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tables_test.go
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// Copyright 2018 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 infoschema_test
import (
"crypto/tls"
"fmt"
"math"
"net"
"net/http/httptest"
"os"
"runtime"
"strings"
"time"
"github.com/gorilla/mux"
. "github.com/pingcap/check"
"github.com/pingcap/failpoint"
"github.com/pingcap/fn"
"github.com/pingcap/parser/auth"
"github.com/pingcap/parser/model"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/parser/terror"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/infoschema"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/meta/autoid"
plannercore "github.com/pingcap/tidb/planner/core"
"github.com/pingcap/tidb/server"
"github.com/pingcap/tidb/session"
"github.com/pingcap/tidb/store/helper"
"github.com/pingcap/tidb/store/mockstore"
"github.com/pingcap/tidb/util"
"github.com/pingcap/tidb/util/kvcache"
"github.com/pingcap/tidb/util/pdapi"
"github.com/pingcap/tidb/util/set"
"github.com/pingcap/tidb/util/testkit"
"github.com/pingcap/tidb/util/testleak"
"github.com/pingcap/tidb/util/testutil"
"google.golang.org/grpc"
)
var _ = Suite(&testTableSuite{&testTableSuiteBase{}})
var _ = SerialSuites(&testClusterTableSuite{testTableSuiteBase: &testTableSuiteBase{}})
type testTableSuite struct {
*testTableSuiteBase
}
type testTableSuiteBase struct {
store kv.Storage
dom *domain.Domain
}
func (s *testTableSuiteBase) SetUpSuite(c *C) {
testleak.BeforeTest()
var err error
s.store, err = mockstore.NewMockStore()
c.Assert(err, IsNil)
session.DisableStats4Test()
s.dom, err = session.BootstrapSession(s.store)
c.Assert(err, IsNil)
}
func (s *testTableSuiteBase) TearDownSuite(c *C) {
s.dom.Close()
s.store.Close()
testleak.AfterTest(c)()
}
func (s *testTableSuiteBase) newTestKitWithRoot(c *C) *testkit.TestKit {
tk := testkit.NewTestKitWithInit(c, s.store)
c.Assert(tk.Se.Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil), IsTrue)
return tk
}
func (s *testTableSuiteBase) newTestKitWithPlanCache(c *C) *testkit.TestKit {
tk := testkit.NewTestKit(c, s.store)
var err error
tk.Se, err = session.CreateSession4TestWithOpt(s.store, &session.Opt{
PreparedPlanCache: kvcache.NewSimpleLRUCache(100, 0.1, math.MaxUint64),
})
c.Assert(err, IsNil)
tk.GetConnectionID()
c.Assert(tk.Se.Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil), IsTrue)
return tk
}
type testClusterTableSuite struct {
*testTableSuiteBase
rpcserver *grpc.Server
httpServer *httptest.Server
mockAddr string
listenAddr string
startTime time.Time
}
func (s *testClusterTableSuite) SetUpSuite(c *C) {
s.testTableSuiteBase.SetUpSuite(c)
s.rpcserver, s.listenAddr = s.setUpRPCService(c, ":0")
s.httpServer, s.mockAddr = s.setUpMockPDHTTPServer()
s.startTime = time.Now()
}
func (s *testClusterTableSuite) setUpRPCService(c *C, addr string) (*grpc.Server, string) {
lis, err := net.Listen("tcp", addr)
c.Assert(err, IsNil)
// Fix issue 9836
sm := &mockSessionManager{make(map[uint64]*util.ProcessInfo, 1)}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "root",
Host: "127.0.0.1",
Command: mysql.ComQuery,
}
srv := server.NewRPCServer(config.GetGlobalConfig(), s.dom, sm)
port := lis.Addr().(*net.TCPAddr).Port
addr = fmt.Sprintf("127.0.0.1:%d", port)
go func() {
err = srv.Serve(lis)
c.Assert(err, IsNil)
}()
config.UpdateGlobal(func(conf *config.Config) {
conf.Status.StatusPort = uint(port)
})
return srv, addr
}
func (s *testClusterTableSuite) setUpMockPDHTTPServer() (*httptest.Server, string) {
// mock PD http server
router := mux.NewRouter()
server := httptest.NewServer(router)
// mock store stats stat
mockAddr := strings.TrimPrefix(server.URL, "http://")
router.Handle(pdapi.Stores, fn.Wrap(func() (*helper.StoresStat, error) {
return &helper.StoresStat{
Count: 1,
Stores: []helper.StoreStat{
{
Store: helper.StoreBaseStat{
ID: 1,
Address: "127.0.0.1:20160",
State: 0,
StateName: "Up",
Version: "4.0.0-alpha",
StatusAddress: mockAddr,
GitHash: "mock-tikv-githash",
StartTimestamp: s.startTime.Unix(),
},
},
},
}, nil
}))
// mock PD API
router.Handle(pdapi.ClusterVersion, fn.Wrap(func() (string, error) { return "4.0.0-alpha", nil }))
router.Handle(pdapi.Status, fn.Wrap(func() (interface{}, error) {
return struct {
GitHash string `json:"git_hash"`
StartTimestamp int64 `json:"start_timestamp"`
}{
GitHash: "mock-pd-githash",
StartTimestamp: s.startTime.Unix(),
}, nil
}))
var mockConfig = func() (map[string]interface{}, error) {
configuration := map[string]interface{}{
"key1": "value1",
"key2": map[string]string{
"nest1": "n-value1",
"nest2": "n-value2",
},
"key3": map[string]interface{}{
"nest1": "n-value1",
"nest2": "n-value2",
"key4": map[string]string{
"nest3": "n-value4",
"nest4": "n-value5",
},
},
}
return configuration, nil
}
// pd config
router.Handle(pdapi.Config, fn.Wrap(mockConfig))
// TiDB/TiKV config
router.Handle("/config", fn.Wrap(mockConfig))
return server, mockAddr
}
func (s *testClusterTableSuite) TearDownSuite(c *C) {
if s.rpcserver != nil {
s.rpcserver.Stop()
s.rpcserver = nil
}
if s.httpServer != nil {
s.httpServer.Close()
}
s.testTableSuiteBase.TearDownSuite(c)
}
func (s *testTableSuite) TestInfoschemaFieldValue(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists numschema, timeschema")
tk.MustExec("create table numschema(i int(2), f float(4,2), d decimal(4,3))")
tk.MustExec("create table timeschema(d date, dt datetime(3), ts timestamp(3), t time(4), y year(4))")
tk.MustExec("create table strschema(c char(3), c2 varchar(3), b blob(3), t text(3))")
tk.MustExec("create table floatschema(a float, b double(7, 3))")
tk.MustQuery("select CHARACTER_MAXIMUM_LENGTH,CHARACTER_OCTET_LENGTH,NUMERIC_PRECISION,NUMERIC_SCALE,DATETIME_PRECISION from information_schema.COLUMNS where table_name='numschema'").
Check(testkit.Rows("<nil> <nil> 2 0 <nil>", "<nil> <nil> 4 2 <nil>", "<nil> <nil> 4 3 <nil>")) // FIXME: for mysql first one will be "<nil> <nil> 10 0 <nil>"
tk.MustQuery("select CHARACTER_MAXIMUM_LENGTH,CHARACTER_OCTET_LENGTH,NUMERIC_PRECISION,NUMERIC_SCALE,DATETIME_PRECISION from information_schema.COLUMNS where table_name='timeschema'").
Check(testkit.Rows("<nil> <nil> <nil> <nil> <nil>", "<nil> <nil> <nil> <nil> 3", "<nil> <nil> <nil> <nil> 3", "<nil> <nil> <nil> <nil> 4", "<nil> <nil> <nil> <nil> <nil>"))
tk.MustQuery("select CHARACTER_MAXIMUM_LENGTH,CHARACTER_OCTET_LENGTH,NUMERIC_PRECISION,NUMERIC_SCALE,DATETIME_PRECISION from information_schema.COLUMNS where table_name='strschema'").
Check(testkit.Rows("3 3 <nil> <nil> <nil>", "3 3 <nil> <nil> <nil>", "3 3 <nil> <nil> <nil>", "3 3 <nil> <nil> <nil>")) // FIXME: for mysql last two will be "255 255 <nil> <nil> <nil>", "255 255 <nil> <nil> <nil>"
tk.MustQuery("select NUMERIC_SCALE from information_schema.COLUMNS where table_name='floatschema'").
Check(testkit.Rows("<nil>", "3"))
// Test for auto increment ID.
tk.MustExec("drop table if exists t")
tk.MustExec("create table t (c int auto_increment primary key, d int)")
tk.MustQuery("select auto_increment from information_schema.tables where table_name='t'").Check(
testkit.Rows("1"))
tk.MustExec("insert into t(c, d) values(1, 1)")
tk.MustQuery("select auto_increment from information_schema.tables where table_name='t'").Check(
testkit.Rows("2"))
tk.MustQuery("show create table t").Check(
testkit.Rows("" +
"t CREATE TABLE `t` (\n" +
" `c` int(11) NOT NULL AUTO_INCREMENT,\n" +
" `d` int(11) DEFAULT NULL,\n" +
" PRIMARY KEY (`c`)\n" +
") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin AUTO_INCREMENT=30002"))
// Test auto_increment for table without auto_increment column
tk.MustExec("drop table if exists t")
tk.MustExec("create table t (d int)")
tk.MustQuery("select auto_increment from information_schema.tables where table_name='t'").Check(
testkit.Rows("<nil>"))
tk.MustExec("create user xxx")
// Test for length of enum and set
tk.MustExec("drop table if exists t")
tk.MustExec("create table t ( s set('a','bc','def','ghij') default NULL, e1 enum('a', 'ab', 'cdef'), s2 SET('1','2','3','4','1585','ONE','TWO','Y','N','THREE'))")
tk.MustQuery("select column_name, character_maximum_length from information_schema.columns where table_schema=Database() and table_name = 't' and column_name = 's'").Check(
testkit.Rows("s 13"))
tk.MustQuery("select column_name, character_maximum_length from information_schema.columns where table_schema=Database() and table_name = 't' and column_name = 's2'").Check(
testkit.Rows("s2 30"))
tk.MustQuery("select column_name, character_maximum_length from information_schema.columns where table_schema=Database() and table_name = 't' and column_name = 'e1'").Check(
testkit.Rows("e1 4"))
tk1 := testkit.NewTestKit(c, s.store)
tk1.MustExec("use test")
c.Assert(tk1.Se.Auth(&auth.UserIdentity{
Username: "xxx",
Hostname: "127.0.0.1",
}, nil, nil), IsTrue)
tk1.MustQuery("select distinct(table_schema) from information_schema.tables").Check(testkit.Rows("INFORMATION_SCHEMA"))
// Fix issue 9836
sm := &mockSessionManager{make(map[uint64]*util.ProcessInfo, 1)}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "root",
Host: "127.0.0.1",
Command: mysql.ComQuery,
StmtCtx: tk.Se.GetSessionVars().StmtCtx,
}
tk.Se.SetSessionManager(sm)
tk.MustQuery("SELECT user,host,command FROM information_schema.processlist;").Check(testkit.Rows("root 127.0.0.1 Query"))
// Test for all system tables `TABLE_TYPE` is `SYSTEM VIEW`.
rows1 := tk.MustQuery("select count(*) from information_schema.tables where table_schema in ('INFORMATION_SCHEMA','PERFORMANCE_SCHEMA','METRICS_SCHEMA');").Rows()
rows2 := tk.MustQuery("select count(*) from information_schema.tables where table_schema in ('INFORMATION_SCHEMA','PERFORMANCE_SCHEMA','METRICS_SCHEMA') and table_type = 'SYSTEM VIEW';").Rows()
c.Assert(rows1, DeepEquals, rows2)
// Test for system table default value
tk.MustQuery("show create table information_schema.PROCESSLIST").Check(
testkit.Rows("" +
"PROCESSLIST CREATE TABLE `PROCESSLIST` (\n" +
" `ID` bigint(21) unsigned NOT NULL DEFAULT 0,\n" +
" `USER` varchar(16) NOT NULL DEFAULT '',\n" +
" `HOST` varchar(64) NOT NULL DEFAULT '',\n" +
" `DB` varchar(64) DEFAULT NULL,\n" +
" `COMMAND` varchar(16) NOT NULL DEFAULT '',\n" +
" `TIME` int(7) NOT NULL DEFAULT 0,\n" +
" `STATE` varchar(7) DEFAULT NULL,\n" +
" `INFO` binary(512) DEFAULT NULL,\n" +
" `MEM` bigint(21) unsigned DEFAULT NULL,\n" +
" `TxnStart` varchar(64) NOT NULL DEFAULT ''\n" +
") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin"))
}
func (s *testTableSuite) TestCharacterSetCollations(c *C) {
tk := testkit.NewTestKit(c, s.store)
// Test charset/collation in information_schema.COLUMNS table.
tk.MustExec("DROP DATABASE IF EXISTS charset_collate_test")
tk.MustExec("CREATE DATABASE charset_collate_test; USE charset_collate_test")
// TODO: Specifying the charset for national char/varchar should not be supported.
tk.MustExec(`CREATE TABLE charset_collate_col_test(
c_int int,
c_float float,
c_bit bit,
c_bool bool,
c_char char(1) charset ascii collate ascii_bin,
c_nchar national char(1) charset ascii collate ascii_bin,
c_binary binary,
c_varchar varchar(1) charset ascii collate ascii_bin,
c_nvarchar national varchar(1) charset ascii collate ascii_bin,
c_varbinary varbinary(1),
c_year year,
c_date date,
c_time time,
c_datetime datetime,
c_timestamp timestamp,
c_blob blob,
c_tinyblob tinyblob,
c_mediumblob mediumblob,
c_longblob longblob,
c_text text charset ascii collate ascii_bin,
c_tinytext tinytext charset ascii collate ascii_bin,
c_mediumtext mediumtext charset ascii collate ascii_bin,
c_longtext longtext charset ascii collate ascii_bin,
c_json json,
c_enum enum('1') charset ascii collate ascii_bin,
c_set set('1') charset ascii collate ascii_bin
)`)
tk.MustQuery(`SELECT column_name, character_set_name, collation_name
FROM information_schema.COLUMNS
WHERE table_schema = "charset_collate_test" AND table_name = "charset_collate_col_test"
ORDER BY column_name`,
).Check(testkit.Rows(
"c_binary <nil> <nil>",
"c_bit <nil> <nil>",
"c_blob <nil> <nil>",
"c_bool <nil> <nil>",
"c_char ascii ascii_bin",
"c_date <nil> <nil>",
"c_datetime <nil> <nil>",
"c_enum ascii ascii_bin",
"c_float <nil> <nil>",
"c_int <nil> <nil>",
"c_json <nil> <nil>",
"c_longblob <nil> <nil>",
"c_longtext ascii ascii_bin",
"c_mediumblob <nil> <nil>",
"c_mediumtext ascii ascii_bin",
"c_nchar ascii ascii_bin",
"c_nvarchar ascii ascii_bin",
"c_set ascii ascii_bin",
"c_text ascii ascii_bin",
"c_time <nil> <nil>",
"c_timestamp <nil> <nil>",
"c_tinyblob <nil> <nil>",
"c_tinytext ascii ascii_bin",
"c_varbinary <nil> <nil>",
"c_varchar ascii ascii_bin",
"c_year <nil> <nil>",
))
tk.MustExec("DROP DATABASE charset_collate_test")
}
func (s *testTableSuite) TestCurrentTimestampAsDefault(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("DROP DATABASE IF EXISTS default_time_test")
tk.MustExec("CREATE DATABASE default_time_test; USE default_time_test")
tk.MustExec(`CREATE TABLE default_time_table(
c_datetime datetime,
c_datetime_default datetime default current_timestamp,
c_datetime_default_2 datetime(2) default current_timestamp(2),
c_timestamp timestamp,
c_timestamp_default timestamp default current_timestamp,
c_timestamp_default_3 timestamp(3) default current_timestamp(3),
c_varchar_default varchar(20) default "current_timestamp",
c_varchar_default_3 varchar(20) default "current_timestamp(3)",
c_varchar_default_on_update datetime default current_timestamp on update current_timestamp,
c_varchar_default_on_update_fsp datetime(3) default current_timestamp(3) on update current_timestamp(3),
c_varchar_default_with_case varchar(20) default "cUrrent_tImestamp"
);`)
tk.MustQuery(`SELECT column_name, column_default, extra
FROM information_schema.COLUMNS
WHERE table_schema = "default_time_test" AND table_name = "default_time_table"
ORDER BY column_name`,
).Check(testkit.Rows(
"c_datetime <nil> ",
"c_datetime_default CURRENT_TIMESTAMP ",
"c_datetime_default_2 CURRENT_TIMESTAMP(2) ",
"c_timestamp <nil> ",
"c_timestamp_default CURRENT_TIMESTAMP ",
"c_timestamp_default_3 CURRENT_TIMESTAMP(3) ",
"c_varchar_default current_timestamp ",
"c_varchar_default_3 current_timestamp(3) ",
"c_varchar_default_on_update CURRENT_TIMESTAMP DEFAULT_GENERATED on update CURRENT_TIMESTAMP",
"c_varchar_default_on_update_fsp CURRENT_TIMESTAMP(3) DEFAULT_GENERATED on update CURRENT_TIMESTAMP(3)",
"c_varchar_default_with_case cUrrent_tImestamp ",
))
tk.MustExec("DROP DATABASE default_time_test")
}
type mockSessionManager struct {
processInfoMap map[uint64]*util.ProcessInfo
}
func (sm *mockSessionManager) ShowProcessList() map[uint64]*util.ProcessInfo {
return sm.processInfoMap
}
func (sm *mockSessionManager) GetProcessInfo(id uint64) (*util.ProcessInfo, bool) {
rs, ok := sm.processInfoMap[id]
return rs, ok
}
func (sm *mockSessionManager) Kill(connectionID uint64, query bool) {}
func (sm *mockSessionManager) UpdateTLSConfig(cfg *tls.Config) {}
func (s *testTableSuite) TestSomeTables(c *C) {
se, err := session.CreateSession4Test(s.store)
c.Assert(err, IsNil)
tk := testkit.NewTestKit(c, s.store)
tk.Se = se
sm := &mockSessionManager{make(map[uint64]*util.ProcessInfo, 2)}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "user-1",
Host: "localhost",
DB: "information_schema",
Command: byte(1),
State: 1,
Info: "do something",
StmtCtx: tk.Se.GetSessionVars().StmtCtx,
}
sm.processInfoMap[2] = &util.ProcessInfo{
ID: 2,
User: "user-2",
Host: "localhost",
DB: "test",
Command: byte(2),
State: 2,
Info: strings.Repeat("x", 101),
StmtCtx: tk.Se.GetSessionVars().StmtCtx,
}
tk.Se.SetSessionManager(sm)
tk.MustQuery("select * from information_schema.PROCESSLIST order by ID;").Sort().Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s 0 ", "in transaction", "do something"),
fmt.Sprintf("2 user-2 localhost test Init DB 9223372036 %s %s 0 ", "autocommit", strings.Repeat("x", 101)),
))
tk.MustQuery("SHOW PROCESSLIST;").Sort().Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s", "in transaction", "do something"),
fmt.Sprintf("2 user-2 localhost test Init DB 9223372036 %s %s", "autocommit", strings.Repeat("x", 100)),
))
tk.MustQuery("SHOW FULL PROCESSLIST;").Sort().Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s", "in transaction", "do something"),
fmt.Sprintf("2 user-2 localhost test Init DB 9223372036 %s %s", "autocommit", strings.Repeat("x", 101)),
))
sm = &mockSessionManager{make(map[uint64]*util.ProcessInfo, 2)}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "user-1",
Host: "localhost",
DB: "information_schema",
Command: byte(1),
State: 1,
StmtCtx: tk.Se.GetSessionVars().StmtCtx,
}
sm.processInfoMap[2] = &util.ProcessInfo{
ID: 2,
User: "user-2",
Host: "localhost",
Command: byte(2),
State: 2,
Info: strings.Repeat("x", 101),
StmtCtx: tk.Se.GetSessionVars().StmtCtx,
CurTxnStartTS: 410090409861578752,
}
tk.Se.SetSessionManager(sm)
tk.Se.GetSessionVars().TimeZone = time.UTC
tk.MustQuery("select * from information_schema.PROCESSLIST order by ID;").Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s 0 ", "in transaction", "<nil>"),
fmt.Sprintf("2 user-2 localhost <nil> Init DB 9223372036 %s %s 0 07-29 03:26:05.158(410090409861578752)", "autocommit", strings.Repeat("x", 101)),
))
tk.MustQuery("SHOW PROCESSLIST;").Sort().Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s", "in transaction", "<nil>"),
fmt.Sprintf("2 user-2 localhost <nil> Init DB 9223372036 %s %s", "autocommit", strings.Repeat("x", 100)),
))
tk.MustQuery("SHOW FULL PROCESSLIST;").Sort().Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s", "in transaction", "<nil>"),
fmt.Sprintf("2 user-2 localhost <nil> Init DB 9223372036 %s %s", "autocommit", strings.Repeat("x", 101)),
))
tk.MustQuery("select * from information_schema.PROCESSLIST where db is null;").Check(
testkit.Rows(
fmt.Sprintf("2 user-2 localhost <nil> Init DB 9223372036 %s %s 0 07-29 03:26:05.158(410090409861578752)", "autocommit", strings.Repeat("x", 101)),
))
tk.MustQuery("select * from information_schema.PROCESSLIST where Info is null;").Check(
testkit.Rows(
fmt.Sprintf("1 user-1 localhost information_schema Quit 9223372036 %s %s 0 ", "in transaction", "<nil>"),
))
}
func prepareSlowLogfile(c *C, slowLogFileName string) {
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
c.Assert(err, IsNil)
_, err = f.Write([]byte(`# Time: 2019-02-12T19:33:56.571953+08:00
# Txn_start_ts: 406315658548871171
# User@Host: root[root] @ localhost [127.0.0.1]
# Conn_ID: 6
# Query_time: 4.895492
# Parse_time: 0.4
# Compile_time: 0.2
# Rewrite_time: 0.000000003 Preproc_subqueries: 2 Preproc_subqueries_time: 0.000000002
# Optimize_time: 0.00000001
# Wait_TS: 0.000000003
# LockKeys_time: 1.71 Request_count: 1 Prewrite_time: 0.19 Wait_prewrite_binlog_time: 0.21 Commit_time: 0.01 Commit_backoff_time: 0.18 Backoff_types: [txnLock] Resolve_lock_time: 0.03 Write_keys: 15 Write_size: 480 Prewrite_region: 1 Txn_retry: 8
# Cop_time: 0.3824278 Process_time: 0.161 Request_count: 1 Total_keys: 100001 Process_keys: 100000
# Wait_time: 0.101
# Backoff_time: 0.092
# DB: test
# Is_internal: false
# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
# Stats: t1:1,t2:2
# Cop_proc_avg: 0.1 Cop_proc_p90: 0.2 Cop_proc_max: 0.03 Cop_proc_addr: 127.0.0.1:20160
# Cop_wait_avg: 0.05 Cop_wait_p90: 0.6 Cop_wait_max: 0.8 Cop_wait_addr: 0.0.0.0:20160
# Mem_max: 70724
# Disk_max: 65536
# Plan_from_cache: true
# Succ: true
# Plan: abcd
# Plan_digest: 60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4
# Prev_stmt: update t set i = 2;
select * from t_slim;`))
c.Assert(f.Close(), IsNil)
c.Assert(err, IsNil)
}
func (s *testTableSuite) TestTableRowIDShardingInfo(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("DROP DATABASE IF EXISTS `sharding_info_test_db`")
tk.MustExec("CREATE DATABASE `sharding_info_test_db`")
assertShardingInfo := func(tableName string, expectInfo interface{}) {
querySQL := fmt.Sprintf("select tidb_row_id_sharding_info from information_schema.tables where table_schema = 'sharding_info_test_db' and table_name = '%s'", tableName)
info := tk.MustQuery(querySQL).Rows()[0][0]
if expectInfo == nil {
c.Assert(info, Equals, "<nil>")
} else {
c.Assert(info, Equals, expectInfo)
}
}
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t1` (a int)")
assertShardingInfo("t1", "NOT_SHARDED")
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t2` (a int key)")
assertShardingInfo("t2", "NOT_SHARDED(PK_IS_HANDLE)")
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t3` (a int) SHARD_ROW_ID_BITS=4")
assertShardingInfo("t3", "SHARD_BITS=4")
tk.MustExec("CREATE VIEW `sharding_info_test_db`.`tv` AS select 1")
assertShardingInfo("tv", nil)
testFunc := func(dbName string, expectInfo interface{}) {
dbInfo := model.DBInfo{Name: model.NewCIStr(dbName)}
tableInfo := model.TableInfo{}
info := infoschema.GetShardingInfo(&dbInfo, &tableInfo)
c.Assert(info, Equals, expectInfo)
}
testFunc("information_schema", nil)
testFunc("mysql", nil)
testFunc("performance_schema", nil)
testFunc("uucc", "NOT_SHARDED")
testutil.ConfigTestUtils.SetupAutoRandomTestConfig()
defer testutil.ConfigTestUtils.RestoreAutoRandomTestConfig()
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t4` (a bigint key auto_random)")
assertShardingInfo("t4", "PK_AUTO_RANDOM_BITS=5")
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t5` (a bigint key auto_random(1))")
assertShardingInfo("t5", "PK_AUTO_RANDOM_BITS=1")
tk.MustExec("DROP DATABASE `sharding_info_test_db`")
}
func (s *testTableSuite) TestSlowQuery(c *C) {
tk := testkit.NewTestKit(c, s.store)
// Prepare slow log file.
slowLogFileName := "tidb_slow.log"
prepareSlowLogfile(c, slowLogFileName)
defer os.Remove(slowLogFileName)
tk.MustExec(fmt.Sprintf("set @@tidb_slow_query_file='%v'", slowLogFileName))
tk.MustExec("set time_zone = '+08:00';")
re := tk.MustQuery("select * from information_schema.slow_query")
re.Check(testutil.RowsWithSep("|",
"2019-02-12 19:33:56.571953|406315658548871171|root|localhost|6|4.895492|0.4|0.2|0.000000003|2|0.000000002|0.00000001|0.000000003|0.19|0.21|0.01|0|0.18|[txnLock]|0.03|0|15|480|1|8|0.3824278|0.161|0.101|0.092|1.71|1|100001|100000|test||0|42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772|t1:1,t2:2|0.1|0.2|0.03|127.0.0.1:20160|0.05|0.6|0.8|0.0.0.0:20160|70724|65536|1|1|abcd|60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4|update t set i = 2;|select * from t_slim;"))
tk.MustExec("set time_zone = '+00:00';")
re = tk.MustQuery("select * from information_schema.slow_query")
re.Check(testutil.RowsWithSep("|", "2019-02-12 11:33:56.571953|406315658548871171|root|localhost|6|4.895492|0.4|0.2|0.000000003|2|0.000000002|0.00000001|0.000000003|0.19|0.21|0.01|0|0.18|[txnLock]|0.03|0|15|480|1|8|0.3824278|0.161|0.101|0.092|1.71|1|100001|100000|test||0|42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772|t1:1,t2:2|0.1|0.2|0.03|127.0.0.1:20160|0.05|0.6|0.8|0.0.0.0:20160|70724|65536|1|1|abcd|60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4|update t set i = 2;|select * from t_slim;"))
// Test for long query.
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
c.Assert(err, IsNil)
defer f.Close()
_, err = f.Write([]byte(`
# Time: 2019-02-13T19:33:56.571953+08:00
`))
c.Assert(err, IsNil)
sql := "select * from "
for len(sql) < 5000 {
sql += "abcdefghijklmnopqrstuvwxyz_1234567890_qwertyuiopasdfghjklzxcvbnm"
}
sql += ";"
_, err = f.Write([]byte(sql))
c.Assert(err, IsNil)
c.Assert(f.Close(), IsNil)
re = tk.MustQuery("select query from information_schema.slow_query order by time desc limit 1")
rows := re.Rows()
c.Assert(rows[0][0], Equals, sql)
}
func (s *testTableSuite) TestColumnStatistics(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustQuery("select * from information_schema.column_statistics").Check(testkit.Rows())
}
func (s *testTableSuite) TestReloadDropDatabase(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("create database test_dbs")
tk.MustExec("use test_dbs")
tk.MustExec("create table t1 (a int)")
tk.MustExec("create table t2 (a int)")
tk.MustExec("create table t3 (a int)")
is := domain.GetDomain(tk.Se).InfoSchema()
t2, err := is.TableByName(model.NewCIStr("test_dbs"), model.NewCIStr("t2"))
c.Assert(err, IsNil)
tk.MustExec("drop database test_dbs")
is = domain.GetDomain(tk.Se).InfoSchema()
_, err = is.TableByName(model.NewCIStr("test_dbs"), model.NewCIStr("t2"))
c.Assert(terror.ErrorEqual(infoschema.ErrTableNotExists, err), IsTrue)
_, ok := is.TableByID(t2.Meta().ID)
c.Assert(ok, IsFalse)
}
func (s *testClusterTableSuite) TestForClusterServerInfo(c *C) {
tk := testkit.NewTestKit(c, s.store)
instances := []string{
strings.Join([]string{"tidb", s.listenAddr, s.listenAddr, "mock-version,mock-githash"}, ","),
strings.Join([]string{"pd", s.listenAddr, s.listenAddr, "mock-version,mock-githash"}, ","),
strings.Join([]string{"tikv", s.listenAddr, s.listenAddr, "mock-version,mock-githash"}, ","),
}
fpExpr := `return("` + strings.Join(instances, ";") + `")`
fpName := "github.com/pingcap/tidb/infoschema/mockClusterInfo"
c.Assert(failpoint.Enable(fpName, fpExpr), IsNil)
defer func() { c.Assert(failpoint.Disable(fpName), IsNil) }()
cases := []struct {
sql string
types set.StringSet
addrs set.StringSet
names set.StringSet
skipOnOS string
}{
{
sql: "select * from information_schema.CLUSTER_LOAD;",
types: set.NewStringSet("tidb", "tikv", "pd"),
addrs: set.NewStringSet(s.listenAddr),
names: set.NewStringSet("cpu", "memory", "net"),
},
{
sql: "select * from information_schema.CLUSTER_HARDWARE;",
types: set.NewStringSet("tidb", "tikv", "pd"),
addrs: set.NewStringSet(s.listenAddr),
names: set.NewStringSet("cpu", "memory", "net", "disk"),
},
{
sql: "select * from information_schema.CLUSTER_SYSTEMINFO;",
types: set.NewStringSet("tidb", "tikv", "pd"),
addrs: set.NewStringSet(s.listenAddr),
names: set.NewStringSet("system"),
// This test get empty result and fails on the windows platform.
// Because the underlying implementation use `sysctl` command to get the result
// and there is no such command on windows.
// https://github.com/pingcap/sysutil/blob/2bfa6dc40bcd4c103bf684fba528ae4279c7ec9f/system_info.go#L50
skipOnOS: "windows",
},
}
for _, cas := range cases {
if cas.skipOnOS == runtime.GOOS {
continue
}
result := tk.MustQuery(cas.sql)
rows := result.Rows()
c.Assert(len(rows), Greater, 0)
gotTypes := set.StringSet{}
gotAddrs := set.StringSet{}
gotNames := set.StringSet{}
for _, row := range rows {
gotTypes.Insert(row[0].(string))
gotAddrs.Insert(row[1].(string))
gotNames.Insert(row[2].(string))
}
c.Assert(gotTypes, DeepEquals, cas.types, Commentf("sql: %s", cas.sql))
c.Assert(gotAddrs, DeepEquals, cas.addrs, Commentf("sql: %s", cas.sql))
c.Assert(gotNames, DeepEquals, cas.names, Commentf("sql: %s", cas.sql))
}
}
func (s *testTableSuite) TestSystemSchemaID(c *C) {
uniqueIDMap := make(map[int64]string)
s.checkSystemSchemaTableID(c, "information_schema", autoid.InformationSchemaDBID, 1, 10000, uniqueIDMap)
s.checkSystemSchemaTableID(c, "performance_schema", autoid.PerformanceSchemaDBID, 10000, 20000, uniqueIDMap)
s.checkSystemSchemaTableID(c, "metrics_schema", autoid.MetricSchemaDBID, 20000, 30000, uniqueIDMap)
}
func (s *testTableSuite) checkSystemSchemaTableID(c *C, dbName string, dbID, start, end int64, uniqueIDMap map[int64]string) {
is := s.dom.InfoSchema()
c.Assert(is, NotNil)
db, ok := is.SchemaByName(model.NewCIStr(dbName))
c.Assert(ok, IsTrue)
c.Assert(db.ID, Equals, dbID)
// Test for information_schema table id.
tables := is.SchemaTables(model.NewCIStr(dbName))
c.Assert(len(tables), Greater, 0)
for _, tbl := range tables {
tid := tbl.Meta().ID
comment := Commentf("table name is %v", tbl.Meta().Name)
c.Assert(tid&autoid.SystemSchemaIDFlag, Greater, int64(0), comment)
c.Assert(tid&^autoid.SystemSchemaIDFlag, Greater, start, comment)
c.Assert(tid&^autoid.SystemSchemaIDFlag, Less, end, comment)
name, ok := uniqueIDMap[tid]
c.Assert(ok, IsFalse, Commentf("schema id of %v is duplicate with %v, both is %v", name, tbl.Meta().Name, tid))
uniqueIDMap[tid] = tbl.Meta().Name.O
}
}
func (s *testClusterTableSuite) TestSelectClusterTable(c *C) {
tk := s.newTestKitWithRoot(c)
slowLogFileName := "tidb-slow.log"
prepareSlowLogfile(c, slowLogFileName)
defer os.Remove(slowLogFileName)
for i := 0; i < 2; i++ {
tk.MustExec("use information_schema")
tk.MustExec(fmt.Sprintf("set @@tidb_enable_streaming=%d", i))
tk.MustExec("set @@global.tidb_enable_stmt_summary=1")
tk.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY`").Check(testkit.Rows("1"))
tk.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY` where time='2019-02-12 19:33:56.571953'").Check(testkit.Rows("1"))
tk.MustQuery("select count(*) from `CLUSTER_PROCESSLIST`").Check(testkit.Rows("1"))
tk.MustQuery("select * from `CLUSTER_PROCESSLIST`").Check(testkit.Rows(fmt.Sprintf(":10080 1 root 127.0.0.1 <nil> Query 9223372036 %s <nil> 0 ", "")))
tk.MustQuery("select query_time, conn_id from `CLUSTER_SLOW_QUERY` order by time limit 1").Check(testkit.Rows("4.895492 6"))
tk.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY` group by digest").Check(testkit.Rows("1"))
tk.MustQuery("select digest, count(*) from `CLUSTER_SLOW_QUERY` group by digest").Check(testkit.Rows("42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772 1"))
tk.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY` where time > now() group by digest").Check(testkit.Rows())
re := tk.MustQuery("select * from `CLUSTER_statements_summary`")
c.Assert(re, NotNil)
c.Assert(len(re.Rows()) > 0, IsTrue)
// Test for TiDB issue 14915.
re = tk.MustQuery("select sum(exec_count*avg_mem) from cluster_statements_summary_history group by schema_name,digest,digest_text;")
c.Assert(re, NotNil)
c.Assert(len(re.Rows()) > 0, IsTrue)
tk.MustQuery("select * from `CLUSTER_statements_summary_history`")
c.Assert(re, NotNil)
c.Assert(len(re.Rows()) > 0, IsTrue)
tk.MustExec("set @@global.tidb_enable_stmt_summary=0")
re = tk.MustQuery("select * from `CLUSTER_statements_summary`")
c.Assert(re, NotNil)
c.Assert(len(re.Rows()) == 0, IsTrue)
tk.MustQuery("select * from `CLUSTER_statements_summary_history`")
c.Assert(re, NotNil)
c.Assert(len(re.Rows()) == 0, IsTrue)
}
}
func (s *testClusterTableSuite) TestSelectClusterTablePrivelege(c *C) {
tk := testkit.NewTestKit(c, s.store)
slowLogFileName := "tidb-slow.log"
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
c.Assert(err, IsNil)
_, err = f.Write([]byte(
`# Time: 2019-02-12T19:33:57.571953+08:00
# User@Host: user2 [user2] @ 127.0.0.1 [127.0.0.1]
select * from t2;
# Time: 2019-02-12T19:33:56.571953+08:00
# User@Host: user1 [user1] @ 127.0.0.1 [127.0.0.1]
select * from t1;
# Time: 2019-02-12T19:33:58.571953+08:00
# User@Host: user2 [user2] @ 127.0.0.1 [127.0.0.1]
select * from t3;
# Time: 2019-02-12T19:33:59.571953+08:00
select * from t3;
`))
c.Assert(f.Close(), IsNil)
c.Assert(err, IsNil)
defer os.Remove(slowLogFileName)
tk.MustExec("use information_schema")
tk.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY`").Check(testkit.Rows("4"))
tk.MustQuery("select count(*) from `SLOW_QUERY`").Check(testkit.Rows("4"))
tk.MustQuery("select count(*) from `CLUSTER_PROCESSLIST`").Check(testkit.Rows("1"))
tk.MustQuery("select * from `CLUSTER_PROCESSLIST`").Check(testkit.Rows(fmt.Sprintf(":10080 1 root 127.0.0.1 <nil> Query 9223372036 %s <nil> 0 ", "")))
tk.MustExec("create user user1")
tk.MustExec("create user user2")
user1 := testkit.NewTestKit(c, s.store)
user1.MustExec("use information_schema")
c.Assert(user1.Se.Auth(&auth.UserIdentity{
Username: "user1",
Hostname: "127.0.0.1",
}, nil, nil), IsTrue)
user1.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY`").Check(testkit.Rows("1"))
user1.MustQuery("select count(*) from `SLOW_QUERY`").Check(testkit.Rows("1"))
user1.MustQuery("select user,query from `CLUSTER_SLOW_QUERY`").Check(testkit.Rows("user1 select * from t1;"))
user2 := testkit.NewTestKit(c, s.store)
user2.MustExec("use information_schema")
c.Assert(user2.Se.Auth(&auth.UserIdentity{
Username: "user2",
Hostname: "127.0.0.1",
}, nil, nil), IsTrue)
user2.MustQuery("select count(*) from `CLUSTER_SLOW_QUERY`").Check(testkit.Rows("2"))
user2.MustQuery("select user,query from `CLUSTER_SLOW_QUERY` order by query").Check(testkit.Rows("user2 select * from t2;", "user2 select * from t3;"))
}
func (s *testTableSuite) TestSelectHiddenColumn(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("DROP DATABASE IF EXISTS `test_hidden`;")
tk.MustExec("CREATE DATABASE `test_hidden`;")
tk.MustExec("USE test_hidden;")
tk.MustExec("CREATE TABLE hidden (a int , b int, c int);")
tk.MustQuery("select count(*) from INFORMATION_SCHEMA.COLUMNS where table_name = 'hidden'").Check(testkit.Rows("3"))
tb, err := s.dom.InfoSchema().TableByName(model.NewCIStr("test_hidden"), model.NewCIStr("hidden"))
c.Assert(err, IsNil)
colInfo := tb.Meta().Columns
// Set column b to hidden
colInfo[1].Hidden = true
tk.MustQuery("select count(*) from INFORMATION_SCHEMA.COLUMNS where table_name = 'hidden'").Check(testkit.Rows("2"))
tk.MustQuery("select count(*) from INFORMATION_SCHEMA.COLUMNS where table_name = 'hidden' and column_name = 'b'").Check(testkit.Rows("0"))
// Set column b to visible
colInfo[1].Hidden = false
tk.MustQuery("select count(*) from INFORMATION_SCHEMA.COLUMNS where table_name = 'hidden' and column_name = 'b'").Check(testkit.Rows("1"))
// Set a, b ,c to hidden
colInfo[0].Hidden = true
colInfo[1].Hidden = true
colInfo[2].Hidden = true
tk.MustQuery("select count(*) from INFORMATION_SCHEMA.COLUMNS where table_name = 'hidden'").Check(testkit.Rows("0"))
}
func (s *testTableSuite) TestFormatVersion(c *C) {
// Test for defaultVersions.
defaultVersions := []string{"5.7.25-TiDB-None", "5.7.25-TiDB-8.0.18", "5.7.25-TiDB-8.0.18-beta.1", "5.7.25-TiDB-v4.0.0-beta-446-g5268094af"}
defaultRes := []string{"None", "8.0.18", "8.0.18-beta.1", "4.0.0-beta"}
for i, v := range defaultVersions {
version := infoschema.FormatVersion(v, true)
c.Assert(version, Equals, defaultRes[i])
}
// Test for versions user set.
versions := []string{"8.0.18", "5.7.25-TiDB", "8.0.18-TiDB-4.0.0-beta.1"}
res := []string{"8.0.18", "5.7.25-TiDB", "8.0.18-TiDB-4.0.0-beta.1"}
for i, v := range versions {
version := infoschema.FormatVersion(v, false)
c.Assert(version, Equals, res[i])
}
}
// Test statements_summary.
func (s *testTableSuite) TestStmtSummaryTable(c *C) {
tk := s.newTestKitWithRoot(c)
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
tk.MustQuery("select column_comment from information_schema.columns " +
"where table_name='STATEMENTS_SUMMARY' and column_name='STMT_TYPE'",
).Check(testkit.Rows("Statement type"))
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a int, b varchar(10), key k(a))")
// Clear all statements.
tk.MustExec("set session tidb_enable_stmt_summary = 0")
tk.MustExec("set session tidb_enable_stmt_summary = ''")
tk.MustExec("set global tidb_enable_stmt_summary = 1")
tk.MustQuery("select @@global.tidb_enable_stmt_summary").Check(testkit.Rows("1"))
// Invalidate the cache manually so that tidb_enable_stmt_summary works immediately.
s.dom.GetGlobalVarsCache().Disable()
// Disable refreshing summary.
tk.MustExec("set global tidb_stmt_summary_refresh_interval = 999999999")
tk.MustQuery("select @@global.tidb_stmt_summary_refresh_interval").Check(testkit.Rows("999999999"))
// Create a new session to test.
tk = s.newTestKitWithRoot(c)
// Test INSERT
tk.MustExec("insert into t values(1, 'a')")
tk.MustExec("insert into t values(2, 'b')")
tk.MustExec("insert into t VALUES(3, 'c')")
tk.MustExec("/**/insert into t values(4, 'd')")
tk.MustQuery(`select stmt_type, schema_name, table_names, index_names, exec_count, sum_cop_task_num, avg_total_keys,
max_total_keys, avg_processed_keys, max_processed_keys, avg_write_keys, max_write_keys, avg_prewrite_regions,
max_prewrite_regions, avg_affected_rows, query_sample_text, plan
from information_schema.statements_summary
where digest_text like 'insert into t%'`,
).Check(testkit.Rows("Insert test test.t <nil> 4 0 0 0 0 0 2 2 1 1 1 insert into t values(1, 'a') "))
// Test point get.
tk.MustExec("drop table if exists p")
tk.MustExec("create table p(a int primary key, b int)")
for i := 1; i < 3; i++ {
tk.MustQuery("select b from p where a=1")
expectedResult := fmt.Sprintf("%d \tid \ttask\testRows\toperator info\n\tPoint_Get_1\troot\t1 \ttable:p, handle:1 %s", i, "test.p")
// Also make sure that the plan digest is not empty
tk.MustQuery(`select exec_count, plan, table_names
from information_schema.statements_summary
where digest_text like 'select b from p%' and plan_digest != ''`,
).Check(testkit.Rows(expectedResult))
}
// Point get another database.
tk.MustQuery("select variable_value from mysql.tidb where variable_name = 'system_tz'")
tk.MustQuery(`select table_names
from information_schema.statements_summary
where digest_text like 'select variable_value%' and schema_name='test'`,
).Check(testkit.Rows("mysql.tidb"))
// Test `create database`.
tk.MustExec("create database if not exists test")
tk.MustQuery(`select table_names
from information_schema.statements_summary
where digest_text like 'create database%' and schema_name='test'`,
).Check(testkit.Rows("<nil>"))
// Test SELECT.
const failpointName = "github.com/pingcap/tidb/planner/core/mockPlanRowCount"
c.Assert(failpoint.Enable(failpointName, "return(100)"), IsNil)
defer func() { c.Assert(failpoint.Disable(failpointName), IsNil) }()
tk.MustQuery("select * from t where a=2")
tk.MustQuery(`select stmt_type, schema_name, table_names, index_names, exec_count, sum_cop_task_num, avg_total_keys,
max_total_keys, avg_processed_keys, max_processed_keys, avg_write_keys, max_write_keys, avg_prewrite_regions,
max_prewrite_regions, avg_affected_rows, query_sample_text, plan
from information_schema.statements_summary
where digest_text like 'select * from t%'`,
).Check(testkit.Rows("Select test test.t t:k 1 2 0 0 0 0 0 0 0 0 0 select * from t where a=2 \tid \ttask \testRows\toperator info\n" +
"\tIndexLookUp_10\troot \t100 \t\n" +
"\t├─IndexScan_8 \tcop[tikv]\t100 \ttable:t, index:k(a), range:[2,2], keep order:false, stats:pseudo\n" +
"\t└─TableScan_9 \tcop[tikv]\t100 \ttable:t, keep order:false, stats:pseudo"))
// select ... order by
tk.MustQuery(`select stmt_type, schema_name, table_names, index_names, exec_count, sum_cop_task_num, avg_total_keys,
max_total_keys, avg_processed_keys, max_processed_keys, avg_write_keys, max_write_keys, avg_prewrite_regions,
max_prewrite_regions, avg_affected_rows, query_sample_text, plan
from information_schema.statements_summary
order by exec_count desc limit 1`,
).Check(testkit.Rows("Insert test test.t <nil> 4 0 0 0 0 0 2 2 1 1 1 insert into t values(1, 'a') "))
// Test different plans with same digest.
c.Assert(failpoint.Enable(failpointName, "return(1000)"), IsNil)
tk.MustQuery("select * from t where a=3")
tk.MustQuery(`select stmt_type, schema_name, table_names, index_names, exec_count, sum_cop_task_num, avg_total_keys,
max_total_keys, avg_processed_keys, max_processed_keys, avg_write_keys, max_write_keys, avg_prewrite_regions,
max_prewrite_regions, avg_affected_rows, query_sample_text, plan
from information_schema.statements_summary
where digest_text like 'select * from t%'`,
).Check(testkit.Rows("Select test test.t t:k 2 4 0 0 0 0 0 0 0 0 0 select * from t where a=2 \tid \ttask \testRows\toperator info\n" +
"\tIndexLookUp_10\troot \t100 \t\n" +
"\t├─IndexScan_8 \tcop[tikv]\t100 \ttable:t, index:k(a), range:[2,2], keep order:false, stats:pseudo\n" +
"\t└─TableScan_9 \tcop[tikv]\t100 \ttable:t, keep order:false, stats:pseudo"))