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72 lines
2.5 KiB
72 lines
2.5 KiB
// Copyright 2017-present 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor_test
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import (
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"context"
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"fmt"
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. "github.com/pingcap/check"
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"github.com/pingcap/parser"
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"github.com/pingcap/tidb/executor"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/planner"
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plannercore "github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/util/testkit"
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)
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func (s *testSuite7) TestStmtLabel(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("create table label (c1 int primary key, c2 int, c3 int, index (c2))")
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for i := 0; i < 10; i++ {
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sql := fmt.Sprintf("insert into label values (%d, %d, %d)", i, i, i)
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tk.MustExec(sql)
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}
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tk.MustExec("analyze table label")
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tests := []struct {
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sql string
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label string
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}{
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{"select 1", "Select"},
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{"select * from label t1, label t2", "Select"},
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{"select * from label t1 where t1.c3 > (select count(t1.c1 = t2.c1) = 0 from label t2)", "Select"},
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{"select count(*) from label", "Select"},
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{"select * from label where c2 = 1", "Select"},
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{"select c1, c2 from label where c2 = 1", "Select"},
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{"select * from label where c1 > 1", "Select"},
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{"select * from label where c1 > 1", "Select"},
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{"select * from label order by c3 limit 1", "Select"},
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{"delete from label", "Delete"},
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{"delete from label where c1 = 1", "Delete"},
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{"delete from label where c2 = 1", "Delete"},
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{"delete from label where c2 = 1 order by c3 limit 1", "Delete"},
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{"update label set c3 = 3", "Update"},
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{"update label set c3 = 3 where c1 = 1", "Update"},
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{"update label set c3 = 3 where c2 = 1", "Update"},
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{"update label set c3 = 3 where c2 = 1 order by c3 limit 1", "Update"},
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}
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for _, tt := range tests {
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stmtNode, err := parser.New().ParseOneStmt(tt.sql, "", "")
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c.Check(err, IsNil)
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is := infoschema.GetInfoSchema(tk.Se)
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err = plannercore.Preprocess(tk.Se.(sessionctx.Context), stmtNode, is)
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c.Assert(err, IsNil)
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_, _, err = planner.Optimize(context.TODO(), tk.Se, stmtNode, is)
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c.Assert(err, IsNil)
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c.Assert(executor.GetStmtLabel(stmtNode), Equals, tt.label)
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}
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}
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