39 lines
1.4 KiB
Go
39 lines
1.4 KiB
Go
// Copyright 2021 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package bindinfo_test
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import (
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"testing"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/pkg/testkit"
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"github.com/stretchr/testify/require"
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)
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func TestOptimizeOnlyOnce(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t(a int, b int, index idxa(a))")
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tk.MustExec("create global binding for select * from t using select * from t use index(idxa)")
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require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/planner/checkOptimizeCountOne", "return(\"select * from t\")"))
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defer func() {
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require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/planner/checkOptimizeCountOne"))
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}()
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tk.MustQuery("select * from t").Check(testkit.Rows())
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}
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