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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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package infoschema_test
import (
"crypto/tls"
"fmt"
"math"
"os"
"strings"
"testing"
"time"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/errno"
"github.com/pingcap/tidb/infoschema"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/meta/autoid"
"github.com/pingcap/tidb/parser"
"github.com/pingcap/tidb/parser/auth"
"github.com/pingcap/tidb/parser/model"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/pingcap/tidb/session"
"github.com/pingcap/tidb/session/txninfo"
"github.com/pingcap/tidb/sessionctx/variable"
"github.com/pingcap/tidb/testkit"
"github.com/pingcap/tidb/util"
"github.com/pingcap/tidb/util/kvcache"
"github.com/stretchr/testify/require"
)
func newTestKitWithRoot(t *testing.T, store kv.Storage) *testkit.TestKit {
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
require.True(t, tk.Session().Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil))
return tk
}
func newTestKitWithPlanCache(t *testing.T, store kv.Storage) *testkit.TestKit {
tk := testkit.NewTestKit(t, store)
se, err := session.CreateSession4TestWithOpt(store, &session.Opt{PreparedPlanCache: kvcache.NewSimpleLRUCache(100, 0.1, math.MaxUint64)})
require.NoError(t, err)
tk.SetSession(se)
tk.RefreshConnectionID()
require.True(t, tk.Session().Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil))
return tk
}
func TestInfoSchemaFieldValue(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, 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 12 <nil> <nil> <nil>", "3 12 <nil> <nil> <nil>", "255 255 <nil> <nil> <nil>", "255 1020 <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`) /*T![clustered_index] CLUSTERED */\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 = '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(t, store)
tk1.MustExec("use test")
require.True(t, tk1.Session().Auth(&auth.UserIdentity{
Username: "xxx",
Hostname: "127.0.0.1",
}, nil, nil))
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), nil}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "root",
Host: "127.0.0.1",
Command: mysql.ComQuery,
StmtCtx: tk.Session().GetSessionVars().StmtCtx,
}
tk.Session().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()
require.Equal(t, rows2, rows1)
// 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` longtext DEFAULT NULL,\n" +
" `DIGEST` varchar(64) DEFAULT '',\n" +
" `MEM` bigint(21) unsigned DEFAULT NULL,\n" +
" `DISK` bigint(21) unsigned DEFAULT NULL,\n" +
" `TxnStart` varchar(64) NOT NULL DEFAULT ''\n" +
") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin"))
tk.MustQuery("show create table information_schema.cluster_log").Check(
testkit.Rows("" +
"CLUSTER_LOG CREATE TABLE `CLUSTER_LOG` (\n" +
" `TIME` varchar(32) DEFAULT NULL,\n" +
" `TYPE` varchar(64) DEFAULT NULL,\n" +
" `INSTANCE` varchar(64) DEFAULT NULL,\n" +
" `LEVEL` varchar(8) DEFAULT NULL,\n" +
" `MESSAGE` longtext DEFAULT NULL\n" +
") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin"))
}
func TestCharacterSetCollations(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, 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 TestCurrentTimestampAsDefault(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, 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
txnInfo []*txninfo.TxnInfo
}
func (sm *mockSessionManager) ShowTxnList() []*txninfo.TxnInfo {
return sm.txnInfo
}
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(_ uint64, _ bool) {}
func (sm *mockSessionManager) KillAllConnections() {}
func (sm *mockSessionManager) UpdateTLSConfig(_ *tls.Config) {}
func (sm *mockSessionManager) ServerID() uint64 { return 1 }
func (sm *mockSessionManager) StoreInternalSession(se interface{}) {
}
func (sm *mockSessionManager) DeleteInternalSession(se interface{}) {
}
func (sm *mockSessionManager) GetInternalSessionStartTSList() []uint64 {
return nil
}
func TestSomeTables(t *testing.T) {
store := testkit.CreateMockStore(t)
se, err := session.CreateSession4Test(store)
require.NoError(t, err)
tk := testkit.NewTestKit(t, store)
tk.SetSession(se)
sm := &mockSessionManager{make(map[uint64]*util.ProcessInfo, 2), nil}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "user-1",
Host: "localhost",
Port: "",
DB: "information_schema",
Command: byte(1),
Digest: "abc1",
State: 1,
Info: "do something",
StmtCtx: tk.Session().GetSessionVars().StmtCtx,
}
sm.processInfoMap[2] = &util.ProcessInfo{
ID: 2,
User: "user-2",
Host: "localhost",
Port: "",
DB: "test",
Command: byte(2),
Digest: "abc2",
State: 2,
Info: strings.Repeat("x", 101),
StmtCtx: tk.Session().GetSessionVars().StmtCtx,
}
sm.processInfoMap[3] = &util.ProcessInfo{
ID: 3,
User: "user-3",
Host: "127.0.0.1",
Port: "12345",
DB: "test",
Command: byte(2),
Digest: "abc3",
State: 1,
Info: "check port",
StmtCtx: tk.Session().GetSessionVars().StmtCtx,
}
tk.Session().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 abc1 0 0 ", "in transaction", "do something"),
fmt.Sprintf("2 user-2 localhost test Init DB 9223372036 %s %s abc2 0 0 ", "autocommit", strings.Repeat("x", 101)),
fmt.Sprintf("3 user-3 127.0.0.1:12345 test Init DB 9223372036 %s %s abc3 0 0 ", "in transaction", "check port"),
))
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)),
fmt.Sprintf("3 user-3 127.0.0.1:12345 test Init DB 9223372036 %s %s", "in transaction", "check port"),
))
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)),
fmt.Sprintf("3 user-3 127.0.0.1:12345 test Init DB 9223372036 %s %s", "in transaction", "check port"),
))
sm = &mockSessionManager{make(map[uint64]*util.ProcessInfo, 2), nil}
sm.processInfoMap[1] = &util.ProcessInfo{
ID: 1,
User: "user-1",
Host: "localhost",
DB: "information_schema",
Command: byte(1),
Digest: "abc1",
State: 1,
}
sm.processInfoMap[2] = &util.ProcessInfo{
ID: 2,
User: "user-2",
Host: "localhost",
Command: byte(2),
Digest: "abc2",
State: 2,
Info: strings.Repeat("x", 101),
CurTxnStartTS: 410090409861578752,
}
tk.Session().SetSessionManager(sm)
tk.Session().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 abc1 0 0 ", "in transaction", "<nil>"),
fmt.Sprintf("2 user-2 localhost <nil> Init DB 9223372036 %s %s abc2 0 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 abc2 0 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 abc1 0 0 ", "in transaction", "<nil>"),
))
}
func prepareSlowLogfile(t *testing.T, slowLogFileName string) {
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
require.NoError(t, err)
_, 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
# Exec_retry_time: 0.12 Exec_retry_count: 57
# 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
# Rocksdb_delete_skipped_count: 100 Rocksdb_key_skipped_count: 10 Rocksdb_block_cache_hit_count: 10 Rocksdb_block_read_count: 10 Rocksdb_block_read_byte: 100
# 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
# Result_rows: 10
# Succ: true
# Plan: abcd
# Plan_digest: 60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4
# Prev_stmt: update t set i = 2;
select * from t_slim;
# Time: 2021-09-08T14:39:54.506967433+08:00
# Txn_start_ts: 427578666238083075
# User@Host: root[root] @ 172.16.0.0 [172.16.0.0]
# Conn_ID: 40507
# Query_time: 25.571605962
# Parse_time: 0.002923536
# Compile_time: 0.006800973
# Rewrite_time: 0.002100764
# Optimize_time: 0
# Wait_TS: 0.000015801
# Prewrite_time: 25.542014572 Commit_time: 0.002294647 Get_commit_ts_time: 0.000605473 Commit_backoff_time: 12.483 Backoff_types: [tikvRPC regionMiss tikvRPC regionMiss regionMiss] Write_keys: 624 Write_size: 172064 Prewrite_region: 60
# DB: rtdb
# Is_internal: false
# Digest: 124acb3a0bec903176baca5f9da00b4e7512a41c93b417923f26502edeb324cc
# Num_cop_tasks: 0
# Mem_max: 856544
# Prepared: false
# Plan_from_cache: false
# Plan_from_binding: false
# Has_more_results: false
# KV_total: 86.635049185
# PD_total: 0.015486658
# Backoff_total: 100.054
# Write_sql_response_total: 0
# Succ: true
INSERT INTO ...;
`))
require.NoError(t, f.Close())
require.NoError(t, err)
}
func TestTableRowIDShardingInfo(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, 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 {
require.Equal(t, "<nil>", info)
} else {
require.Equal(t, expectInfo, info)
}
}
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)
require.Equal(t, expectInfo, info)
}
testFunc("information_schema", nil)
testFunc("mysql", nil)
testFunc("performance_schema", nil)
testFunc("uucc", "NOT_SHARDED")
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t4` (a bigint key clustered auto_random)")
assertShardingInfo("t4", "PK_AUTO_RANDOM_BITS=5")
tk.MustExec("CREATE TABLE `sharding_info_test_db`.`t5` (a bigint key clustered auto_random(1))")
assertShardingInfo("t5", "PK_AUTO_RANDOM_BITS=1")
tk.MustExec("DROP DATABASE `sharding_info_test_db`")
}
func TestSlowQuery(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, store)
// Prepare slow log file.
slowLogFileName := "tidb_slow.log"
prepareSlowLogfile(t, slowLogFileName)
defer func() { require.NoError(t, 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(testkit.RowsWithSep("|", "2019-02-12 19:33:56.571953|406315658548871171|root|localhost|6|57|0.12|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|100|10|10|10|100|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|0|0|0|0|10||0|1|0|0|1|0|0|abcd|60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4||update t set i = 2;|select * from t_slim;",
"2021-09-08|14:39:54.506967|427578666238083075|root|172.16.0.0|40507|0|0|25.571605962|0.002923536|0.006800973|0.002100764|0|0|0|0.000015801|25.542014572|0|0.002294647|0.000605473|12.483|[tikvRPC regionMiss tikvRPC regionMiss regionMiss]|0|0|624|172064|60|0|0|0|0|0|0|0|0|0|0|0|0|0|0|rtdb||0|124acb3a0bec903176baca5f9da00b4e7512a41c93b417923f26502edeb324cc||0|0|0||0|0|0||856544|0|86.635049185|0.015486658|100.054|0|0||0|1|0|0|0|0|0|||||INSERT INTO ...;",
))
tk.MustExec("set time_zone = '+00:00';")
re = tk.MustQuery("select * from information_schema.slow_query")
re.Check(testkit.RowsWithSep("|", "2019-02-12 11:33:56.571953|406315658548871171|root|localhost|6|57|0.12|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|100|10|10|10|100|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|0|0|0|0|10||0|1|0|0|1|0|0|abcd|60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4||update t set i = 2;|select * from t_slim;",
"2021-09-08|06:39:54.506967|427578666238083075|root|172.16.0.0|40507|0|0|25.571605962|0.002923536|0.006800973|0.002100764|0|0|0|0.000015801|25.542014572|0|0.002294647|0.000605473|12.483|[tikvRPC regionMiss tikvRPC regionMiss regionMiss]|0|0|624|172064|60|0|0|0|0|0|0|0|0|0|0|0|0|0|0|rtdb||0|124acb3a0bec903176baca5f9da00b4e7512a41c93b417923f26502edeb324cc||0|0|0||0|0|0||856544|0|86.635049185|0.015486658|100.054|0|0||0|1|0|0|0|0|0|||||INSERT INTO ...;",
))
// Test for long query.
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
require.NoError(t, err)
defer func() { require.NoError(t, f.Close()) }()
_, err = f.Write([]byte(`
# Time: 2019-02-13T19:33:56.571953+08:00
`))
require.NoError(t, err)
sql := "select * from "
for len(sql) < 5000 {
sql += "abcdefghijklmnopqrstuvwxyz_1234567890_qwertyuiopasdfghjklzxcvbnm"
}
sql += ";"
_, err = f.Write([]byte(sql))
require.NoError(t, err)
re = tk.MustQuery("select query from information_schema.slow_query order by time desc limit 1")
rows := re.Rows()
require.Equal(t, sql, rows[0][0])
}
func TestColumnStatistics(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, store)
tk.MustQuery("select * from information_schema.column_statistics").Check(testkit.Rows())
}
func TestTableIfHasColumn(t *testing.T) {
columnName := variable.SlowLogHasMoreResults
store := testkit.CreateMockStore(t)
slowLogFileName := "tidb-slow.log"
f, err := os.OpenFile(slowLogFileName, os.O_CREATE|os.O_WRONLY, 0644)
require.NoError(t, err)
_, 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]
# Has_more_results: true
INSERT INTO ...;
`))
require.NoError(t, f.Close())
require.NoError(t, err)
defer func() { require.NoError(t, os.Remove(slowLogFileName)) }()
tk := testkit.NewTestKit(t, store)
//check schema
tk.MustQuery(`select COUNT(*) from information_schema.columns
WHERE table_name = 'slow_query' and column_name = '` + columnName + `'`).
Check(testkit.Rows("1"))
//check select
tk.MustQuery(`select ` + columnName +
` from information_schema.slow_query`).Check(testkit.Rows("1"))
}
func TestReloadDropDatabase(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, 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.Session()).InfoSchema()
t2, err := is.TableByName(model.NewCIStr("test_dbs"), model.NewCIStr("t2"))
require.NoError(t, err)
tk.MustExec("drop database test_dbs")
is = domain.GetDomain(tk.Session()).InfoSchema()
_, err = is.TableByName(model.NewCIStr("test_dbs"), model.NewCIStr("t2"))
require.True(t, terror.ErrorEqual(infoschema.ErrTableNotExists, err))
_, ok := is.TableByID(t2.Meta().ID)
require.False(t, ok)
}
func TestSystemSchemaID(t *testing.T) {
_, dom := testkit.CreateMockStoreAndDomain(t)
uniqueIDMap := make(map[int64]string)
checkSystemSchemaTableID(t, dom, "information_schema", autoid.InformationSchemaDBID, 1, 10000, uniqueIDMap)
checkSystemSchemaTableID(t, dom, "performance_schema", autoid.PerformanceSchemaDBID, 10000, 20000, uniqueIDMap)
checkSystemSchemaTableID(t, dom, "metrics_schema", autoid.MetricSchemaDBID, 20000, 30000, uniqueIDMap)
}
func checkSystemSchemaTableID(t *testing.T, dom *domain.Domain, dbName string, dbID, start, end int64, uniqueIDMap map[int64]string) {
is := dom.InfoSchema()
require.NotNil(t, is)
db, ok := is.SchemaByName(model.NewCIStr(dbName))
require.True(t, ok)
require.Equal(t, dbID, db.ID)
// Test for information_schema table id.
tables := is.SchemaTables(model.NewCIStr(dbName))
require.Greater(t, len(tables), 0)
for _, tbl := range tables {
tid := tbl.Meta().ID
require.Greaterf(t, tid&autoid.SystemSchemaIDFlag, int64(0), "table name is %v", tbl.Meta().Name)
require.Greaterf(t, tid&^autoid.SystemSchemaIDFlag, start, "table name is %v", tbl.Meta().Name)
require.Lessf(t, tid&^autoid.SystemSchemaIDFlag, end, "table name is %v", tbl.Meta().Name)
name, ok := uniqueIDMap[tid]
require.Falsef(t, ok, "schema id of %v is duplicate with %v, both is %v", name, tbl.Meta().Name, tid)
uniqueIDMap[tid] = tbl.Meta().Name.O
}
}
func TestSelectHiddenColumn(t *testing.T) {
store, dom := testkit.CreateMockStoreAndDomain(t)
tk := testkit.NewTestKit(t, 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 := dom.InfoSchema().TableByName(model.NewCIStr("test_hidden"), model.NewCIStr("hidden"))
require.NoError(t, err)
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 TestFormatVersion(t *testing.T) {
// 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.FormatTiDBVersion(v, true)
require.Equal(t, defaultRes[i], version)
}
// 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.FormatTiDBVersion(v, false)
require.Equal(t, res[i], version)
}
versions = []string{"v4.0.12", "4.0.12", "v5.0.1"}
resultVersion := []string{"4.0.12", "4.0.12", "5.0.1"}
for i, versionString := range versions {
require.Equal(t, infoschema.FormatStoreServerVersion(versionString), resultVersion[i])
}
}
// TestStmtSummaryTable Test statements_summary.
func TestStmtSummaryTable(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := newTestKitWithRoot(t, store)
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 global tidb_enable_stmt_summary = 0")
tk.MustExec("set global tidb_enable_stmt_summary = 1")
tk.MustQuery("select @@global.tidb_enable_stmt_summary").Check(testkit.Rows("1"))
// 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 = newTestKitWithRoot(t, store)
// 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')")
sql := "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 " +
"from information_schema.statements_summary " +
"where digest_text like 'insert into `t`%'"
tk.MustQuery(sql).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
sql = "select exec_count, plan, table_names from information_schema.statements_summary " +
"where digest_text like 'select `b` from `p`%' and plan_digest != ''"
tk.MustQuery(sql).Check(testkit.Rows(expectedResult))
}
// Point get another database.
tk.MustQuery("select variable_value from mysql.tidb where variable_name = 'system_tz'")
// Test for Encode plan cache.
p1 := tk.Session().GetSessionVars().StmtCtx.GetEncodedPlan()
require.Greater(t, len(p1), 0)
rows := tk.MustQuery("select tidb_decode_plan('" + p1 + "');").Rows()
require.Equal(t, 1, len(rows))
require.Equal(t, 1, len(rows[0]))
require.Regexp(t, "\n.*Point_Get.*table.tidb, index.PRIMARY.VARIABLE_NAME", rows[0][0])
sql = "select table_names from information_schema.statements_summary " +
"where digest_text like 'select `variable_value`%' and `schema_name`='test'"
tk.MustQuery(sql).Check(testkit.Rows("mysql.tidb"))
// Test `create database`.
tk.MustExec("create database if not exists test")
// Test for Encode plan cache.
p2 := tk.Session().GetSessionVars().StmtCtx.GetEncodedPlan()
require.Equal(t, "", p2)
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"
require.NoError(t, failpoint.Enable(failpointName, "return(100)"))
defer func() { require.NoError(t, failpoint.Disable(failpointName)) }()
tk.MustQuery("select * from t where a=2")
// sum_cop_task_num is always 0 if tidb_enable_collect_execution_info disabled
sql = "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`%'"
tk.MustQuery(sql).Check(testkit.Rows("Select test test.t t:k 1 0 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├─IndexRangeScan_8(Build)\tcop[tikv]\t100 \ttable:t, index:k(a), range:[2,2], keep order:false, stats:pseudo\n" +
"\t└─TableRowIDScan_9(Probe)\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
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.
require.NoError(t, failpoint.Enable(failpointName, "return(1000)"))
tk.MustQuery("select * from t where a=3")
sql = "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`%'"
tk.MustQuery(sql).Check(testkit.Rows(
"Select test test.t t:k 2 0 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├─IndexRangeScan_8(Build)\tcop[tikv]\t100 \ttable:t, index:k(a), range:[2,2], keep order:false, stats:pseudo\n" +
"\t└─TableRowIDScan_9(Probe)\tcop[tikv]\t100 \ttable:t, keep order:false, stats:pseudo"))
// Disable it again.
tk.MustExec("set global tidb_enable_stmt_summary = false")
defer tk.MustExec("set global tidb_enable_stmt_summary = 1")
tk.MustQuery("select @@global.tidb_enable_stmt_summary").Check(testkit.Rows("0"))
// Create a new session to test
tk = newTestKitWithRoot(t, store)
// This statement shouldn't be summarized.
tk.MustQuery("select * from t where a=2")
// The table should be cleared.
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`,
).Check(testkit.Rows())
tk.MustExec("SET GLOBAL tidb_enable_stmt_summary = on")
// It should work immediately.
tk.MustExec("begin")
tk.MustExec("insert into t values(1, 'a')")
tk.MustExec("commit")
sql = "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, prev_sample_text " +
"from information_schema.statements_summary " +
"where digest_text like 'insert into `t`%'"
tk.MustQuery(sql).Check(testkit.Rows("Insert test test.t <nil> 1 0 0 0 0 0 0 0 0 0 1 insert into t values(1, 'a') "))
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, prev_sample_text
from information_schema.statements_summary
where digest_text='commit'`,
).Check(testkit.Rows("Commit test <nil> <nil> 1 0 0 0 0 0 2 2 1 1 0 commit insert into t values(1, 'a')"))
tk.MustQuery("select * from t where a=2")
sql = "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`%'"
tk.MustQuery(sql).Check(testkit.Rows("Select test test.t t:k 1 0 0 0 0 0 0 0 0 0 0 select * from t where a=2 \tid \ttask \testRows\toperator info\n" +
"\tIndexLookUp_10 \troot \t1000 \t\n" +
"\t├─IndexRangeScan_8(Build)\tcop[tikv]\t1000 \ttable:t, index:k(a), range:[2,2], keep order:false, stats:pseudo\n" +
"\t└─TableRowIDScan_9(Probe)\tcop[tikv]\t1000 \ttable:t, keep order:false, stats:pseudo"))
// Disable it in global scope.
tk.MustExec("set global tidb_enable_stmt_summary = false")
// Create a new session to test.
tk = newTestKitWithRoot(t, store)
// Statement summary is disabled.
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`,
).Check(testkit.Rows())
tk.MustExec("set global tidb_enable_stmt_summary = on")
tk.MustExec("set global tidb_stmt_summary_history_size = 24")
}
func TestStmtSummaryTablePrivilege(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := newTestKitWithRoot(t, store)
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a int, b varchar(10), key k(a))")
defer tk.MustExec("drop table if exists t")
// 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"))
// Clear all statements.
tk.MustExec("set global tidb_enable_stmt_summary = 0")
tk.MustExec("set global tidb_enable_stmt_summary = 1")
// Create a new user to test statements summary table privilege
tk.MustExec("drop user if exists 'test_user'@'localhost'")
tk.MustExec("create user 'test_user'@'localhost'")
defer tk.MustExec("drop user if exists 'test_user'@'localhost'")
tk.MustExec("grant select on test.t to 'test_user'@'localhost'")
tk.MustExec("select * from t where a=1")
result := tk.MustQuery("select * from information_schema.statements_summary where digest_text like 'select * from `t`%'")
require.Equal(t, 1, len(result.Rows()))
result = tk.MustQuery("select * from information_schema.statements_summary_history where digest_text like 'select * from `t`%'")
require.Equal(t, 1, len(result.Rows()))
tk1 := testkit.NewTestKit(t, store)
tk1.MustExec("use test")
tk1.Session().Auth(&auth.UserIdentity{
Username: "test_user",
Hostname: "localhost",
AuthUsername: "test_user",
AuthHostname: "localhost",
}, nil, nil)
result = tk1.MustQuery("select * from information_schema.statements_summary where digest_text like 'select * from `t`%'")
// Ordinary users can not see others' records
require.Equal(t, 0, len(result.Rows()))
result = tk1.MustQuery("select * from information_schema.statements_summary_history where digest_text like 'select * from `t`%'")
require.Equal(t, 0, len(result.Rows()))
tk1.MustExec("select * from t where b=1")
result = tk1.MustQuery("select * from information_schema.statements_summary where digest_text like 'select * from `t`%'")
// Ordinary users can see his own records
require.Equal(t, 1, len(result.Rows()))
result = tk1.MustQuery("select * from information_schema.statements_summary_history where digest_text like 'select * from `t`%'")
require.Equal(t, 1, len(result.Rows()))
tk.MustExec("grant process on *.* to 'test_user'@'localhost'")
result = tk1.MustQuery("select * from information_schema.statements_summary where digest_text like 'select * from `t`%'")
// Users with 'PROCESS' privileges can query all records.
require.Equal(t, 2, len(result.Rows()))
result = tk1.MustQuery("select * from information_schema.statements_summary_history where digest_text like 'select * from `t`%'")
require.Equal(t, 2, len(result.Rows()))
}
func TestCapturePrivilege(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := newTestKitWithRoot(t, store)
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a int, b varchar(10), key k(a))")
defer tk.MustExec("drop table if exists t")
tk.MustExec("drop table if exists t1")
tk.MustExec("create table t1(a int, b varchar(10), key k(a))")
defer tk.MustExec("drop table if exists t1")
// 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"))
// Clear all statements.
tk.MustExec("set global tidb_enable_stmt_summary = 0")
tk.MustExec("set global tidb_enable_stmt_summary = 1")
// Create a new user to test statements summary table privilege
tk.MustExec("drop user if exists 'test_user'@'localhost'")
tk.MustExec("create user 'test_user'@'localhost'")
defer tk.MustExec("drop user if exists 'test_user'@'localhost'")
tk.MustExec("grant select on test.t1 to 'test_user'@'localhost'")
tk.MustExec("select * from t where a=1")
tk.MustExec("select * from t where a=1")
tk.MustExec("admin capture bindings")
rows := tk.MustQuery("show global bindings").Rows()
require.Len(t, rows, 1)
tk1 := testkit.NewTestKit(t, store)
tk1.MustExec("use test")
tk1.Session().Auth(&auth.UserIdentity{
Username: "test_user",
Hostname: "localhost",
AuthUsername: "test_user",
AuthHostname: "localhost",
}, nil, nil)