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session_test.go
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// Copyright 2015 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package tidb
import (
"fmt"
"strings"
"sync"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/tidb/context"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/executor"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/model"
"github.com/pingcap/tidb/mysql"
"github.com/pingcap/tidb/parser"
"github.com/pingcap/tidb/plan"
"github.com/pingcap/tidb/privilege/privileges"
"github.com/pingcap/tidb/sessionctx"
"github.com/pingcap/tidb/store/localstore"
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/terror"
"github.com/pingcap/tidb/util/testleak"
"github.com/pingcap/tidb/util/types"
)
var (
_ = Suite(&testSessionSuite{})
_ = Suite(&test1435Suite{})
)
type testSessionSuite struct {
dbName string
createDBSQL string
dropDBSQL string
useDBSQL string
createTableSQL string
dropTableSQL string
selectSQL string
store kv.Storage
dom *domain.Domain
}
func (s *testSessionSuite) SetUpSuite(c *C) {
s.dbName = "test_session_db"
s.dropTableSQL = `Drop TABLE if exists t;`
s.createTableSQL = `CREATE TABLE t(id TEXT);`
s.selectSQL = `SELECT * from t;`
s.store = newStore(c, s.dbName)
dom, err := BootstrapSession(s.store)
c.Assert(err, IsNil)
s.dom = dom
}
func (s *testSessionSuite) TearDownSuite(c *C) {
removeStore(c, s.dbName)
s.dom.Close()
err := s.store.Close()
c.Assert(err, IsNil)
}
func (s *testSessionSuite) TestPrepare(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_prepare"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
// create table
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, s.createTableSQL)
// insert data
mustExecSQL(c, se, `INSERT INTO t VALUES ("id");`)
id, ps, fields, err := se.PrepareStmt("select id+? from t")
c.Assert(err, IsNil)
c.Assert(fields, HasLen, 1)
c.Assert(id, Equals, uint32(1))
c.Assert(ps, Equals, 1)
mustExecSQL(c, se, `set @a=1`)
_, err = se.ExecutePreparedStmt(id, "1")
c.Assert(err, IsNil)
err = se.DropPreparedStmt(id)
c.Assert(err, IsNil)
mustExecSQL(c, se, "prepare stmt from 'select 1+?'")
mustExecSQL(c, se, "set @v1=100")
rs := mustExecSQL(c, se, "execute stmt using @v1")
r, err := rs.Next()
c.Assert(err, IsNil)
c.Assert(r.Data[0].GetFloat64(), Equals, float64(101))
mustExecSQL(c, se, "set @v2=200")
rs = mustExecSQL(c, se, "execute stmt using @v2")
r, err = rs.Next()
c.Assert(err, IsNil)
c.Assert(r.Data[0].GetFloat64(), Equals, float64(201))
mustExecSQL(c, se, "set @v3=300")
rs = mustExecSQL(c, se, "execute stmt using @v3")
r, err = rs.Next()
c.Assert(err, IsNil)
c.Assert(r.Data[0].GetFloat64(), Equals, float64(301))
mustExecSQL(c, se, "deallocate prepare stmt")
// Execute prepared statements for more than one time.
mustExecSQL(c, se, "create table multiexec (a int, b int)")
mustExecSQL(c, se, "insert multiexec values (1, 1), (2, 2)")
id, _, _, err = se.PrepareStmt("select a from multiexec where b = ? order by b")
c.Assert(err, IsNil)
rs, err = se.ExecutePreparedStmt(id, 1)
c.Assert(err, IsNil)
rs.Close()
rs, err = se.ExecutePreparedStmt(id, 2)
rs.Close()
c.Assert(err, IsNil)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestAffectedRows(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_affect_rows"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, s.createTableSQL)
mustExecSQL(c, se, `INSERT INTO t VALUES ("a");`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `INSERT INTO t VALUES ("b");`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `UPDATE t set id = 'c' where id = 'a';`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `UPDATE t set id = 'a' where id = 'a';`)
c.Assert(int(se.AffectedRows()), Equals, 0)
mustExecSQL(c, se, `SELECT * from t;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, data int)")
mustExecSQL(c, se, `INSERT INTO t VALUES (1, 0), (0, 0), (1, 1);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where data = 0;`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, c1 timestamp);")
mustExecSQL(c, se, `insert t values(1, 0);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where id = 1;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
// With ON DUPLICATE KEY UPDATE, the affected-rows value per row is 1 if the row is inserted as a new row,
// 2 if an existing row is updated, and 0 if an existing row is set to its current values.
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (c1 int PRIMARY KEY, c2 int);")
mustExecSQL(c, se, `insert t values(1, 1);`)
mustExecSQL(c, se, `insert into t values (1, 1) on duplicate key update c2=2;`)
c.Assert(int(se.AffectedRows()), Equals, 2)
mustExecSQL(c, se, `insert into t values (1, 1) on duplicate key update c2=2;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
createSQL := `CREATE TABLE IF NOT EXISTS test (
id VARCHAR(36) PRIMARY KEY NOT NULL,
factor INTEGER NOT NULL DEFAULT 2);`
mustExecSQL(c, se, createSQL)
insertSQL := `INSERT INTO test(id) VALUES('id') ON DUPLICATE KEY UPDATE factor=factor+3;`
mustExecSQL(c, se, insertSQL)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, insertSQL)
c.Assert(int(se.AffectedRows()), Equals, 2)
mustExecSQL(c, se, insertSQL)
c.Assert(int(se.AffectedRows()), Equals, 2)
se.SetClientCapability(mysql.ClientFoundRows)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, data int)")
mustExecSQL(c, se, `INSERT INTO t VALUES (1, 0), (0, 0), (1, 1);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where data = 0;`)
c.Assert(int(se.AffectedRows()), Equals, 2)
sessionExec(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestString(c *C) {
defer testleak.AfterTest(c)()
se := newSession(c, s.store, s.dbName)
sessionExec(c, se, "select 1")
// here to check the panic bug in String() when txn is nil after committed.
c.Log(se.String())
}
func (s *testSessionSuite) TestResultField(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_result_field"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
// create table
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int);")
mustExecSQL(c, se, `INSERT INTO t VALUES (1);`)
mustExecSQL(c, se, `INSERT INTO t VALUES (2);`)
r := mustExecSQL(c, se, `SELECT count(*) from t;`)
c.Assert(r, NotNil)
_, err := GetRows(r)
c.Assert(err, IsNil)
fields, err := r.Fields()
c.Assert(err, IsNil)
c.Assert(len(fields), Equals, 1)
field := fields[0].Column
c.Assert(field.Tp, Equals, mysql.TypeLonglong)
c.Assert(field.Flen, Equals, 21)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestPrimaryKeyAutoincrement(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_primary_key_auto_increment"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL, name varchar(255) UNIQUE NOT NULL, status int)")
mustExecSQL(c, se, "insert t (name) values (?)", "abc")
id := se.LastInsertID()
c.Check(id != 0, IsTrue)
se2 := newSession(c, s.store, dbName)
rs := mustExecSQL(c, se2, "select * from t")
c.Assert(rs, NotNil)
row, err := rs.Next()
c.Assert(err, IsNil)
match(c, row.Data, id, []byte("abc"), nil)
mustExecSQL(c, se, "update t set name = 'abc', status = 1 where id = ?", id)
rs = mustExecSQL(c, se2, "select * from t")
c.Assert(rs, NotNil)
row, err = rs.Next()
c.Assert(err, IsNil)
match(c, row.Data, id, []byte("abc"), 1)
// Check for pass bool param to tidb prepared statement
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (id tiny)")
mustExecSQL(c, se, "insert t values (?)", true)
rs = mustExecSQL(c, se, "select * from t")
c.Assert(rs, NotNil)
row, err = rs.Next()
c.Assert(err, IsNil)
match(c, row.Data, int8(1))
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestAutoIncrementID(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_auto_increment_id"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
mustExecSQL(c, se, "insert t values ()")
mustExecSQL(c, se, "insert t values ()")
mustExecSQL(c, se, "insert t values ()")
se.Execute("drop table if exists t;")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
mustExecSQL(c, se, "insert t values ()")
lastID := se.LastInsertID()
c.Assert(lastID, Less, uint64(4))
mustExecSQL(c, se, "insert t () values ()")
c.Assert(se.LastInsertID(), Greater, lastID)
lastID = se.LastInsertID()
mustExecSQL(c, se, "insert t values (100)")
c.Assert(se.LastInsertID(), Equals, uint64(100))
// If the auto_increment column value is given, it uses the value of the latest row.
mustExecSQL(c, se, "insert t values (120), (112)")
c.Assert(se.LastInsertID(), Equals, uint64(112))
// The last_insert_id function only use last auto-generated id.
mustExecMatch(c, se, "select last_insert_id()", [][]interface{}{{lastID}})
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (i tinyint unsigned not null auto_increment, primary key (i));")
mustExecSQL(c, se, "insert into t set i = 254;")
mustExecSQL(c, se, "insert t values ()")
// The last insert ID doesn't care about primary key, it is set even if its a normal index column.
mustExecSQL(c, se, "create table autoid (id int auto_increment, index (id))")
mustExecSQL(c, se, "insert autoid values ()")
c.Assert(se.LastInsertID(), Greater, uint64(0))
mustExecSQL(c, se, "insert autoid values (100)")
c.Assert(se.LastInsertID(), Equals, uint64(100))
mustExecMatch(c, se, "select last_insert_id(20)", [][]interface{}{{20}})
mustExecMatch(c, se, "select last_insert_id()", [][]interface{}{{20}})
mustExecSQL(c, se, dropDBSQL)
}
func checkTxn(c *C, se Session, stmt string, expectStatus uint16) {
mustExecSQL(c, se, stmt)
if expectStatus != 0 {
c.Assert(se.(*session).txn.Valid(), IsTrue)
}
}
func checkAutocommit(c *C, se Session, expectStatus uint16) {
ret := se.(*session).sessionVars.Status & mysql.ServerStatusAutocommit
c.Assert(ret, Equals, expectStatus)
}
// TestAutocommit ...
// See https://dev.mysql.com/doc/internals/en/status-flags.html
func (s *testSessionSuite) TestAutocommit(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_auto_commit"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
checkTxn(c, se, "drop table if exists t;", 0)
checkAutocommit(c, se, 2)
checkTxn(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)", 0)
checkAutocommit(c, se, 2)
checkTxn(c, se, "insert t values ()", 0)
checkAutocommit(c, se, 2)
checkTxn(c, se, "begin", 1)
checkAutocommit(c, se, 2)
checkTxn(c, se, "insert t values ()", 1)
checkAutocommit(c, se, 2)
checkTxn(c, se, "drop table if exists t;", 0)
checkAutocommit(c, se, 2)
checkTxn(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)", 0)
checkAutocommit(c, se, 2)
checkTxn(c, se, "set autocommit=0;", 0)
checkAutocommit(c, se, 0)
checkTxn(c, se, "insert t values ()", 1)
checkAutocommit(c, se, 0)
checkTxn(c, se, "commit", 0)
checkAutocommit(c, se, 0)
checkTxn(c, se, "drop table if exists t;", 0)
checkAutocommit(c, se, 0)
checkTxn(c, se, "set autocommit='On';", 0)
checkAutocommit(c, se, 2)
mustExecSQL(c, se, dropDBSQL)
}
func checkInTrans(c *C, se Session, stmt string, expectStatus uint16) {
checkTxn(c, se, stmt, expectStatus)
ret := se.(*session).sessionVars.Status & mysql.ServerStatusInTrans
c.Assert(ret, Equals, expectStatus)
}
// TestInTrans ...
// See https://dev.mysql.com/doc/internals/en/status-flags.html
func (s *testSessionSuite) TestInTrans(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_intrans"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
checkInTrans(c, se, "drop table if exists t;", 0)
checkInTrans(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)", 0)
checkInTrans(c, se, "insert t values ()", 0)
checkInTrans(c, se, "begin", 1)
checkInTrans(c, se, "insert t values ()", 1)
checkInTrans(c, se, "drop table if exists t;", 0)
checkInTrans(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)", 0)
checkInTrans(c, se, "insert t values ()", 0)
checkInTrans(c, se, "commit", 0)
checkInTrans(c, se, "insert t values ()", 0)
checkInTrans(c, se, "set autocommit=0;", 0)
checkInTrans(c, se, "begin", 1)
checkInTrans(c, se, "insert t values ()", 1)
checkInTrans(c, se, "commit", 0)
checkInTrans(c, se, "insert t values ()", 1)
checkInTrans(c, se, "commit", 0)
checkInTrans(c, se, "set autocommit=1;", 0)
checkInTrans(c, se, "drop table if exists t;", 0)
checkInTrans(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)", 0)
checkInTrans(c, se, "begin", 1)
checkInTrans(c, se, "insert t values ()", 1)
checkInTrans(c, se, "rollback", 0)
mustExecSQL(c, se, dropDBSQL)
}
// testRowLock ...
// See http://dev.mysql.com/doc/refman/5.7/en/commit.html
func (s *testSessionSuite) testRowLock(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_row_lock"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
se1 := newSession(c, s.store, dbName)
se2 := newSession(c, s.store, dbName)
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, IsNil)
mustExecSQL(c, se, "create table t (c1 int, c2 int, c3 int)")
mustExecSQL(c, se, "insert t values (11, 2, 3)")
mustExecSQL(c, se, "insert t values (12, 2, 3)")
mustExecSQL(c, se, "insert t values (13, 2, 3)")
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2=21 where c1=11")
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=211 where c1=11")
mustExecSQL(c, se2, "commit")
_, err := exec(se1, "commit")
// se1 will retry and the final value is 21
c.Assert(err, IsNil)
// Check the result is correct
se3 := newSession(c, s.store, dbName)
r := mustExecSQL(c, se3, "select c2 from t where c1=11")
rows, err := GetRows(r)
matches(c, rows, [][]interface{}{{21}})
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2=21 where c1=11")
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=22 where c1=12")
mustExecSQL(c, se2, "commit")
mustExecSQL(c, se1, "commit")
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIssue1118(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue1118"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
c.Assert(se.(*session).txn, IsNil)
// insert
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (c1 int not null auto_increment, c2 int, PRIMARY KEY (c1))")
mustExecSQL(c, se, "insert into t set c2 = 11")
r := mustExecSQL(c, se, "select last_insert_id()")
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
mustExecSQL(c, se, "insert into t (c2) values (22), (33), (44)")
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2)
mustExecSQL(c, se, "insert into t (c1, c2) values (10, 55)")
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2)
// replace
mustExecSQL(c, se, "replace t (c2) values(66)")
r = mustExecSQL(c, se, "select * from t")
rows, err := GetRows(r)
c.Assert(err, IsNil)
matches(c, rows, [][]interface{}{{1, 11}, {2, 22}, {3, 33}, {4, 44}, {10, 55}, {11, 66}})
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 11)
// update
mustExecSQL(c, se, "update t set c1=last_insert_id(c1 + 100)")
r = mustExecSQL(c, se, "select * from t")
rows, err = GetRows(r)
c.Assert(err, IsNil)
matches(c, rows, [][]interface{}{{101, 11}, {102, 22}, {103, 33}, {104, 44}, {110, 55}, {111, 66}})
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 111)
mustExecSQL(c, se, "insert into t (c2) values (77)")
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 112)
// drop
mustExecSQL(c, se, "drop table t")
r = mustExecSQL(c, se, "select last_insert_id()")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 112)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIssue827(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue827"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
se1 := newSession(c, s.store, dbName)
mustExecSQL(c, se, "drop table if exists t1")
c.Assert(se.(*session).txn, IsNil)
mustExecSQL(c, se, "create table t1 (c2 int, c3 int, c1 int not null auto_increment, PRIMARY KEY (c1))")
mustExecSQL(c, se, "insert into t1 set c2 = 30")
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, IsNil)
mustExecSQL(c, se, "create table t (c2 int, c1 int not null auto_increment, PRIMARY KEY (c1))")
mustExecSQL(c, se, "insert into t (c2) values (1), (2), (3), (4), (5)")
// insert values
lastInsertID := se.LastInsertID()
mustExecSQL(c, se, "begin")
mustExecSQL(c, se, "insert into t (c2) values (11), (12), (13)")
rs, err := exec(se, "select c1 from t where c2 = 11")
c.Assert(err, IsNil)
expect, err := GetRows(rs)
c.Assert(err, IsNil)
_, err = exec(se, "update t set c2 = 33 where c2 = 1")
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2 = 22 where c2 = 1")
mustExecSQL(c, se1, "commit")
_, err = exec(se, "commit")
c.Assert(err, IsNil)
rs, err = exec(se, "select c1 from t where c2 = 11")
c.Assert(err, IsNil)
r, err := GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, DeepEquals, expect)
currLastInsertID := se.GetSessionVars().PrevLastInsertID
c.Assert(lastInsertID+5, Equals, currLastInsertID)
// insert set
lastInsertID = currLastInsertID
mustExecSQL(c, se, "begin")
mustExecSQL(c, se, "insert into t set c2 = 31")
rs, err = exec(se, "select c1 from t where c2 = 31")
c.Assert(err, IsNil)
expect, err = GetRows(rs)
c.Assert(err, IsNil)
_, err = exec(se, "update t set c2 = 44 where c2 = 2")
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2 = 55 where c2 = 2")
mustExecSQL(c, se1, "commit")
_, err = exec(se, "commit")
c.Assert(err, IsNil)
rs, err = exec(se, "select c1 from t where c2 = 31")
c.Assert(err, IsNil)
r, err = GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, DeepEquals, expect)
currLastInsertID = se.GetSessionVars().PrevLastInsertID
c.Assert(lastInsertID+3, Equals, currLastInsertID)
// replace
lastInsertID = currLastInsertID
mustExecSQL(c, se, "begin")
mustExecSQL(c, se, "insert into t (c2) values (21), (22), (23)")
rs, err = exec(se, "select c1 from t where c2 = 21")
c.Assert(err, IsNil)
expect, err = GetRows(rs)
c.Assert(err, IsNil)
_, err = exec(se, "update t set c2 = 66 where c2 = 3")
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2 = 77 where c2 = 3")
mustExecSQL(c, se1, "commit")
_, err = exec(se, "commit")
c.Assert(err, IsNil)
rs, err = exec(se, "select c1 from t where c2 = 21")
c.Assert(err, IsNil)
r, err = GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, DeepEquals, expect)
currLastInsertID = se.GetSessionVars().PrevLastInsertID
c.Assert(lastInsertID+1, Equals, currLastInsertID)
// update
lastInsertID = currLastInsertID
mustExecSQL(c, se, "begin")
mustExecSQL(c, se, "insert into t set c2 = 41")
mustExecSQL(c, se, "update t set c1 = 0 where c2 = 41")
rs, err = exec(se, "select c1 from t where c2 = 41")
c.Assert(err, IsNil)
expect, err = GetRows(rs)
c.Assert(err, IsNil)
_, err = exec(se, "update t set c2 = 88 where c2 = 4")
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2 = 99 where c2 = 4")
mustExecSQL(c, se1, "commit")
_, err = exec(se, "commit")
c.Assert(err, IsNil)
rs, err = exec(se, "select c1 from t where c2 = 41")
c.Assert(err, IsNil)
r, err = GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, DeepEquals, expect)
currLastInsertID = se.GetSessionVars().PrevLastInsertID
c.Assert(lastInsertID+3, Equals, currLastInsertID)
// prepare
lastInsertID = currLastInsertID
mustExecSQL(c, se, "begin")
mustExecSQL(c, se, "prepare stmt from 'insert into t (c2) values (?)'")
mustExecSQL(c, se, "set @v1=100")
mustExecSQL(c, se, "set @v2=200")
mustExecSQL(c, se, "set @v3=300")
mustExecSQL(c, se, "execute stmt using @v1")
mustExecSQL(c, se, "execute stmt using @v2")
mustExecSQL(c, se, "execute stmt using @v3")
mustExecSQL(c, se, "deallocate prepare stmt")
rs, err = exec(se, "select c1 from t where c2 = 12")
c.Assert(err, IsNil)
expect, err = GetRows(rs)
c.Assert(err, IsNil)
_, err = exec(se, "update t set c2 = 111 where c2 = 5")
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2 = 222 where c2 = 5")
mustExecSQL(c, se1, "commit")
_, err = exec(se, "commit")
c.Assert(err, IsNil)
rs, err = exec(se, "select c1 from t where c2 = 12")
c.Assert(err, IsNil)
r, err = GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, DeepEquals, expect)
currLastInsertID = se.GetSessionVars().PrevLastInsertID
c.Assert(lastInsertID+3, Equals, currLastInsertID)
mustExecSQL(c, se, dropDBSQL)
se.Close()
se1.Close()
}
func (s *testSessionSuite) TestIssue996(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue827"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, IsNil)
mustExecSQL(c, se, "create table t (c2 int, c3 int, c1 int not null auto_increment, PRIMARY KEY (c1))")
mustExecSQL(c, se, "insert into t set c2 = 30")
// insert values
lastInsertID := se.LastInsertID()
mustExecSQL(c, se, "prepare stmt1 from 'insert into t (c2) values (?)'")
mustExecSQL(c, se, "set @v1=10")
mustExecSQL(c, se, "set @v2=20")
mustExecSQL(c, se, "execute stmt1 using @v1")
mustExecSQL(c, se, "execute stmt1 using @v2")
mustExecSQL(c, se, "deallocate prepare stmt1")
rs, err := exec(se, "select c1 from t where c2 = 20")
c.Assert(err, IsNil)
r, err := GetRows(rs)
c.Assert(err, IsNil)
c.Assert(r, NotNil)
currLastInsertID := se.GetSessionVars().PrevLastInsertID
c.Assert(r[0][0].GetValue(), DeepEquals, int64(currLastInsertID))
c.Assert(lastInsertID+2, Equals, currLastInsertID)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIssue986(c *C) {
defer testleak.AfterTest(c)()
sqlText := `CREATE TABLE address (
id bigint(20) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (id));`
dbName := "test_issue827"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, sqlText)
sqlText = `insert into address values ('10')`
mustExecSQL(c, se, sqlText)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIssue1089(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue1089"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
r := mustExecSQL(c, se, "select cast(0.5 as unsigned)")
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select cast(-0.5 as signed)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, -1)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIssue1135(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue1135"
dropDBSQL1 := fmt.Sprintf("drop database %s;", dbName)
dropDBSQL2 := fmt.Sprintf("drop database %s;", dbName+"1")
se := newSession(c, s.store, dbName)
se1 := newSession(c, s.store, dbName+"1")
mustExecSQL(c, se1, "drop table if exists t")
mustExecSQL(c, se1, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se1, "insert into t (F1) values ('1'), ('4');")
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se, "insert into t (F1) values ('1'), ('2');")
mustExecSQL(c, se, "delete m1 from t m2,t m1 where m1.F1>1;")
r := mustExecSQL(c, se, "select * from t;")
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, []interface{}{'1'})
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se, "insert into t (F1) values ('1'), ('2');")
mustExecSQL(c, se, "delete m1 from t m1,t m2 where true and m1.F1<2;")
r = mustExecSQL(c, se, "select * from t;")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, []interface{}{'2'})
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se, "insert into t (F1) values ('1'), ('2');")
mustExecSQL(c, se, "delete m1 from t m1,t m2 where false;")
r = mustExecSQL(c, se, "select * from t;")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, []interface{}{'1'})
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, []interface{}{'2'})
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se, "insert into t (F1) values ('1'), ('2');")
mustExecSQL(c, se, "delete m1, m2 from t m1,t m2 where m1.F1>m2.F1;")
r = mustExecSQL(c, se, "select * from t;")
row, err = r.Next()
c.Assert(err, IsNil)
c.Assert(row, IsNil)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (F1 VARCHAR(30));")
mustExecSQL(c, se, "insert into t (F1) values ('1'), ('2');")
sql := fmt.Sprintf("delete %s.t from %s.t inner join %s.t where %s.t.F1 > %s.t.F1",
dbName+"1", dbName+"1", dbName, dbName+"1", dbName)
mustExecSQL(c, se1, sql)
r = mustExecSQL(c, se1, "select * from t;")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, []interface{}{'1'})
mustExecSQL(c, se, dropDBSQL1)
mustExecSQL(c, se, dropDBSQL2)
}
func (s *testSessionSuite) TestIssue1114(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_issue1114"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "set @tmp = 0")
mustExecSQL(c, se, "set @tmp := @tmp + 1")
r := mustExecSQL(c, se, "select @tmp")
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select @tmp1 = 1, @tmp2 := 2")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, nil, 2)
r = mustExecSQL(c, se, "select @tmp1 := 11, @tmp2")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 11, 2)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (c int);")
mustExecSQL(c, se, "insert into t values (1),(2);")
mustExecSQL(c, se, "update t set c = 3 WHERE c = @var:= 1")
r = mustExecSQL(c, se, "select * from t")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 3)
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2)
r = mustExecSQL(c, se, "select @tmp := count(*) from t")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2)
r = mustExecSQL(c, se, "select @tmp := c-2 from t where c=3")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestRow(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_row"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
r := mustExecSQL(c, se, "select row(1, 1) in (row(1, 1))")
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select row(1, 1) in (row(1, 0))")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 0)
r = mustExecSQL(c, se, "select row(1, 1) in (select 1, 1)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select row(1, 1) > row(1, 0)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select row(1, 1) > (select 1, 0)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
r = mustExecSQL(c, se, "select 1 > (select 1)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 0)
r = mustExecSQL(c, se, "select (select 1)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1)
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestIndex(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_index"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "create table if not exists test_index (c1 int, c double, index(c1), index(c))")
mustExecSQL(c, se, "insert into test_index values (1, 2), (3, null)")
r := mustExecSQL(c, se, "select c1 from test_index where c > 0")
rows, err := GetRows(r)
c.Assert(err, IsNil)
c.Assert(rows, HasLen, 1)
match(c, rows[0], 1)
mustExecSQL(c, se, "drop table if exists t1, t2")
mustExecSQL(c, se, `
create table t1 (c1 int, primary key(c1));
create table t2 (c2 int, primary key(c2));`)
mustExecSQL(c, se, `
insert into t1 values (1), (2);
insert into t2 values (2);`)
r = mustExecSQL(c, se, "select * from t1 left join t2 on t1.c1 = t2.c2 order by t1.c1")
rows, err = GetRows(r)
c.Assert(err, IsNil)
matches(c, rows, [][]interface{}{{1, nil}, {2, 2}})
r = mustExecSQL(c, se, "select * from t1 left join t2 on t1.c1 = t2.c2 where t2.c2 < 10")
rows, err = GetRows(r)
c.Assert(err, IsNil)
matches(c, rows, [][]interface{}{{2, 2}})
mustExecSQL(c, se, "create table if not exists test_varchar_index (c1 varchar(255), index(c1))")
mustExecSQL(c, se, "insert test_varchar_index values (''), ('a')")
mustExecMatch(c, se, "select * from test_varchar_index where c1 like ''", [][]interface{}{{[]byte("")}})
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (c1 int, c2 int)")
mustExecSQL(c, se, "insert into t values (1,2), (1,2)")
mustExecSQL(c, se, "create index idx_0 on t(c1)")
mustExecSQL(c, se, "create index idx_1 on t(c2)")
r = mustExecSQL(c, se, "select c1 as c2 from t where c1 >= 2")
rows, err = GetRows(r)
c.Assert(err, IsNil)
matches(c, rows, [][]interface{}{})
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestMySQLTypes(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_mysql_types"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
r := mustExecSQL(c, se, `select 0x01 + 1, x'4D7953514C' = "MySQL"`)
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2, 1)
r.Close()
r = mustExecSQL(c, se, `select 0b01 + 1, 0b01000001 = "A"`)
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 2, 1)
r.Close()
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestExpression(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_expression"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
r := mustExecSQL(c, se, `select + (1 > 0), -(1 >0), + (1 < 0), - (1 < 0)`)
row, err := r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1, -1, 0, 0)
r.Close()
r = mustExecSQL(c, se, "select 1 <=> 1, 1 <=> null, null <=> null, null <=> (select null)")
row, err = r.Next()
c.Assert(err, IsNil)
match(c, row.Data, 1, 0, 1, 1)
r.Close()
mustExecSQL(c, se, dropDBSQL)
}
func (s *testSessionSuite) TestSelect(c *C) {
defer testleak.AfterTest(c)()
dbName := "test_select"
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
se := newSession(c, s.store, dbName)
mustExecSQL(c, se, "create table if not exists t (c1 int, c2 int)")
mustExecSQL(c, se, "create table if not exists t1 (c1 int, c2 int)")
_, err := se.Execute("select * from t as a join t as a")
c.Assert(err, NotNil)
_, err = se.Execute("select * from t join t1 as t")
c.Assert(err, NotNil)
_, err = se.Execute("select * from t join test.t")
c.Assert(err, NotNil)
_, err = se.Execute("select * from t as a join (select 1) as a")
c.Assert(err, IsNil)