64 lines
2.0 KiB
Go
64 lines
2.0 KiB
Go
// Copyright 2023 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 core_test
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import (
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"context"
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"fmt"
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"testing"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/parser"
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"github.com/pingcap/tidb/parser/model"
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"github.com/pingcap/tidb/planner"
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"github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/sessiontxn"
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"github.com/pingcap/tidb/testkit"
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"github.com/pingcap/tidb/testkit/testdata"
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"github.com/stretchr/testify/require"
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)
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// Test redundant conditions in single table and join predicates.
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func TestRemoveRedundantPredicates(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("set tidb_cost_model_version=2")
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tk.MustExec("set tidb_opt_limit_push_down_threshold=0")
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var input []string
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var output []struct {
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SQL string
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Best string
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}
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planSuiteData := core.GetPlanSuiteData()
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planSuiteData.LoadTestCases(t, &input, &output)
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p := parser.New()
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is := infoschema.MockInfoSchema([]*model.TableInfo{core.MockSignedTable(), core.MockUnsignedTable()})
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for i, tt := range input {
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comment := fmt.Sprintf("case: %v, sql: %s", i, tt)
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stmt, err := p.ParseOneStmt(tt, "", "")
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require.NoError(t, err, comment)
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require.NoError(t, sessiontxn.NewTxn(context.Background(), tk.Session()))
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p, _, err := planner.Optimize(context.TODO(), tk.Session(), stmt, is)
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require.NoError(t, err)
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testdata.OnRecord(func() {
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output[i].SQL = tt
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output[i].Best = core.ToString(p)
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})
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require.Equal(t, output[i].Best, core.ToString(p), comment)
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}
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}
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