnings:
Note 1051 Unknown table 't2'
CREATE TEMPORARY TABLE t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
drop table if exists t2;
Warnings:
Note 1051 Unknown table 't2'
CREATE TABLE t2 (a int, b int, primary key (a));
BEGIN;
INSERT INTO t2 values(100,100);
CREATE TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT * from t2;
a b
100 100
ROLLBACK;
SELECT * from t2;
a b
100 100
TRUNCATE table t2;
INSERT INTO t2 select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT * from t2;
a b
drop table t2;
CREATE TEMPORARY TABLE t2 (a int, b int, primary key (a));
BEGIN;
INSERT INTO t2 values(100,100);
CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT * from t2;
a b
100 100
COMMIT;
BEGIN;
INSERT INTO t2 values(101,101);
CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT * from t2;
a b
100 100
101 101
ROLLBACK;
SELECT * from t2;
a b
100 100
TRUNCATE table t2;
INSERT INTO t2 select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT * from t2;
a b
drop table t1,t2;
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