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bindinfo: rename tidb_opt_enable_universal_binding as tidb_opt_enable…
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…_fuzzy_binding (#50081)

ref #48875
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@hawkingrei
hawkingrei authored Jan 4, 2024
1 parent 8cebf0f commit 8c49f5c
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Showing 5 changed files with 27 additions and 27 deletions.
40 changes: 20 additions & 20 deletions pkg/bindinfo/universal_binding_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -79,12 +79,12 @@ func TestUniversalBindingBasic(t *testing.T) {
for _, useDB := range []string{"test", "test1", "test2"} {
tk.MustExec("use " + useDB)
for _, testDB := range []string{"", "test.", "test1.", "test2."} {
tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`) // enabled
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`) // enabled
require.True(t, tk.MustUseIndex(fmt.Sprintf("select * from %vt", testDB), idx))
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
require.True(t, tk.MustUseIndex(fmt.Sprintf("select * from %vt", testDB), idx))
tk.MustQuery(`show warnings`).Check(testkit.Rows()) // no warning
tk.MustExec(`set @@tidb_opt_enable_universal_binding=0`) // disabled
tk.MustQuery(`show warnings`).Check(testkit.Rows()) // no warning
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=0`) // disabled
tk.MustQuery(fmt.Sprintf("select * from %vt", testDB))
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))
}
Expand Down Expand Up @@ -133,7 +133,7 @@ func TestUniversalBindingPriority(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, store)

tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)
tk.MustExec(`use test`)
tk.MustExec(`create table t (a int, b int, c int, d int, e int, key(a), key(b), key(c), key(d), key(e))`)

Expand All @@ -152,11 +152,11 @@ func TestUniversalBindingPriority(t *testing.T) {
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))

// global normal takes effect again if disable universal bindings
tk.MustExec(`set @@tidb_opt_enable_universal_binding=0`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=0`)
tk.MustExec(`create global binding using select /*+ use_index(t, b) */ * from t`)
tk.MustUseIndex(`select * from t`, "b")
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)

// session normal > session universal
tk.MustExec(`create session binding using select /*+ use_index(t, d) */ * from t`)
Expand Down Expand Up @@ -212,10 +212,10 @@ func TestUniversalBindingSwitch(t *testing.T) {
tk1.MustExec(`use test1`)
tk1.MustQuery(`select * from test.t`).Check(testkit.Rows())
tk1.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))
tk1.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk1.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)
tk1.MustUseIndex(`select * from test.t`, "b")
tk1.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
tk1.MustExec(`set @@tidb_opt_enable_universal_binding=0`)
tk1.MustExec(`set @@tidb_opt_enable_fuzzy_binding=0`)
tk1.MustQuery(`select * from test.t`).Check(testkit.Rows())
tk1.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))

Expand All @@ -225,18 +225,18 @@ func TestUniversalBindingSwitch(t *testing.T) {
tk2.MustExec(`create global universal binding using select /*+ use_index(t, b) */ * from t`)
tk2.MustQuery(`select * from test.t`).Check(testkit.Rows())
tk2.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))
tk2.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk2.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)
tk2.MustUseIndex(`select * from test.t`, "b")
tk2.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
tk2.MustExec(`set @@tidb_opt_enable_universal_binding=0`)
tk2.MustExec(`set @@tidb_opt_enable_fuzzy_binding=0`)
tk2.MustQuery(`select * from test.t`).Check(testkit.Rows())
tk2.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))

// the default value is off
tk3 := testkit.NewTestKit(t, store)
tk3.MustQuery(`select @@tidb_opt_enable_universal_binding`).Check(testkit.Rows("0"))
tk3.MustQuery(`show session variables like 'tidb_opt_enable_universal_binding'`).Check(testkit.Rows("tidb_opt_enable_universal_binding OFF"))
tk3.MustQuery(`show global variables like 'tidb_opt_enable_universal_binding'`).Check(testkit.Rows("tidb_opt_enable_universal_binding OFF"))
tk3.MustQuery(`select @@tidb_opt_enable_fuzzy_binding`).Check(testkit.Rows("0"))
tk3.MustQuery(`show session variables like 'tidb_opt_enable_fuzzy_binding'`).Check(testkit.Rows("tidb_opt_enable_fuzzy_binding OFF"))
tk3.MustQuery(`show global variables like 'tidb_opt_enable_fuzzy_binding'`).Check(testkit.Rows("tidb_opt_enable_fuzzy_binding OFF"))
}

func TestUniversalBindingSetVar(t *testing.T) {
Expand All @@ -247,20 +247,20 @@ func TestUniversalBindingSetVar(t *testing.T) {
tk.MustExec(`create table t (a int, b int, key(a), key(b))`)
tk.MustExec(`create universal binding using select /*+ use_index(t, a) */ * from t`)

tk.MustExec(`set @@tidb_opt_enable_universal_binding=0`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=0`)
tk.MustExec(`select * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))
tk.MustExec(`select /*+ set_var(tidb_opt_enable_universal_binding=1) */ * from t`)
tk.MustExec(`select /*+ set_var(tidb_opt_enable_fuzzy_binding=1) */ * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
tk.MustExec(`select /*+ set_var(tidb_opt_enable_universal_binding=0) */ * from t`)
tk.MustExec(`select /*+ set_var(tidb_opt_enable_fuzzy_binding=0) */ * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))

tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)
tk.MustExec(`select * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
tk.MustExec(`select /*+ set_var(tidb_opt_enable_universal_binding=0) */ * from t`)
tk.MustExec(`select /*+ set_var(tidb_opt_enable_fuzzy_binding=0) */ * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("0"))
tk.MustExec(`select /*+ set_var(tidb_opt_enable_universal_binding=1) */ * from t`)
tk.MustExec(`select /*+ set_var(tidb_opt_enable_fuzzy_binding=1) */ * from t`)
tk.MustQuery(`select @@last_plan_from_binding`).Check(testkit.Rows("1"))
}

Expand Down Expand Up @@ -323,7 +323,7 @@ func TestUniversalBindingHints(t *testing.T) {
tk.MustExec(`create table t2 (a int, b int, c int, d int, key(a), key(b), key(c), key(d))`)
tk.MustExec(`create table t3 (a int, b int, c int, d int, key(a), key(b), key(c), key(d))`)
}
tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)

for _, c := range []struct {
binding string
Expand Down
2 changes: 1 addition & 1 deletion pkg/infoschema/test/clustertablestest/cluster_tables_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1119,7 +1119,7 @@ func TestUniversalBindingFromHistory(t *testing.T) {
})

tk.MustExec(`admin reload bindings`)
tk.MustExec(`set @@tidb_opt_enable_universal_binding=1`)
tk.MustExec(`set @@tidb_opt_enable_fuzzy_binding=1`)
tk.MustExec(`create database test2`)
tk.MustExec(`use test2`)
tk.MustExec(`create table t (a int, b int, c int, key(a), key(b), key(c))`)
Expand Down
4 changes: 2 additions & 2 deletions pkg/sessionctx/variable/session.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1389,8 +1389,8 @@ type SessionVars struct {
// EnableNonPreparedPlanCacheForDML indicates whether to enable non-prepared plan cache for DML statements.
EnableNonPreparedPlanCacheForDML bool

// EnableUniversalBinding indicates whether to enable universal binding.
EnableUniversalBinding bool
// EnableFuzzyBinding indicates whether to enable fuzzy binding.
EnableFuzzyBinding bool

// PlanCacheInvalidationOnFreshStats controls if plan cache will be invalidated automatically when
// related stats are analyzed after the plan cache is generated.
Expand Down
4 changes: 2 additions & 2 deletions pkg/sessionctx/variable/sysvar.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1214,8 +1214,8 @@ var defaultSysVars = []*SysVar{
s.EnableNonPreparedPlanCacheForDML = TiDBOptOn(val)
return nil
}},
{Scope: ScopeGlobal | ScopeSession, Name: TiDBOptEnableUniversalBinding, Value: BoolToOnOff(false), Type: TypeBool, IsHintUpdatableVerfied: true, SetSession: func(s *SessionVars, val string) error {
s.EnableUniversalBinding = TiDBOptOn(val)
{Scope: ScopeGlobal | ScopeSession, Name: TiDBOptEnableFuzzyBinding, Value: BoolToOnOff(false), Type: TypeBool, IsHintUpdatableVerfied: true, SetSession: func(s *SessionVars, val string) error {
s.EnableFuzzyBinding = TiDBOptOn(val)
return nil
}},
{Scope: ScopeGlobal | ScopeSession, Name: TiDBNonPreparedPlanCacheSize, Value: strconv.FormatUint(uint64(DefTiDBNonPreparedPlanCacheSize), 10), Type: TypeUnsigned, MinValue: 1, MaxValue: 100000, SetSession: func(s *SessionVars, val string) error {
Expand Down
4 changes: 2 additions & 2 deletions pkg/sessionctx/variable/tidb_vars.go
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Original file line number Diff line number Diff line change
Expand Up @@ -605,8 +605,8 @@ const (
// TiDBEvolvePlanBaselines indicates whether the evolution of plan baselines is enabled.
TiDBEvolvePlanBaselines = "tidb_evolve_plan_baselines"

// TiDBOptEnableUniversalBinding indicates whether to enable the universal binding.
TiDBOptEnableUniversalBinding = "tidb_opt_enable_universal_binding"
// TiDBOptEnableFuzzyBinding indicates whether to enable the universal binding.
TiDBOptEnableFuzzyBinding = "tidb_opt_enable_fuzzy_binding"

// TiDBEnableExtendedStats indicates whether the extended statistics feature is enabled.
TiDBEnableExtendedStats = "tidb_enable_extended_stats"
Expand Down

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