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db07c2e0c80d745bdf3030826bdad7fd29da8f9e
tidb/executor/set_test.go

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// Copyright 2016 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 executor_test
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"testing"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/errno"
"github.com/pingcap/tidb/executor"
"github.com/pingcap/tidb/expression"
"github.com/pingcap/tidb/infoschema"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/pingcap/tidb/sessionctx"
"github.com/pingcap/tidb/sessionctx/variable"
"github.com/pingcap/tidb/testkit"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/mock"
topsqlstate "github.com/pingcap/tidb/util/topsql/state"
"github.com/stretchr/testify/require"
)
func TestSetVar(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustExec("SET @a = 1;")
tk.MustExec(`SET @a = "1";`)
tk.MustExec("SET @a = null;")
tk.MustExec("SET @@global.autocommit = 1;")
// TODO: this test case should returns error.
// err := tk.ExecToErr("SET @@global.autocommit = null;")
// c.Assert(err, NotNil)
tk.MustExec("SET @@autocommit = 1;")
require.Error(t, tk.ExecToErr("SET @@autocommit = null;"))
require.Error(t, tk.ExecToErr("SET @@date_format = 1;"))
require.Error(t, tk.ExecToErr("SET @@rewriter_enabled = 1;"))
require.Error(t, tk.ExecToErr("SET xxx = abcd;"))
require.Error(t, tk.ExecToErr("SET @@global.a = 1;"))
require.Error(t, tk.ExecToErr("SET @@global.timestamp = 1;"))
// For issue 998
tk.MustExec("SET @issue998a=1, @issue998b=5;")
tk.MustQuery(`select @issue998a, @issue998b;`).Check(testkit.Rows("1 5"))
tk.MustExec("SET @@autocommit=0, @issue998a=2;")
tk.MustQuery(`select @issue998a, @@autocommit;`).Check(testkit.Rows("2 0"))
tk.MustExec("SET @@global.autocommit=1, @issue998b=6;")
tk.MustQuery(`select @issue998b, @@global.autocommit;`).Check(testkit.Rows("6 1"))
// For issue 4302
tk.MustExec("use test;drop table if exists x;create table x(a int);insert into x value(1);")
tk.MustExec("SET @issue4302=(select a from x limit 1);")
tk.MustQuery(`select @issue4302;`).Check(testkit.Rows("1"))
// Set default
// {ScopeGlobal | ScopeSession, "low_priority_updates", "OFF"},
// For global var
tk.MustQuery(`select @@global.low_priority_updates;`).Check(testkit.Rows("0"))
tk.MustExec(`set @@global.low_priority_updates="ON";`)
tk.MustQuery(`select @@global.low_priority_updates;`).Check(testkit.Rows("1"))
tk.MustExec(`set @@global.low_priority_updates=DEFAULT;`) // It will be set to default var value.
tk.MustQuery(`select @@global.low_priority_updates;`).Check(testkit.Rows("0"))
// For session
tk.MustQuery(`select @@session.low_priority_updates;`).Check(testkit.Rows("0"))
tk.MustExec(`set @@global.low_priority_updates="ON";`)
tk.MustExec(`set @@session.low_priority_updates=DEFAULT;`) // It will be set to global var value.
tk.MustQuery(`select @@session.low_priority_updates;`).Check(testkit.Rows("1"))
// For mysql jdbc driver issue.
tk.MustQuery(`select @@session.tx_read_only;`).Check(testkit.Rows("0"))
// Test session variable states.
vars := tk.Session().(sessionctx.Context).GetSessionVars()
require.NoError(t, tk.Session().CommitTxn(context.TODO()))
tk.MustExec("set @@autocommit = 1")
require.False(t, vars.InTxn())
require.True(t, vars.IsAutocommit())
tk.MustExec("set @@autocommit = 0")
require.False(t, vars.IsAutocommit())
tk.MustExec("set @@sql_mode = 'strict_trans_tables'")
require.True(t, vars.StrictSQLMode)
tk.MustExec("set @@sql_mode = ''")
require.False(t, vars.StrictSQLMode)
tk.MustExec("set names utf8")
charset, collation := vars.GetCharsetInfo()
require.Equal(t, "utf8", charset)
require.Equal(t, "utf8_bin", collation)
tk.MustExec("set names latin1 collate latin1_bin")
charset, collation = vars.GetCharsetInfo()
require.Equal(t, "latin1", charset)
require.Equal(t, "latin1_bin", collation)
tk.MustExec("set names utf8 collate default")
charset, collation = vars.GetCharsetInfo()
require.Equal(t, "utf8", charset)
require.Equal(t, "utf8_bin", collation)
expectErrMsg := "[ddl:1273]Unknown collation: 'non_exist_collation'"
tk.MustGetErrMsg("set names utf8 collate non_exist_collation", expectErrMsg)
tk.MustGetErrMsg("set @@session.collation_server='non_exist_collation'", expectErrMsg)
tk.MustGetErrMsg("set @@session.collation_database='non_exist_collation'", expectErrMsg)
tk.MustGetErrMsg("set @@session.collation_connection='non_exist_collation'", expectErrMsg)
tk.MustGetErrMsg("set @@global.collation_server='non_exist_collation'", expectErrMsg)
tk.MustGetErrMsg("set @@global.collation_database='non_exist_collation'", expectErrMsg)
tk.MustGetErrMsg("set @@global.collation_connection='non_exist_collation'", expectErrMsg)
expectErrMsg = "[parser:1115]Unknown character set: 'boguscharsetname'"
tk.MustGetErrMsg("set names boguscharsetname", expectErrMsg)
tk.MustExec("set character_set_results = NULL")
tk.MustQuery("select @@character_set_results").Check(testkit.Rows(""))
tk.MustExec("set @@session.ddl_slow_threshold=12345")
tk.MustQuery("select @@session.ddl_slow_threshold").Check(testkit.Rows("12345"))
require.Equal(t, uint32(12345), variable.DDLSlowOprThreshold)
tk.MustExec("set session ddl_slow_threshold=\"54321\"")
tk.MustQuery("show variables like 'ddl_slow_threshold'").Check(testkit.Rows("ddl_slow_threshold 54321"))
require.Equal(t, uint32(54321), variable.DDLSlowOprThreshold)
// Test set transaction isolation level, which is equivalent to setting variable "tx_isolation".
tk.MustExec("SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED")
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// error
err := tk.ExecToErr("SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// Fails
err = tk.ExecToErr("SET GLOBAL TRANSACTION ISOLATION LEVEL SERIALIZABLE")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("REPEATABLE-READ"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("REPEATABLE-READ"))
// test synonyms variables
tk.MustExec("SET SESSION tx_isolation = 'READ-COMMITTED'")
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
err = tk.ExecToErr("SET SESSION tx_isolation = 'READ-UNCOMMITTED'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// fails
err = tk.ExecToErr("SET SESSION transaction_isolation = 'SERIALIZABLE'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// fails
err = tk.ExecToErr("SET GLOBAL transaction_isolation = 'SERIALIZABLE'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("REPEATABLE-READ"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("REPEATABLE-READ"))
err = tk.ExecToErr("SET GLOBAL transaction_isolation = 'READ-UNCOMMITTED'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("REPEATABLE-READ"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("REPEATABLE-READ"))
err = tk.ExecToErr("SET GLOBAL tx_isolation = 'SERIALIZABLE'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("REPEATABLE-READ"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("REPEATABLE-READ"))
// Even the transaction fail, set session variable would success.
tk.MustExec("BEGIN")
tk.MustExec("SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED")
require.Error(t, tk.ExecToErr(`INSERT INTO t VALUES ("sdfsdf")`))
tk.MustExec("COMMIT")
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustExec("set global avoid_temporal_upgrade = on")
tk.MustQuery(`select @@global.avoid_temporal_upgrade;`).Check(testkit.Rows("1"))
tk.MustExec("set @@global.avoid_temporal_upgrade = off")
tk.MustQuery(`select @@global.avoid_temporal_upgrade;`).Check(testkit.Rows("0"))
tk.MustExec("set session sql_log_bin = on")
tk.MustQuery(`select @@session.sql_log_bin;`).Check(testkit.Rows("1"))
tk.MustExec("set sql_log_bin = off")
tk.MustQuery(`select @@session.sql_log_bin;`).Check(testkit.Rows("0"))
tk.MustExec("set @@sql_log_bin = on")
tk.MustQuery(`select @@session.sql_log_bin;`).Check(testkit.Rows("1"))
binlogValue := "0"
if config.GetGlobalConfig().Binlog.Enable {
binlogValue = "1"
}
tk.MustQuery(`select @@global.log_bin;`).Check(testkit.Rows(binlogValue))
tk.MustQuery(`select @@log_bin;`).Check(testkit.Rows(binlogValue))
tk.MustExec("set @@tidb_general_log = 1")
tk.MustExec("set @@tidb_general_log = 0")
tk.MustExec("set @@tidb_pprof_sql_cpu = 1")
tk.MustExec("set @@tidb_pprof_sql_cpu = 0")
tk.MustExec(`set tidb_force_priority = "no_priority"`)
tk.MustQuery(`select @@tidb_force_priority;`).Check(testkit.Rows("NO_PRIORITY"))
tk.MustExec(`set tidb_force_priority = "low_priority"`)
tk.MustQuery(`select @@tidb_force_priority;`).Check(testkit.Rows("LOW_PRIORITY"))
tk.MustExec(`set tidb_force_priority = "high_priority"`)
tk.MustQuery(`select @@tidb_force_priority;`).Check(testkit.Rows("HIGH_PRIORITY"))
tk.MustExec(`set tidb_force_priority = "delayed"`)
tk.MustQuery(`select @@tidb_force_priority;`).Check(testkit.Rows("DELAYED"))
tk.MustExec(`set tidb_force_priority = "abc"`)
tk.MustQuery(`select @@tidb_force_priority;`).Check(testkit.Rows("NO_PRIORITY"))
require.Error(t, tk.ExecToErr(`set global tidb_force_priority = ""`))
tk.MustExec("set tidb_constraint_check_in_place = 1")
tk.MustQuery(`select @@session.tidb_constraint_check_in_place;`).Check(testkit.Rows("1"))
tk.MustExec("set global tidb_constraint_check_in_place = 0")
tk.MustQuery(`select @@global.tidb_constraint_check_in_place;`).Check(testkit.Rows("0"))
tk.MustExec("set tidb_batch_commit = 0")
tk.MustQuery("select @@session.tidb_batch_commit;").Check(testkit.Rows("0"))
tk.MustExec("set tidb_batch_commit = 1")
tk.MustQuery("select @@session.tidb_batch_commit;").Check(testkit.Rows("1"))
require.Error(t, tk.ExecToErr("set global tidb_batch_commit = 0"))
require.Error(t, tk.ExecToErr("set global tidb_batch_commit = 2"))
// test skip isolation level check: init
tk.MustExec("SET GLOBAL tidb_skip_isolation_level_check = 0")
tk.MustExec("SET SESSION tidb_skip_isolation_level_check = 0")
tk.MustExec("SET GLOBAL TRANSACTION ISOLATION LEVEL READ COMMITTED")
tk.MustExec("SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED")
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// test skip isolation level check: error
err = tk.ExecToErr("SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
err = tk.ExecToErr("SET GLOBAL TRANSACTION ISOLATION LEVEL SERIALIZABLE")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("READ-COMMITTED"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("READ-COMMITTED"))
// test skip isolation level check: success
tk.MustExec("SET GLOBAL tidb_skip_isolation_level_check = 1")
tk.MustExec("SET SESSION tidb_skip_isolation_level_check = 1")
tk.MustExec("SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE")
tk.MustQuery("show warnings").Check(testkit.Rows(
"Warning 8048 The isolation level 'SERIALIZABLE' is not supported. Set tidb_skip_isolation_level_check=1 to skip this error"))
tk.MustQuery("select @@session.tx_isolation").Check(testkit.Rows("SERIALIZABLE"))
tk.MustQuery("select @@session.transaction_isolation").Check(testkit.Rows("SERIALIZABLE"))
// test skip isolation level check: success
tk.MustExec("SET GLOBAL tidb_skip_isolation_level_check = 0")
tk.MustExec("SET SESSION tidb_skip_isolation_level_check = 1")
tk.MustExec("SET GLOBAL TRANSACTION ISOLATION LEVEL READ UNCOMMITTED")
tk.MustQuery("show warnings").Check(testkit.Rows(
"Warning 8048 The isolation level 'READ-UNCOMMITTED' is not supported. Set tidb_skip_isolation_level_check=1 to skip this error"))
tk.MustQuery("select @@global.tx_isolation").Check(testkit.Rows("READ-UNCOMMITTED"))
tk.MustQuery("select @@global.transaction_isolation").Check(testkit.Rows("READ-UNCOMMITTED"))
// test skip isolation level check: reset
tk.MustExec("SET GLOBAL transaction_isolation='REPEATABLE-READ'") // should reset tx_isolation back to rr before reset tidb_skip_isolation_level_check
tk.MustExec("SET GLOBAL tidb_skip_isolation_level_check = 0")
tk.MustExec("SET SESSION tidb_skip_isolation_level_check = 0")
// test for tidb_wait_split_region_finish
tk.MustQuery(`select @@session.tidb_wait_split_region_finish;`).Check(testkit.Rows("1"))
tk.MustExec("set tidb_wait_split_region_finish = 1")
tk.MustQuery(`select @@session.tidb_wait_split_region_finish;`).Check(testkit.Rows("1"))
tk.MustExec("set tidb_wait_split_region_finish = 0")
tk.MustQuery(`select @@session.tidb_wait_split_region_finish;`).Check(testkit.Rows("0"))
// test for tidb_scatter_region
tk.MustQuery(`select @@global.tidb_scatter_region;`).Check(testkit.Rows("0"))
tk.MustExec("set global tidb_scatter_region = 1")
tk.MustQuery(`select @@global.tidb_scatter_region;`).Check(testkit.Rows("1"))
tk.MustExec("set global tidb_scatter_region = 0")
tk.MustQuery(`select @@global.tidb_scatter_region;`).Check(testkit.Rows("0"))
require.Error(t, tk.ExecToErr("set session tidb_scatter_region = 0"))
require.Error(t, tk.ExecToErr(`select @@session.tidb_scatter_region;`))
// test for tidb_wait_split_region_timeout
tk.MustQuery(`select @@session.tidb_wait_split_region_timeout;`).Check(testkit.Rows(strconv.Itoa(variable.DefWaitSplitRegionTimeout)))
tk.MustExec("set tidb_wait_split_region_timeout = 1")
tk.MustQuery(`select @@session.tidb_wait_split_region_timeout;`).Check(testkit.Rows("1"))
tk.MustExec("set tidb_wait_split_region_timeout = 0")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_wait_split_region_timeout value: '0'"))
tk.MustQuery(`select @@tidb_wait_split_region_timeout`).Check(testkit.Rows("1"))
tk.MustQuery(`select @@session.tidb_wait_split_region_timeout;`).Check(testkit.Rows("1"))
tk.MustExec("set session tidb_backoff_weight = 3")
tk.MustQuery("select @@session.tidb_backoff_weight;").Check(testkit.Rows("3"))
tk.MustExec("set session tidb_backoff_weight = 20")
tk.MustQuery("select @@session.tidb_backoff_weight;").Check(testkit.Rows("20"))
tk.MustExec("set session tidb_backoff_weight = -1")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_backoff_weight value: '-1'"))
tk.MustExec("set global tidb_backoff_weight = 0")
tk.MustQuery("select @@global.tidb_backoff_weight;").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_backoff_weight = 10")
tk.MustQuery("select @@global.tidb_backoff_weight;").Check(testkit.Rows("10"))
tk.MustExec("set @@tidb_expensive_query_time_threshold=70")
tk.MustQuery("select @@tidb_expensive_query_time_threshold;").Check(testkit.Rows("70"))
tk.MustQuery("select @@global.tidb_store_limit;").Check(testkit.Rows("0"))
tk.MustExec("set @@global.tidb_store_limit = 100")
tk.MustQuery("select @@global.tidb_store_limit;").Check(testkit.Rows("100"))
tk.MustExec("set @@global.tidb_store_limit = 0")
tk.MustExec("set global tidb_store_limit = 100")
tk.MustQuery("select @@global.tidb_store_limit;").Check(testkit.Rows("100"))
tk.MustQuery("select @@global.tidb_txn_commit_batch_size;").Check(testkit.Rows("16384"))
tk.MustExec("set @@global.tidb_txn_commit_batch_size = 100")
tk.MustQuery("select @@global.tidb_txn_commit_batch_size;").Check(testkit.Rows("100"))
tk.MustExec("set @@global.tidb_txn_commit_batch_size = 0")
tk.MustQuery("select @@global.tidb_txn_commit_batch_size;").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_txn_commit_batch_size = 100")
tk.MustQuery("select @@global.tidb_txn_commit_batch_size;").Check(testkit.Rows("100"))
tk.MustQuery("select @@session.tidb_metric_query_step;").Check(testkit.Rows("60"))
tk.MustExec("set @@session.tidb_metric_query_step = 120")
tk.MustExec("set @@session.tidb_metric_query_step = 9")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_metric_query_step value: '9'"))
tk.MustQuery("select @@session.tidb_metric_query_step;").Check(testkit.Rows("10"))
tk.MustQuery("select @@session.tidb_metric_query_range_duration;").Check(testkit.Rows("60"))
tk.MustExec("set @@session.tidb_metric_query_range_duration = 120")
tk.MustExec("set @@session.tidb_metric_query_range_duration = 9")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_metric_query_range_duration value: '9'"))
tk.MustQuery("select @@session.tidb_metric_query_range_duration;").Check(testkit.Rows("10"))
tk.MustExec("set @@cte_max_recursion_depth=100")
tk.MustQuery("select @@cte_max_recursion_depth").Check(testkit.Rows("100"))
tk.MustExec("set @@global.cte_max_recursion_depth=100")
tk.MustQuery("select @@global.cte_max_recursion_depth").Check(testkit.Rows("100"))
tk.MustExec("set @@cte_max_recursion_depth=-1")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect cte_max_recursion_depth value: '-1'"))
tk.MustQuery("select @@cte_max_recursion_depth").Check(testkit.Rows("0"))
// test for tidb_redact_log
tk.MustQuery(`select @@global.tidb_redact_log;`).Check(testkit.Rows("0"))
tk.MustExec("set global tidb_redact_log = 1")
tk.MustQuery(`select @@global.tidb_redact_log;`).Check(testkit.Rows("1"))
tk.MustExec("set global tidb_redact_log = 0")
tk.MustQuery(`select @@global.tidb_redact_log;`).Check(testkit.Rows("0"))
tk.MustExec("set session tidb_redact_log = 0")
tk.MustQuery(`select @@session.tidb_redact_log;`).Check(testkit.Rows("0"))
tk.MustExec("set session tidb_redact_log = 1")
tk.MustQuery(`select @@session.tidb_redact_log;`).Check(testkit.Rows("1"))
tk.MustQuery("select @@tidb_dml_batch_size;").Check(testkit.Rows("0"))
tk.MustExec("set @@session.tidb_dml_batch_size = 120")
tk.MustQuery("select @@tidb_dml_batch_size;").Check(testkit.Rows("120"))
tk.MustExec("set @@session.tidb_dml_batch_size = -120")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_dml_batch_size value: '?'")) // redacted because of tidb_redact_log = 1 above
tk.MustQuery("select @@session.tidb_dml_batch_size").Check(testkit.Rows("0"))
tk.MustExec("set session tidb_redact_log = 0")
tk.MustExec("set session tidb_dml_batch_size = -120")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_dml_batch_size value: '-120'")) // without redaction
tk.MustExec("set @@session.tidb_dml_batch_size = 120")
tk.MustExec("set @@global.tidb_dml_batch_size = 200") // now permitted due to TiDB #19809
tk.MustQuery("select @@tidb_dml_batch_size;").Check(testkit.Rows("120")) // global only applies to new sessions
err = tk.ExecToErr("set tidb_enable_parallel_apply=-1")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar))
// test for tidb_mem_quota_apply_cache
defVal := fmt.Sprintf("%v", variable.DefTiDBMemQuotaApplyCache)
tk.MustQuery(`select @@tidb_mem_quota_apply_cache`).Check(testkit.Rows(defVal))
tk.MustExec(`set global tidb_mem_quota_apply_cache = 1`)
tk.MustQuery(`select @@global.tidb_mem_quota_apply_cache`).Check(testkit.Rows("1"))
tk.MustExec(`set global tidb_mem_quota_apply_cache = 0`)
tk.MustQuery(`select @@global.tidb_mem_quota_apply_cache`).Check(testkit.Rows("0"))
tk.MustExec(`set tidb_mem_quota_apply_cache = 123`)
tk.MustQuery(`select @@global.tidb_mem_quota_apply_cache`).Check(testkit.Rows("0"))
tk.MustQuery(`select @@tidb_mem_quota_apply_cache`).Check(testkit.Rows("123"))
// test for tidb_mem_quota_bind_cache
defVal = fmt.Sprintf("%v", variable.DefTiDBMemQuotaBindingCache)
tk.MustQuery(`select @@tidb_mem_quota_binding_cache`).Check(testkit.Rows(defVal))
tk.MustExec(`set global tidb_mem_quota_binding_cache = 1`)
tk.MustQuery(`select @@global.tidb_mem_quota_binding_cache`).Check(testkit.Rows("1"))
tk.MustExec(`set global tidb_mem_quota_binding_cache = 0`)
tk.MustQuery(`select @@global.tidb_mem_quota_binding_cache`).Check(testkit.Rows("0"))
tk.MustExec(`set global tidb_mem_quota_binding_cache = 123`)
tk.MustQuery(`select @@global.tidb_mem_quota_binding_cache`).Check(testkit.Rows("123"))
tk.MustQuery(`select @@global.tidb_mem_quota_binding_cache`).Check(testkit.Rows("123"))
// test for tidb_enable_parallel_apply
tk.MustQuery(`select @@tidb_enable_parallel_apply`).Check(testkit.Rows("0"))
tk.MustExec(`set global tidb_enable_parallel_apply = 1`)
tk.MustQuery(`select @@global.tidb_enable_parallel_apply`).Check(testkit.Rows("1"))
tk.MustExec(`set global tidb_enable_parallel_apply = 0`)
tk.MustQuery(`select @@global.tidb_enable_parallel_apply`).Check(testkit.Rows("0"))
tk.MustExec(`set tidb_enable_parallel_apply=1`)
tk.MustQuery(`select @@global.tidb_enable_parallel_apply`).Check(testkit.Rows("0"))
tk.MustQuery(`select @@tidb_enable_parallel_apply`).Check(testkit.Rows("1"))
tk.MustQuery(`select @@global.tidb_general_log;`).Check(testkit.Rows("0"))
tk.MustQuery(`show variables like 'tidb_general_log';`).Check(testkit.Rows("tidb_general_log OFF"))
tk.MustExec("set tidb_general_log = 1")
tk.MustQuery(`select @@global.tidb_general_log;`).Check(testkit.Rows("1"))
tk.MustQuery(`show variables like 'tidb_general_log';`).Check(testkit.Rows("tidb_general_log ON"))
tk.MustExec("set tidb_general_log = 0")
tk.MustQuery(`select @@global.tidb_general_log;`).Check(testkit.Rows("0"))
tk.MustQuery(`show variables like 'tidb_general_log';`).Check(testkit.Rows("tidb_general_log OFF"))
tk.MustExec("set tidb_general_log = on")
tk.MustQuery(`select @@global.tidb_general_log;`).Check(testkit.Rows("1"))
tk.MustQuery(`show variables like 'tidb_general_log';`).Check(testkit.Rows("tidb_general_log ON"))
tk.MustExec("set tidb_general_log = off")
tk.MustQuery(`select @@global.tidb_general_log;`).Check(testkit.Rows("0"))
tk.MustQuery(`show variables like 'tidb_general_log';`).Check(testkit.Rows("tidb_general_log OFF"))
require.Error(t, tk.ExecToErr("set tidb_general_log = abc"))
require.Error(t, tk.ExecToErr("set tidb_general_log = 123"))
tk.MustExec(`SET @@character_set_results = NULL;`)
tk.MustQuery(`select @@character_set_results;`).Check(testkit.Rows(""))
varList := []string{"character_set_server", "character_set_client", "character_set_filesystem", "character_set_database"}
for _, v := range varList {
tk.MustGetErrCode(fmt.Sprintf("SET @@global.%s = @global_start_value;", v), mysql.ErrWrongValueForVar)
tk.MustGetErrCode(fmt.Sprintf("SET @@%s = @global_start_value;", v), mysql.ErrWrongValueForVar)
tk.MustGetErrCode(fmt.Sprintf("SET @@%s = NULL;", v), mysql.ErrWrongValueForVar)
tk.MustGetErrCode(fmt.Sprintf("SET @@%s = \"\";", v), mysql.ErrWrongValueForVar)
tk.MustGetErrMsg(fmt.Sprintf("SET @@%s = \"somecharset\";", v), "Unknown charset somecharset")
// we do not support set character_set_xxx or collation_xxx to a collation id.
tk.MustGetErrMsg(fmt.Sprintf("SET @@global.%s = 46;", v), "Unknown charset 46")
tk.MustGetErrMsg(fmt.Sprintf("SET @@%s = 46;", v), "Unknown charset 46")
}
tk.MustExec("SET SESSION tidb_enable_extended_stats = on")
tk.MustQuery("select @@session.tidb_enable_extended_stats").Check(testkit.Rows("1"))
tk.MustExec("SET SESSION tidb_enable_extended_stats = off")
tk.MustQuery("select @@session.tidb_enable_extended_stats").Check(testkit.Rows("0"))
tk.MustExec("SET GLOBAL tidb_enable_extended_stats = on")
tk.MustQuery("select @@global.tidb_enable_extended_stats").Check(testkit.Rows("1"))
tk.MustExec("SET GLOBAL tidb_enable_extended_stats = off")
tk.MustQuery("select @@global.tidb_enable_extended_stats").Check(testkit.Rows("0"))
tk.MustExec("SET SESSION tidb_allow_fallback_to_tikv = 'tiflash'")
tk.MustQuery("select @@session.tidb_allow_fallback_to_tikv").Check(testkit.Rows("tiflash"))
tk.MustExec("SET SESSION tidb_allow_fallback_to_tikv = ''")
tk.MustQuery("select @@session.tidb_allow_fallback_to_tikv").Check(testkit.Rows(""))
tk.MustExec("SET GLOBAL tidb_allow_fallback_to_tikv = 'tiflash'")
tk.MustQuery("select @@global.tidb_allow_fallback_to_tikv").Check(testkit.Rows("tiflash"))
tk.MustExec("SET GLOBAL tidb_allow_fallback_to_tikv = ''")
tk.MustQuery("select @@global.tidb_allow_fallback_to_tikv").Check(testkit.Rows(""))
tk.MustExec("set @@tidb_allow_fallback_to_tikv = 'tiflash, tiflash, tiflash'")
tk.MustQuery("select @@tidb_allow_fallback_to_tikv").Check(testkit.Rows("tiflash"))
tk.MustGetErrMsg("SET SESSION tidb_allow_fallback_to_tikv = 'tikv,tiflash'", "[variable:1231]Variable 'tidb_allow_fallback_to_tikv' can't be set to the value of 'tikv,tiflash'")
tk.MustGetErrMsg("SET GLOBAL tidb_allow_fallback_to_tikv = 'tikv,tiflash'", "[variable:1231]Variable 'tidb_allow_fallback_to_tikv' can't be set to the value of 'tikv,tiflash'")
tk.MustGetErrMsg("set @@tidb_allow_fallback_to_tikv = 'tidb, tiflash, tiflash'", "[variable:1231]Variable 'tidb_allow_fallback_to_tikv' can't be set to the value of 'tidb, tiflash, tiflash'")
tk.MustGetErrMsg("set @@tidb_allow_fallback_to_tikv = 'unknown, tiflash, tiflash'", "[variable:1231]Variable 'tidb_allow_fallback_to_tikv' can't be set to the value of 'unknown, tiflash, tiflash'")
// Test issue #22145
tk.MustExec(`set global sync_relay_log = "'"`)
tk.MustExec(`set @@global.tidb_enable_clustered_index = 'int_only'`)
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1287 'INT_ONLY' is deprecated and will be removed in a future release. Please use 'ON' or 'OFF' instead"))
tk.MustExec(`set @@global.tidb_enable_clustered_index = 'off'`)
tk.MustQuery(`show warnings`).Check(testkit.Rows())
tk.MustExec("set @@tidb_enable_clustered_index = 'off'")
tk.MustQuery(`show warnings`).Check(testkit.Rows())
tk.MustExec("set @@tidb_enable_clustered_index = 'on'")
tk.MustQuery(`show warnings`).Check(testkit.Rows())
tk.MustExec("set @@tidb_enable_clustered_index = 'int_only'")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1287 'INT_ONLY' is deprecated and will be removed in a future release. Please use 'ON' or 'OFF' instead"))
// test for tidb_enable_ordered_result_mode
tk.MustQuery(`select @@tidb_enable_ordered_result_mode`).Check(testkit.Rows("0"))
tk.MustExec(`set global tidb_enable_ordered_result_mode = 1`)
tk.MustQuery(`select @@global.tidb_enable_ordered_result_mode`).Check(testkit.Rows("1"))
tk.MustExec(`set global tidb_enable_ordered_result_mode = 0`)
tk.MustQuery(`select @@global.tidb_enable_ordered_result_mode`).Check(testkit.Rows("0"))
tk.MustExec(`set tidb_enable_ordered_result_mode=1`)
tk.MustQuery(`select @@global.tidb_enable_ordered_result_mode`).Check(testkit.Rows("0"))
tk.MustQuery(`select @@tidb_enable_ordered_result_mode`).Check(testkit.Rows("1"))
// test for tidb_opt_enable_correlation_adjustment
tk.MustQuery(`select @@tidb_opt_enable_correlation_adjustment`).Check(testkit.Rows("1"))
tk.MustExec(`set global tidb_opt_enable_correlation_adjustment = 0`)
tk.MustQuery(`select @@global.tidb_opt_enable_correlation_adjustment`).Check(testkit.Rows("0"))
tk.MustExec(`set global tidb_opt_enable_correlation_adjustment = 1`)
tk.MustQuery(`select @@global.tidb_opt_enable_correlation_adjustment`).Check(testkit.Rows("1"))
tk.MustExec(`set tidb_opt_enable_correlation_adjustment=0`)
tk.MustQuery(`select @@global.tidb_opt_enable_correlation_adjustment`).Check(testkit.Rows("1"))
tk.MustQuery(`select @@tidb_opt_enable_correlation_adjustment`).Check(testkit.Rows("0"))
// test for tidb_opt_limit_push_down_threshold
tk.MustQuery(`select @@tidb_opt_limit_push_down_threshold`).Check(testkit.Rows("100"))
tk.MustExec(`set global tidb_opt_limit_push_down_threshold = 20`)
tk.MustQuery(`select @@global.tidb_opt_limit_push_down_threshold`).Check(testkit.Rows("20"))
tk.MustExec(`set global tidb_opt_limit_push_down_threshold = 100`)
tk.MustQuery(`select @@global.tidb_opt_limit_push_down_threshold`).Check(testkit.Rows("100"))
tk.MustExec(`set tidb_opt_limit_push_down_threshold = 20`)
tk.MustQuery(`select @@global.tidb_opt_limit_push_down_threshold`).Check(testkit.Rows("100"))
tk.MustQuery(`select @@tidb_opt_limit_push_down_threshold`).Check(testkit.Rows("20"))
tk.MustQuery("select @@tidb_opt_prefer_range_scan").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_opt_prefer_range_scan = 1")
tk.MustQuery("select @@global.tidb_opt_prefer_range_scan").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_opt_prefer_range_scan = 0")
tk.MustQuery("select @@global.tidb_opt_prefer_range_scan").Check(testkit.Rows("0"))
tk.MustExec("set session tidb_opt_prefer_range_scan = 1")
tk.MustQuery("select @@session.tidb_opt_prefer_range_scan").Check(testkit.Rows("1"))
tk.MustExec("set session tidb_opt_prefer_range_scan = 0")
tk.MustQuery("select @@session.tidb_opt_prefer_range_scan").Check(testkit.Rows("0"))
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 0.5")
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("0.5"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 1")
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 1.5")
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("1.5"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 10")
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("10"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = -1")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_tso_client_batch_max_wait_time value: '-1'"))
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = -0.01")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_tso_client_batch_max_wait_time value: '-0.01'"))
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 10.01")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_tso_client_batch_max_wait_time value: '10.01'"))
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("10"))
tk.MustExec("set global tidb_tso_client_batch_max_wait_time = 10.1")
tk.MustQuery("show warnings").Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_tso_client_batch_max_wait_time value: '10.1'"))
tk.MustQuery("select @@tidb_tso_client_batch_max_wait_time").Check(testkit.Rows("10"))
require.Error(t, tk.ExecToErr("set tidb_tso_client_batch_max_wait_time = 1"))
tk.MustQuery("select @@tidb_enable_tso_follower_proxy").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_enable_tso_follower_proxy = 1")
tk.MustQuery("select @@tidb_enable_tso_follower_proxy").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_enable_tso_follower_proxy = 0")
tk.MustQuery("select @@tidb_enable_tso_follower_proxy").Check(testkit.Rows("0"))
require.Error(t, tk.ExecToErr("set tidb_enable_tso_follower_proxy = 1"))
tk.MustQuery("select @@tidb_enable_historical_stats").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_enable_historical_stats = 1")
tk.MustQuery("select @@tidb_enable_historical_stats").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_enable_historical_stats = 0")
tk.MustQuery("select @@tidb_enable_historical_stats").Check(testkit.Rows("0"))
// test for tidb_enable_column_tracking
tk.MustQuery("select @@tidb_enable_column_tracking").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_enable_column_tracking = 1")
tk.MustQuery("select @@tidb_enable_column_tracking").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_enable_column_tracking = 0")
tk.MustQuery("select @@tidb_enable_column_tracking").Check(testkit.Rows("0"))
// When set tidb_enable_column_tracking off, we record the time of the setting operation.
tk.MustQuery("select count(1) from mysql.tidb where variable_name = 'tidb_disable_column_tracking_time' and variable_value is not null").Check(testkit.Rows("1"))
tk.MustExec("set global tidb_enable_column_tracking = 1")
tk.MustQuery("select @@tidb_enable_column_tracking").Check(testkit.Rows("1"))
require.Error(t, tk.ExecToErr("select @@session.tidb_enable_column_tracking"))
require.Error(t, tk.ExecToErr("set tidb_enable_column_tracking = 0"))
require.Error(t, tk.ExecToErr("set global tidb_enable_column_tracking = -1"))
// test for tidb_ignore_prepared_cache_close_stmt
tk.MustQuery("select @@global.tidb_ignore_prepared_cache_close_stmt").Check(testkit.Rows("0")) // default value is 0
tk.MustExec("set global tidb_ignore_prepared_cache_close_stmt=1")
tk.MustQuery("select @@global.tidb_ignore_prepared_cache_close_stmt").Check(testkit.Rows("1"))
tk.MustQuery("show global variables like 'tidb_ignore_prepared_cache_close_stmt'").Check(testkit.Rows("tidb_ignore_prepared_cache_close_stmt ON"))
tk.MustExec("set global tidb_ignore_prepared_cache_close_stmt=0")
tk.MustQuery("select @@global.tidb_ignore_prepared_cache_close_stmt").Check(testkit.Rows("0"))
tk.MustQuery("show global variables like 'tidb_ignore_prepared_cache_close_stmt'").Check(testkit.Rows("tidb_ignore_prepared_cache_close_stmt OFF"))
// test for tidb_enable_new_cost_interface
tk.MustQuery("select @@global.tidb_enable_new_cost_interface").Check(testkit.Rows("0")) // default value is 0
tk.MustExec("set global tidb_enable_new_cost_interface=1")
tk.MustQuery("select @@global.tidb_enable_new_cost_interface").Check(testkit.Rows("1"))
tk.MustQuery("show global variables like 'tidb_enable_new_cost_interface'").Check(testkit.Rows()) // hidden
tk.MustExec("set global tidb_enable_new_cost_interface=0")
tk.MustQuery("select @@global.tidb_enable_new_cost_interface").Check(testkit.Rows("0"))
// test for tidb_remove_orderby_in_subquery
tk.MustQuery("select @@session.tidb_remove_orderby_in_subquery").Check(testkit.Rows("0")) // default value is 0
tk.MustExec("set session tidb_remove_orderby_in_subquery=1")
tk.MustQuery("select @@session.tidb_remove_orderby_in_subquery").Check(testkit.Rows("1"))
tk.MustQuery("select @@global.tidb_remove_orderby_in_subquery").Check(testkit.Rows("0")) // default value is 0
tk.MustExec("set global tidb_remove_orderby_in_subquery=1")
tk.MustQuery("select @@global.tidb_remove_orderby_in_subquery").Check(testkit.Rows("1"))
// the value of max_allowed_packet should be a multiple of 1024
tk.MustExec("set @@global.max_allowed_packet=16385")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_allowed_packet value: '16385'"))
result := tk.MustQuery("select @@global.max_allowed_packet;")
result.Check(testkit.Rows("16384"))
tk.MustExec("set @@global.max_allowed_packet=2047")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_allowed_packet value: '2047'"))
result = tk.MustQuery("select @@global.max_allowed_packet;")
result.Check(testkit.Rows("1024"))
tk.MustExec("set @@global.max_allowed_packet=0")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_allowed_packet value: '0'"))
result = tk.MustQuery("select @@global.max_allowed_packet;")
result.Check(testkit.Rows("1024"))
}
func TestTruncateIncorrectIntSessionVar(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
testCases := []struct {
sessionVarName string
minValue int
maxValue int
}{
{"auto_increment_increment", 1, 65535},
{"auto_increment_offset", 1, 65535},
}
for _, tc := range testCases {
name := tc.sessionVarName
selectSQL := fmt.Sprintf("select @@%s;", name)
validValue := tc.minValue + (tc.maxValue-tc.minValue)/2
tk.MustExec(fmt.Sprintf("set @@%s = %d", name, validValue))
tk.MustQuery(selectSQL).Check(testkit.Rows(fmt.Sprintf("%d", validValue)))
tk.MustExec(fmt.Sprintf("set @@%s = %d", name, tc.minValue-1))
warnMsg := fmt.Sprintf("Warning 1292 Truncated incorrect %s value: '%d'", name, tc.minValue-1)
tk.MustQuery("show warnings").Check(testkit.Rows(warnMsg))
tk.MustQuery(selectSQL).Check(testkit.Rows(fmt.Sprintf("%d", tc.minValue)))
tk.MustExec(fmt.Sprintf("set @@%s = %d", name, tc.maxValue+1))
warnMsg = fmt.Sprintf("Warning 1292 Truncated incorrect %s value: '%d'", name, tc.maxValue+1)
tk.MustQuery("show warnings").Check(testkit.Rows(warnMsg))
tk.MustQuery(selectSQL).Check(testkit.Rows(fmt.Sprintf("%d", tc.maxValue)))
}
}
func TestSetCharset(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
sessionVars := tk.Session().GetSessionVars()
var characterSetVariables = []string{
"character_set_client",
"character_set_connection",
"character_set_results",
"character_set_server",
"character_set_database",
"character_set_system",
"character_set_filesystem",
}
check := func(args ...string) {
for i, v := range characterSetVariables {
sVar, err := variable.GetSessionOrGlobalSystemVar(sessionVars, v)
require.NoError(t, err)
require.Equal(t, args[i], sVar, fmt.Sprintf("%d: %s", i, characterSetVariables[i]))
}
}
check(
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
tk.MustExec(`SET NAMES latin1`)
check(
"latin1",
"latin1",
"latin1",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
tk.MustExec(`SET NAMES default`)
check(
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
// Issue #1523
tk.MustExec(`SET NAMES binary`)
check(
"binary",
"binary",
"binary",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
tk.MustExec(`SET NAMES utf8`)
check(
"utf8",
"utf8",
"utf8",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
tk.MustExec(`SET CHARACTER SET latin1`)
check(
"latin1",
"utf8mb4",
"latin1",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
tk.MustExec(`SET CHARACTER SET default`)
check(
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8mb4",
"utf8",
"binary",
)
}
func TestSetCollationAndCharset(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
ctx := tk.Session().(sessionctx.Context)
sessionVars := ctx.GetSessionVars()
cases := []struct {
charset string
collation string
expectCharset string
expectCollation string
}{
{variable.CharacterSetConnection, variable.CollationConnection, "utf8", "utf8_bin"},
{variable.CharsetDatabase, variable.CollationDatabase, "utf8", "utf8_bin"},
{variable.CharacterSetServer, variable.CollationServer, "utf8", "utf8_bin"},
}
for _, c := range cases {
tk.MustExec(fmt.Sprintf("set %s = %s;", c.charset, c.expectCharset))
sVar, ok := sessionVars.GetSystemVar(c.charset)
require.True(t, ok)
require.Equal(t, c.expectCharset, sVar)
sVar, ok = sessionVars.GetSystemVar(c.collation)
require.True(t, ok)
require.Equal(t, c.expectCollation, sVar)
}
tk = testkit.NewTestKit(t, store)
tk.MustExec("use test")
ctx = tk.Session().(sessionctx.Context)
sessionVars = ctx.GetSessionVars()
for _, c := range cases {
tk.MustExec(fmt.Sprintf("set %s = %s;", c.collation, c.expectCollation))
sVar, ok := sessionVars.GetSystemVar(c.charset)
require.True(t, ok)
require.Equal(t, c.expectCharset, sVar)
sVar, ok = sessionVars.GetSystemVar(c.collation)
require.True(t, ok)
require.Equal(t, c.expectCollation, sVar)
}
}
func TestValidateSetVar(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
err := tk.ExecToErr("set global tidb_distsql_scan_concurrency='fff';")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set global tidb_distsql_scan_concurrency=-2;")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_distsql_scan_concurrency value: '-2'"))
err = tk.ExecToErr("set @@tidb_distsql_scan_concurrency='fff';")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@tidb_distsql_scan_concurrency=-2;")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_distsql_scan_concurrency value: '-2'"))
err = tk.ExecToErr("set @@tidb_batch_delete='ok';")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@tidb_batch_delete='On';")
tk.MustQuery("select @@tidb_batch_delete;").Check(testkit.Rows("1"))
tk.MustExec("set @@tidb_batch_delete='oFf';")
tk.MustQuery("select @@tidb_batch_delete;").Check(testkit.Rows("0"))
tk.MustExec("set @@tidb_batch_delete=1;")
tk.MustQuery("select @@tidb_batch_delete;").Check(testkit.Rows("1"))
tk.MustExec("set @@tidb_batch_delete=0;")
tk.MustQuery("select @@tidb_batch_delete;").Check(testkit.Rows("0"))
tk.MustExec("set @@tidb_opt_agg_push_down=off;")
tk.MustQuery("select @@tidb_opt_agg_push_down;").Check(testkit.Rows("0"))
tk.MustExec("set @@tidb_constraint_check_in_place=on;")
tk.MustQuery("select @@tidb_constraint_check_in_place;").Check(testkit.Rows("1"))
tk.MustExec("set @@tidb_general_log=0;")
tk.MustQuery(`show warnings`).Check(testkit.Rows(fmt.Sprintf("Warning %d modifying tidb_general_log will require SET GLOBAL in a future version of TiDB", errno.ErrInstanceScope)))
tk.MustQuery("select @@tidb_general_log;").Check(testkit.Rows("0"))
tk.MustExec("set @@tidb_pprof_sql_cpu=1;")
tk.MustQuery("select @@tidb_pprof_sql_cpu;").Check(testkit.Rows("1"))
tk.MustExec("set @@tidb_pprof_sql_cpu=0;")
tk.MustQuery("select @@tidb_pprof_sql_cpu;").Check(testkit.Rows("0"))
err = tk.ExecToErr("set @@tidb_batch_delete=3;")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@group_concat_max_len=1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect group_concat_max_len value: '1'"))
result := tk.MustQuery("select @@group_concat_max_len;")
result.Check(testkit.Rows("4"))
err = tk.ExecToErr("set @@group_concat_max_len = 18446744073709551616")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar), fmt.Sprintf("err %v", err))
// Test illegal type
err = tk.ExecToErr("set @@group_concat_max_len='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@default_week_format=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect default_week_format value: '-1'"))
result = tk.MustQuery("select @@default_week_format;")
result.Check(testkit.Rows("0"))
tk.MustExec("set @@default_week_format=9")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect default_week_format value: '9'"))
result = tk.MustQuery("select @@default_week_format;")
result.Check(testkit.Rows("7"))
err = tk.ExecToErr("set @@error_count = 0")
require.True(t, terror.ErrorEqual(err, variable.ErrIncorrectScope), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("set @@warning_count = 0")
require.True(t, terror.ErrorEqual(err, variable.ErrIncorrectScope), fmt.Sprintf("err %v", err))
tk.MustExec("set time_zone='SySTeM'")
result = tk.MustQuery("select @@time_zone;")
result.Check(testkit.Rows("SYSTEM"))
// The following cases test value out of range and illegal type when setting system variables.
// See https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html for more details.
tk.MustExec("set @@global.max_connections=100001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_connections value: '100001'"))
result = tk.MustQuery("select @@global.max_connections;")
result.Check(testkit.Rows("100000"))
tk.MustExec("set @@global.max_connections=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_connections value: '-1'"))
result = tk.MustQuery("select @@global.max_connections;")
result.Check(testkit.Rows("1"))
err = tk.ExecToErr("set @@global.max_connections='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@global.thread_pool_size=65")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect thread_pool_size value: '65'"))
result = tk.MustQuery("select @@global.thread_pool_size;")
result.Check(testkit.Rows("64"))
tk.MustExec("set @@global.thread_pool_size=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect thread_pool_size value: '-1'"))
result = tk.MustQuery("select @@global.thread_pool_size;")
result.Check(testkit.Rows("1"))
err = tk.ExecToErr("set @@global.thread_pool_size='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@global.max_allowed_packet=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_allowed_packet value: '-1'"))
result = tk.MustQuery("select @@global.max_allowed_packet;")
result.Check(testkit.Rows("1024"))
err = tk.ExecToErr("set @@global.max_allowed_packet='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
err = tk.ExecToErr("set @@max_allowed_packet=default")
require.True(t, terror.ErrorEqual(err, variable.ErrReadOnly))
tk.MustExec("set @@global.max_connect_errors=18446744073709551615")
tk.MustExec("set @@global.max_connect_errors=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_connect_errors value: '-1'"))
result = tk.MustQuery("select @@global.max_connect_errors;")
result.Check(testkit.Rows("1"))
err = tk.ExecToErr("set @@global.max_connect_errors=18446744073709551616")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@global.max_connections=100001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_connections value: '100001'"))
result = tk.MustQuery("select @@global.max_connections;")
result.Check(testkit.Rows("100000"))
tk.MustExec("set @@global.max_connections=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_connections value: '-1'"))
result = tk.MustQuery("select @@global.max_connections;")
result.Check(testkit.Rows("1"))
err = tk.ExecToErr("set @@global.max_connections='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@max_sort_length=1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_sort_length value: '1'"))
result = tk.MustQuery("select @@max_sort_length;")
result.Check(testkit.Rows("4"))
tk.MustExec("set @@max_sort_length=-100")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_sort_length value: '-100'"))
result = tk.MustQuery("select @@max_sort_length;")
result.Check(testkit.Rows("4"))
tk.MustExec("set @@max_sort_length=8388609")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect max_sort_length value: '8388609'"))
result = tk.MustQuery("select @@max_sort_length;")
result.Check(testkit.Rows("8388608"))
err = tk.ExecToErr("set @@max_sort_length='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@global.table_definition_cache=399")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect table_definition_cache value: '399'"))
result = tk.MustQuery("select @@global.table_definition_cache;")
result.Check(testkit.Rows("400"))
tk.MustExec("set @@global.table_definition_cache=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect table_definition_cache value: '-1'"))
result = tk.MustQuery("select @@global.table_definition_cache;")
result.Check(testkit.Rows("400"))
tk.MustExec("set @@global.table_definition_cache=524289")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect table_definition_cache value: '524289'"))
result = tk.MustQuery("select @@global.table_definition_cache;")
result.Check(testkit.Rows("524288"))
err = tk.ExecToErr("set @@global.table_definition_cache='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@old_passwords=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect old_passwords value: '-1'"))
result = tk.MustQuery("select @@old_passwords;")
result.Check(testkit.Rows("0"))
tk.MustExec("set @@old_passwords=3")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect old_passwords value: '3'"))
result = tk.MustQuery("select @@old_passwords;")
result.Check(testkit.Rows("2"))
err = tk.ExecToErr("set @@old_passwords='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@tmp_table_size=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect tmp_table_size value: '-1'"))
result = tk.MustQuery("select @@tmp_table_size;")
result.Check(testkit.Rows("1024"))
tk.MustExec("set @@tmp_table_size=1020")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect tmp_table_size value: '1020'"))
result = tk.MustQuery("select @@tmp_table_size;")
result.Check(testkit.Rows("1024"))
tk.MustExec("set @@tmp_table_size=167772161")
result = tk.MustQuery("select @@tmp_table_size;")
result.Check(testkit.Rows("167772161"))
tk.MustExec("set @@tmp_table_size=18446744073709551615")
result = tk.MustQuery("select @@tmp_table_size;")
result.Check(testkit.Rows("18446744073709551615"))
err = tk.ExecToErr("set @@tmp_table_size=18446744073709551616")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
err = tk.ExecToErr("set @@tmp_table_size='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@tidb_tmp_table_max_size=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect tidb_tmp_table_max_size value: '-1'"))
result = tk.MustQuery("select @@tidb_tmp_table_max_size;")
result.Check(testkit.Rows("1048576"))
tk.MustExec("set @@tidb_tmp_table_max_size=1048575")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect tidb_tmp_table_max_size value: '1048575'"))
result = tk.MustQuery("select @@tidb_tmp_table_max_size;")
result.Check(testkit.Rows("1048576"))
tk.MustExec("set @@tidb_tmp_table_max_size=167772161")
result = tk.MustQuery("select @@tidb_tmp_table_max_size;")
result.Check(testkit.Rows("167772161"))
tk.MustExec("set @@tidb_tmp_table_max_size=137438953472")
result = tk.MustQuery("select @@tidb_tmp_table_max_size;")
result.Check(testkit.Rows("137438953472"))
tk.MustExec("set @@tidb_tmp_table_max_size=137438953473")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect tidb_tmp_table_max_size value: '137438953473'"))
result = tk.MustQuery("select @@tidb_tmp_table_max_size;")
result.Check(testkit.Rows("137438953472"))
err = tk.ExecToErr("set @@tidb_tmp_table_max_size='hello'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongTypeForVar))
tk.MustExec("set @@global.connect_timeout=1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect connect_timeout value: '1'"))
result = tk.MustQuery("select @@global.connect_timeout;")
result.Check(testkit.Rows("2"))
tk.MustExec("set @@global.connect_timeout=31536000")
result = tk.MustQuery("select @@global.connect_timeout;")
result.Check(testkit.Rows("31536000"))
tk.MustExec("set @@global.connect_timeout=31536001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect connect_timeout value: '31536001'"))
result = tk.MustQuery("select @@global.connect_timeout;")
result.Check(testkit.Rows("31536000"))
result = tk.MustQuery("select @@sql_select_limit;")
result.Check(testkit.Rows("18446744073709551615"))
tk.MustExec("set @@sql_select_limit=default")
result = tk.MustQuery("select @@sql_select_limit;")
result.Check(testkit.Rows("18446744073709551615"))
tk.MustExec("set @@sql_auto_is_null=00")
result = tk.MustQuery("select @@sql_auto_is_null;")
result.Check(testkit.Rows("0"))
tk.MustExec("set @@sql_warnings=001")
result = tk.MustQuery("select @@sql_warnings;")
result.Check(testkit.Rows("1"))
tk.MustExec("set @@sql_warnings=000")
result = tk.MustQuery("select @@sql_warnings;")
result.Check(testkit.Rows("0"))
tk.MustExec("set @@global.super_read_only=-0")
result = tk.MustQuery("select @@global.super_read_only;")
result.Check(testkit.Rows("0"))
err = tk.ExecToErr("set @@global.super_read_only=-1")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@global.innodb_status_output_locks=-1")
result = tk.MustQuery("select @@global.innodb_status_output_locks;")
result.Check(testkit.Rows("1"))
tk.MustExec("set @@global.innodb_ft_enable_stopword=0000000")
result = tk.MustQuery("select @@global.innodb_ft_enable_stopword;")
result.Check(testkit.Rows("0"))
tk.MustExec("set @@global.innodb_stats_on_metadata=1")
result = tk.MustQuery("select @@global.innodb_stats_on_metadata;")
result.Check(testkit.Rows("1"))
tk.MustExec("set @@global.innodb_file_per_table=-50")
result = tk.MustQuery("select @@global.innodb_file_per_table;")
result.Check(testkit.Rows("1"))
err = tk.ExecToErr("set @@global.innodb_ft_enable_stopword=2")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@query_cache_type=0")
result = tk.MustQuery("select @@query_cache_type;")
result.Check(testkit.Rows("OFF"))
tk.MustExec("set @@query_cache_type=2")
result = tk.MustQuery("select @@query_cache_type;")
result.Check(testkit.Rows("DEMAND"))
tk.MustExec("set @@global.sync_binlog=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect sync_binlog value: '-1'"))
tk.MustExec("set @@global.sync_binlog=4294967299")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect sync_binlog value: '4294967299'"))
tk.MustExec("set @@global.flush_time=31536001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect flush_time value: '31536001'"))
tk.MustExec("set @@global.interactive_timeout=31536001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect interactive_timeout value: '31536001'"))
tk.MustExec("set @@global.innodb_commit_concurrency = -1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_commit_concurrency value: '-1'"))
tk.MustExec("set @@global.innodb_commit_concurrency = 1001")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_commit_concurrency value: '1001'"))
tk.MustExec("set @@global.innodb_fast_shutdown = -1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_fast_shutdown value: '-1'"))
tk.MustExec("set @@global.innodb_fast_shutdown = 3")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_fast_shutdown value: '3'"))
tk.MustExec("set @@global.innodb_lock_wait_timeout = 0")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_lock_wait_timeout value: '0'"))
tk.MustExec("set @@global.innodb_lock_wait_timeout = 1073741825")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_lock_wait_timeout value: '1073741825'"))
tk.MustExec("set @@innodb_lock_wait_timeout = 0")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_lock_wait_timeout value: '0'"))
tk.MustExec("set @@innodb_lock_wait_timeout = 1073741825")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect innodb_lock_wait_timeout value: '1073741825'"))
tk.MustExec("set @@global.validate_password_number_count=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect validate_password_number_count value: '-1'"))
tk.MustExec("set @@global.validate_password_length=-1")
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", "Warning|1292|Truncated incorrect validate_password_length value: '-1'"))
tk.MustExec("set @@global.validate_password_length=8")
tk.MustQuery("show warnings").Check(testkit.Rows())
err = tk.ExecToErr("set @@tx_isolation=''")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("set global tx_isolation=''")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("set @@transaction_isolation=''")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("set global transaction_isolation=''")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("set global tx_isolation='REPEATABLE-READ1'")
require.True(t, terror.ErrorEqual(err, variable.ErrWrongValueForVar), fmt.Sprintf("err %v", err))
tk.MustExec("set @@tx_isolation='READ-COMMITTED'")
result = tk.MustQuery("select @@tx_isolation;")
result.Check(testkit.Rows("READ-COMMITTED"))
tk.MustExec("set @@tx_isolation='read-COMMITTED'")
result = tk.MustQuery("select @@tx_isolation;")
result.Check(testkit.Rows("READ-COMMITTED"))
tk.MustExec("set @@tx_isolation='REPEATABLE-READ'")
result = tk.MustQuery("select @@tx_isolation;")
result.Check(testkit.Rows("REPEATABLE-READ"))
tk.MustExec("SET GLOBAL tidb_skip_isolation_level_check = 0")
tk.MustExec("SET SESSION tidb_skip_isolation_level_check = 0")
err = tk.ExecToErr("set @@tx_isolation='SERIALIZABLE'")
require.True(t, terror.ErrorEqual(err, variable.ErrUnsupportedIsolationLevel), fmt.Sprintf("err %v", err))
tk.MustExec("set global allow_auto_random_explicit_insert=on;")
tk.MustQuery("select @@global.allow_auto_random_explicit_insert;").Check(testkit.Rows("1"))
}
func TestSelectGlobalVar(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustQuery("select @@global.max_connections;").Check(testkit.Rows("151"))
tk.MustQuery("select @@max_connections;").Check(testkit.Rows("151"))
tk.MustExec("set @@global.max_connections=100;")
tk.MustQuery("select @@global.max_connections;").Check(testkit.Rows("100"))
tk.MustQuery("select @@max_connections;").Check(testkit.Rows("100"))
tk.MustExec("set @@global.max_connections=151;")
// test for unknown variable.
err := tk.ExecToErr("select @@invalid")
require.True(t, terror.ErrorEqual(err, variable.ErrUnknownSystemVar), fmt.Sprintf("err %v", err))
err = tk.ExecToErr("select @@global.invalid")
require.True(t, terror.ErrorEqual(err, variable.ErrUnknownSystemVar), fmt.Sprintf("err %v", err))
}
func TestSetConcurrency(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
// test default value
tk.MustQuery("select @@tidb_executor_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.DefExecutorConcurrency)))
tk.MustQuery("select @@tidb_index_lookup_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_index_lookup_join_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_hash_join_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_hashagg_partial_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_hashagg_final_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_window_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_streamagg_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.DefTiDBStreamAggConcurrency)))
tk.MustQuery("select @@tidb_projection_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.ConcurrencyUnset)))
tk.MustQuery("select @@tidb_distsql_scan_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.DefDistSQLScanConcurrency)))
tk.MustQuery("select @@tidb_index_serial_scan_concurrency;").Check(testkit.Rows(strconv.Itoa(variable.DefIndexSerialScanConcurrency)))
vars := tk.Session().GetSessionVars()
require.Equal(t, variable.DefExecutorConcurrency, vars.ExecutorConcurrency)
require.Equal(t, variable.DefExecutorConcurrency, vars.IndexLookupConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.IndexLookupJoinConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashJoinConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashAggPartialConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashAggFinalConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.WindowConcurrency())
require.Equal(t, variable.DefTiDBStreamAggConcurrency, vars.StreamAggConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.ProjectionConcurrency())
require.Equal(t, variable.DefDistSQLScanConcurrency, vars.DistSQLScanConcurrency())
require.Equal(t, variable.DefIndexSerialScanConcurrency, vars.IndexSerialScanConcurrency())
// test setting deprecated variables
warnTpl := "Warning 1287 '%s' is deprecated and will be removed in a future release. Please use tidb_executor_concurrency instead"
checkSet := func(v string) {
tk.MustExec(fmt.Sprintf("set @@%s=1;", v))
tk.MustQuery("show warnings").Check(testkit.RowsWithSep("|", fmt.Sprintf(warnTpl, v)))
tk.MustQuery(fmt.Sprintf("select @@%s;", v)).Check(testkit.Rows("1"))
}
checkSet(variable.TiDBIndexLookupConcurrency)
require.Equal(t, 1, vars.IndexLookupConcurrency())
checkSet(variable.TiDBIndexLookupJoinConcurrency)
require.Equal(t, 1, vars.IndexLookupJoinConcurrency())
checkSet(variable.TiDBHashJoinConcurrency)
require.Equal(t, 1, vars.HashJoinConcurrency())
checkSet(variable.TiDBHashAggPartialConcurrency)
require.Equal(t, 1, vars.HashAggPartialConcurrency())
checkSet(variable.TiDBHashAggFinalConcurrency)
require.Equal(t, 1, vars.HashAggFinalConcurrency())
checkSet(variable.TiDBProjectionConcurrency)
require.Equal(t, 1, vars.ProjectionConcurrency())
checkSet(variable.TiDBWindowConcurrency)
require.Equal(t, 1, vars.WindowConcurrency())
checkSet(variable.TiDBStreamAggConcurrency)
require.Equal(t, 1, vars.StreamAggConcurrency())
tk.MustExec(fmt.Sprintf("set @@%s=1;", variable.TiDBDistSQLScanConcurrency))
tk.MustQuery(fmt.Sprintf("select @@%s;", variable.TiDBDistSQLScanConcurrency)).Check(testkit.Rows("1"))
require.Equal(t, 1, vars.DistSQLScanConcurrency())
tk.MustExec("set @@tidb_index_serial_scan_concurrency=4")
tk.MustQuery("show warnings").Check(testkit.Rows())
tk.MustQuery("select @@tidb_index_serial_scan_concurrency;").Check(testkit.Rows("4"))
require.Equal(t, 4, vars.IndexSerialScanConcurrency())
// test setting deprecated value unset
tk.MustExec("set @@tidb_index_lookup_concurrency=-1;")
tk.MustExec("set @@tidb_index_lookup_join_concurrency=-1;")
tk.MustExec("set @@tidb_hash_join_concurrency=-1;")
tk.MustExec("set @@tidb_hashagg_partial_concurrency=-1;")
tk.MustExec("set @@tidb_hashagg_final_concurrency=-1;")
tk.MustExec("set @@tidb_window_concurrency=-1;")
tk.MustExec("set @@tidb_streamagg_concurrency=-1;")
tk.MustExec("set @@tidb_projection_concurrency=-1;")
require.Equal(t, variable.DefExecutorConcurrency, vars.IndexLookupConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.IndexLookupJoinConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashJoinConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashAggPartialConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.HashAggFinalConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.WindowConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.StreamAggConcurrency())
require.Equal(t, variable.DefExecutorConcurrency, vars.ProjectionConcurrency())
tk.MustExec("set @@tidb_executor_concurrency=-1;")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_executor_concurrency value: '-1'"))
require.Equal(t, 1, vars.ExecutorConcurrency)
}
func TestEnableNoopFunctionsVar(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
defer func() {
// Ensure global settings are reset.
tk.MustExec("SET GLOBAL tx_read_only = 0")
tk.MustExec("SET GLOBAL transaction_read_only = 0")
tk.MustExec("SET GLOBAL read_only = 0")
tk.MustExec("SET GLOBAL super_read_only = 0")
tk.MustExec("SET GLOBAL offline_mode = 0")
tk.MustExec("SET GLOBAL tidb_enable_noop_functions = 0")
}()
// test for tidb_enable_noop_functions
tk.MustQuery(`select @@global.tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
err := tk.ExecToErr(`select get_lock('lock1', 2);`)
require.True(t, terror.ErrorEqual(err, expression.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
err = tk.ExecToErr(`select release_lock('lock1');`)
require.True(t, terror.ErrorEqual(err, expression.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
// change session var to 1
tk.MustExec(`set tidb_enable_noop_functions=1;`)
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("ON"))
tk.MustQuery(`select @@global.tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
tk.MustQuery(`select get_lock("lock", 10)`).Check(testkit.Rows("1"))
tk.MustQuery(`select release_lock("lock")`).Check(testkit.Rows("1"))
// restore to 0
tk.MustExec(`set tidb_enable_noop_functions=0;`)
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
tk.MustQuery(`select @@global.tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
err = tk.ExecToErr(`select get_lock('lock2', 10);`)
require.True(t, terror.ErrorEqual(err, expression.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
err = tk.ExecToErr(`select release_lock('lock2');`)
require.True(t, terror.ErrorEqual(err, expression.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
// set test
require.Error(t, tk.ExecToErr(`set tidb_enable_noop_functions='abc'`))
require.Error(t, tk.ExecToErr(`set tidb_enable_noop_functions=11`))
tk.MustExec(`set tidb_enable_noop_functions="off";`)
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
tk.MustExec(`set tidb_enable_noop_functions="on";`)
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("ON"))
tk.MustExec(`set tidb_enable_noop_functions=0;`)
tk.MustQuery(`select @@tidb_enable_noop_functions;`).Check(testkit.Rows("OFF"))
err = tk.ExecToErr("SET SESSION tx_read_only = 1")
require.True(t, terror.ErrorEqual(err, variable.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
tk.MustExec("SET SESSION tx_read_only = 0")
tk.MustQuery("select @@session.tx_read_only").Check(testkit.Rows("0"))
tk.MustQuery("select @@session.transaction_read_only").Check(testkit.Rows("0"))
err = tk.ExecToErr("SET GLOBAL tx_read_only = 1") // should fail.
require.True(t, terror.ErrorEqual(err, variable.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
tk.MustExec("SET GLOBAL tx_read_only = 0")
tk.MustQuery("select @@global.tx_read_only").Check(testkit.Rows("0"))
tk.MustQuery("select @@global.transaction_read_only").Check(testkit.Rows("0"))
err = tk.ExecToErr("SET SESSION transaction_read_only = 1")
require.True(t, terror.ErrorEqual(err, variable.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
tk.MustExec("SET SESSION transaction_read_only = 0")
tk.MustQuery("select @@session.tx_read_only").Check(testkit.Rows("0"))
tk.MustQuery("select @@session.transaction_read_only").Check(testkit.Rows("0"))
// works on SESSION because SESSION tidb_enable_noop_functions=1
tk.MustExec("SET tidb_enable_noop_functions = 1")
tk.MustExec("SET SESSION transaction_read_only = 1")
tk.MustQuery("select @@session.tx_read_only").Check(testkit.Rows("1"))
tk.MustQuery("select @@session.transaction_read_only").Check(testkit.Rows("1"))
// fails on GLOBAL because GLOBAL.tidb_enable_noop_functions still=0
err = tk.ExecToErr("SET GLOBAL transaction_read_only = 1")
require.True(t, terror.ErrorEqual(err, variable.ErrFunctionsNoopImpl), fmt.Sprintf("err %v", err))
tk.MustExec("SET GLOBAL tidb_enable_noop_functions = 1")
// now works
tk.MustExec("SET GLOBAL transaction_read_only = 1")
tk.MustQuery("select @@global.tx_read_only").Check(testkit.Rows("1"))
tk.MustQuery("select @@global.transaction_read_only").Check(testkit.Rows("1"))
tk.MustExec("SET GLOBAL transaction_read_only = 0")
tk.MustQuery("select @@global.tx_read_only").Check(testkit.Rows("0"))
tk.MustQuery("select @@global.transaction_read_only").Check(testkit.Rows("0"))
require.Error(t, tk.ExecToErr("SET tidb_enable_noop_functions = 0")) // fails because transaction_read_only/tx_read_only = 1
tk.MustExec("SET transaction_read_only = 0")
tk.MustExec("SET tidb_enable_noop_functions = 0") // now works.
// setting session doesn't change global, which succeeds because global.transaction_read_only/tx_read_only = 0
tk.MustExec("SET GLOBAL tidb_enable_noop_functions = 0")
// but if global.transaction_read_only=1, it would fail
tk.MustExec("SET GLOBAL tidb_enable_noop_functions = 1")
tk.MustExec("SET GLOBAL transaction_read_only = 1")
// fails
require.Error(t, tk.ExecToErr("SET GLOBAL tidb_enable_noop_functions = 0"))
// reset for rest of tests.
tk.MustExec("SET GLOBAL transaction_read_only = 0")
tk.MustExec("SET GLOBAL tidb_enable_noop_functions = 0")
tk.MustExec("set global read_only = 0")
tk.MustQuery("select @@global.read_only;").Check(testkit.Rows("0"))
tk.MustExec("set global read_only = off")
tk.MustQuery("select @@global.read_only;").Check(testkit.Rows("0"))
tk.MustExec("SET global tidb_enable_noop_functions = 1")
tk.MustExec("set global read_only = 1")
tk.MustQuery("select @@global.read_only;").Check(testkit.Rows("1"))
tk.MustExec("set global read_only = on")
tk.MustQuery("select @@global.read_only;").Check(testkit.Rows("1"))
require.Error(t, tk.ExecToErr("set global read_only = abc"))
}
// https://github.com/pingcap/tidb/issues/29670
func TestDefaultBehavior(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustQuery("SELECT @@default_storage_engine").Check(testkit.Rows("InnoDB"))
tk.MustExec("SET GLOBAL default_storage_engine = 'somethingweird'")
tk.MustExec("SET default_storage_engine = 'MyISAM'")
tk.MustQuery("SELECT @@default_storage_engine").Check(testkit.Rows("MyISAM"))
tk.MustExec("SET default_storage_engine = DEFAULT") // reads from global value
tk.MustQuery("SELECT @@default_storage_engine").Check(testkit.Rows("somethingweird"))
tk.MustExec("SET @@SESSION.default_storage_engine = @@GLOBAL.default_storage_engine") // example from MySQL manual
tk.MustQuery("SELECT @@default_storage_engine").Check(testkit.Rows("somethingweird"))
tk.MustExec("SET GLOBAL default_storage_engine = 'somethingweird2'")
tk.MustExec("SET default_storage_engine = @@GLOBAL.default_storage_engine") // variation of example
tk.MustQuery("SELECT @@default_storage_engine").Check(testkit.Rows("somethingweird2"))
tk.MustExec("SET default_storage_engine = DEFAULT") // restore default again for session global
tk.MustExec("SET GLOBAL default_storage_engine = DEFAULT") // restore default for global
tk.MustQuery("SELECT @@SESSION.default_storage_engine, @@GLOBAL.default_storage_engine").Check(testkit.Rows("somethingweird2 InnoDB"))
// Try sql_mode option which has validation
err := tk.ExecToErr("SET GLOBAL sql_mode = 'DEFAULT'") // illegal now
require.EqualError(t, err, `ERROR 1231 (42000): Variable 'sql_mode' can't be set to the value of 'DEFAULT'`)
tk.MustExec("SET GLOBAL sql_mode = DEFAULT")
}
func TestRemovedSysVars(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
// test for tidb_enable_noop_functions
// In SET context, it just noops:
tk.MustExec(`SET tidb_enable_global_temporary_table = 1`)
tk.MustExec(`SET tidb_slow_log_masking = 1`)
tk.MustExec(`SET GLOBAL tidb_enable_global_temporary_table = 1`)
tk.MustExec(`SET GLOBAL tidb_slow_log_masking = 1`)
// In SELECT context it returns a specifc error
// (to avoid presenting dummy data)
tk.MustGetErrCode("SELECT @@tidb_slow_log_masking", errno.ErrVariableNoLongerSupported)
tk.MustGetErrCode("SELECT @@tidb_enable_global_temporary_table", errno.ErrVariableNoLongerSupported)
}
func TestSetClusterConfig(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
serversInfo := []infoschema.ServerInfo{
{ServerType: "tidb", Address: "127.0.0.1:1111", StatusAddr: "127.0.0.1:1111"},
{ServerType: "tidb", Address: "127.0.0.1:2222", StatusAddr: "127.0.0.1:2222"},
{ServerType: "pd", Address: "127.0.0.1:3333", StatusAddr: "127.0.0.1:3333"},
{ServerType: "pd", Address: "127.0.0.1:4444", StatusAddr: "127.0.0.1:4444"},
{ServerType: "tikv", Address: "127.0.0.1:5555", StatusAddr: "127.0.0.1:5555"},
{ServerType: "tikv", Address: "127.0.0.1:6666", StatusAddr: "127.0.0.1:6666"},
}
var serverInfoErr error
serverInfoFunc := func(sessionctx.Context) ([]infoschema.ServerInfo, error) {
return serversInfo, serverInfoErr
}
tk.Session().SetValue(executor.TestSetConfigServerInfoKey, serverInfoFunc)
require.EqualError(t, tk.ExecToErr("set config xxx log.level='info'"), "unknown type xxx")
require.EqualError(t, tk.ExecToErr("set config tidb log.level='info'"), "TiDB doesn't support to change configs online, please use SQL variables")
require.EqualError(t, tk.ExecToErr("set config '127.0.0.1:1111' log.level='info'"), "TiDB doesn't support to change configs online, please use SQL variables")
require.EqualError(t, tk.ExecToErr("set config '127.a.b.c:1234' log.level='info'"), "invalid instance 127.a.b.c:1234") // name doesn't resolve.
require.EqualError(t, tk.ExecToErr("set config 'example.com:1111' log.level='info'"), "instance example.com:1111 is not found in this cluster") // name resolves.
require.EqualError(t, tk.ExecToErr("set config tikv log.level=null"), "can't set config to null")
require.EqualError(t, tk.ExecToErr("set config '1.1.1.1:1111' log.level='info'"), "instance 1.1.1.1:1111 is not found in this cluster")
httpCnt := 0
tk.Session().SetValue(executor.TestSetConfigHTTPHandlerKey, func(*http.Request) (*http.Response, error) {
httpCnt++
return &http.Response{StatusCode: http.StatusOK, Body: io.NopCloser(nil)}, nil
})
tk.MustExec("set config tikv log.level='info'")
require.Equal(t, 2, httpCnt)
httpCnt = 0
tk.MustExec("set config '127.0.0.1:5555' log.level='info'")
require.Equal(t, 1, httpCnt)
httpCnt = 0
tk.Session().SetValue(executor.TestSetConfigHTTPHandlerKey, func(*http.Request) (*http.Response, error) {
return nil, errors.New("something wrong")
})
tk.MustExec("set config tikv log.level='info'")
tk.MustQuery("show warnings").Check(testkit.Rows(
"Warning 1105 something wrong", "Warning 1105 something wrong"))
tk.Session().SetValue(executor.TestSetConfigHTTPHandlerKey, func(*http.Request) (*http.Response, error) {
return &http.Response{StatusCode: http.StatusBadRequest, Body: io.NopCloser(bytes.NewBufferString("WRONG"))}, nil
})
tk.MustExec("set config tikv log.level='info'")
tk.MustQuery("show warnings").Check(testkit.Rows(
"Warning 1105 bad request to http://127.0.0.1:5555/config: WRONG", "Warning 1105 bad request to http://127.0.0.1:6666/config: WRONG"))
}
func TestSetClusterConfigJSONData(t *testing.T) {
var d types.MyDecimal
require.NoError(t, d.FromFloat64(123.456))
tyBool := types.NewFieldType(mysql.TypeTiny)
tyBool.Flag |= mysql.IsBooleanFlag
cases := []struct {
val expression.Expression
result string
succ bool
}{
{&expression.Constant{Value: types.NewIntDatum(1), RetType: tyBool}, `{"k":true}`, true},
{&expression.Constant{Value: types.NewIntDatum(0), RetType: tyBool}, `{"k":false}`, true},
{&expression.Constant{Value: types.NewIntDatum(2333), RetType: types.NewFieldType(mysql.TypeLong)}, `{"k":2333}`, true},
{&expression.Constant{Value: types.NewFloat64Datum(23.33), RetType: types.NewFieldType(mysql.TypeDouble)}, `{"k":23.33}`, true},
{&expression.Constant{Value: types.NewStringDatum("abcd"), RetType: types.NewFieldType(mysql.TypeString)}, `{"k":"abcd"}`, true},
{&expression.Constant{Value: types.NewDecimalDatum(&d), RetType: types.NewFieldType(mysql.TypeNewDecimal)}, `{"k":123.456}`, true},
{&expression.Constant{Value: types.NewDatum(nil), RetType: types.NewFieldType(mysql.TypeLonglong)}, "", false},
{&expression.Constant{RetType: types.NewFieldType(mysql.TypeJSON)}, "", false}, // unsupported type
{nil, "", false},
{&expression.Constant{Value: types.NewDatum(`["no","no","lz4","lz4","lz4","zstd","zstd"]`), RetType: types.NewFieldType(mysql.TypeString)}, `{"k":"[\"no\",\"no\",\"lz4\",\"lz4\",\"lz4\",\"zstd\",\"zstd\"]"}`, true},
}
ctx := mock.NewContext()
for _, c := range cases {
result, err := executor.ConvertConfigItem2JSON(ctx, "k", c.val)
if c.succ {
require.Equal(t, result, c.result)
} else {
require.Error(t, err)
}
}
}
func TestSetTopSQLVariables(t *testing.T) {
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/domain/skipLoadSysVarCacheLoop", `return(true)`))
defer func() {
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/domain/skipLoadSysVarCacheLoop"))
}()
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustExec("set @@global.tidb_enable_top_sql='On';")
tk.MustQuery("select @@global.tidb_enable_top_sql;").Check(testkit.Rows("1"))
tk.MustExec("set @@global.tidb_enable_top_sql='off';")
tk.MustQuery("select @@global.tidb_enable_top_sql;").Check(testkit.Rows("0"))
tk.MustExec("set @@global.tidb_top_sql_max_time_series_count=20;")
tk.MustQuery("select @@global.tidb_top_sql_max_time_series_count;").Check(testkit.Rows("20"))
require.Equal(t, int64(20), topsqlstate.GlobalState.MaxStatementCount.Load())
err := tk.ExecToErr("set @@global.tidb_top_sql_max_time_series_count='abc';")
require.EqualError(t, err, "[variable:1232]Incorrect argument type to variable 'tidb_top_sql_max_time_series_count'")
tk.MustExec("set @@global.tidb_top_sql_max_time_series_count='-1';")
tk.MustQuery("select @@global.tidb_top_sql_max_time_series_count;").Check(testkit.Rows("1"))
tk.MustExec("set @@global.tidb_top_sql_max_time_series_count='5001';")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_top_sql_max_time_series_count value: '5001'"))
tk.MustQuery("select @@global.tidb_top_sql_max_time_series_count;").Check(testkit.Rows("5000"))
tk.MustExec("set @@global.tidb_top_sql_max_time_series_count=20;")
tk.MustQuery("select @@global.tidb_top_sql_max_time_series_count;").Check(testkit.Rows("20"))
require.Equal(t, int64(20), topsqlstate.GlobalState.MaxStatementCount.Load())
tk.MustExec("set @@global.tidb_top_sql_max_meta_count=10000;")
tk.MustQuery("select @@global.tidb_top_sql_max_meta_count;").Check(testkit.Rows("10000"))
require.Equal(t, int64(10000), topsqlstate.GlobalState.MaxCollect.Load())
err = tk.ExecToErr("set @@global.tidb_top_sql_max_meta_count='abc';")
require.EqualError(t, err, "[variable:1232]Incorrect argument type to variable 'tidb_top_sql_max_meta_count'")
tk.MustExec("set @@global.tidb_top_sql_max_meta_count='-1';")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_top_sql_max_meta_count value: '-1'"))
tk.MustQuery("select @@global.tidb_top_sql_max_meta_count;").Check(testkit.Rows("1"))
tk.MustExec("set @@global.tidb_top_sql_max_meta_count='10001';")
tk.MustQuery(`show warnings`).Check(testkit.Rows("Warning 1292 Truncated incorrect tidb_top_sql_max_meta_count value: '10001'"))
tk.MustQuery("select @@global.tidb_top_sql_max_meta_count;").Check(testkit.Rows("10000"))
tk.MustExec("set @@global.tidb_top_sql_max_meta_count=5000;")
tk.MustQuery("select @@global.tidb_top_sql_max_meta_count;").Check(testkit.Rows("5000"))
require.Equal(t, int64(5000), topsqlstate.GlobalState.MaxCollect.Load())
tk.MustQuery("show variables like '%top_sql%'").Check(testkit.Rows("tidb_enable_top_sql OFF", "tidb_top_sql_max_meta_count 5000", "tidb_top_sql_max_time_series_count 20"))
tk.MustQuery("show global variables like '%top_sql%'").Check(testkit.Rows("tidb_enable_top_sql OFF", "tidb_top_sql_max_meta_count 5000", "tidb_top_sql_max_time_series_count 20"))
}
func TestInstanceScopeSwitching(t *testing.T) {
store, clean := testkit.CreateMockStore(t)
defer clean()
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
// enable 'switching' to SESSION variables
tk.MustExec("set tidb_enable_legacy_instance_scope = 1")
tk.MustExec("set tidb_general_log = 1")
tk.MustQuery(`show warnings`).Check(testkit.Rows(fmt.Sprintf("Warning %d modifying tidb_general_log will require SET GLOBAL in a future version of TiDB", errno.ErrInstanceScope)))
// disable 'switching' to SESSION variables
tk.MustExec("set tidb_enable_legacy_instance_scope = 0")
tk.MustGetErrCode("set tidb_general_log = 1", errno.ErrGlobalVariable)
}
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