60 lines
2.4 KiB
Go
60 lines
2.4 KiB
Go
// 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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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/executor"
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"github.com/pingcap/tidb/parser"
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"github.com/pingcap/tidb/plan"
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"github.com/pingcap/tidb/util/testkit"
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)
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func (s *testSuite) 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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cases := []struct {
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sql string
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label string
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}{
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{"select 1", "SelectSimpleFull"},
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{"select * from label t1, label t2", "SelectJoinFull"},
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{"select * from label t1 where t1.c3 > (select count(t1.c1 = t2.c1) = 0 from label t2)", "SelectApplyFull"},
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{"select count(*) from label", "SelectAggFull"},
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{"select * from label where c2 = 1", "SelectIndexRange"},
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{"select c1, c2 from label where c2 = 1", "SelectIndexOnlyRange"},
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{"select * from label where c1 > 1", "SelectTableRange"},
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{"select * from label where c1 > 1", "SelectTableRange"},
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{"select * from label order by c3 limit 1", "SelectTableFullOrderLimit"},
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{"delete from label", "DeleteTableFull"},
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{"delete from label where c1 = 1", "DeleteTableRange"},
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{"delete from label where c2 = 1", "DeleteIndexRange"},
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{"delete from label where c2 = 1 order by c3 limit 1", "DeleteIndexRangeOrderLimit"},
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{"update label set c3 = 3", "UpdateTableFull"},
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{"update label set c3 = 3 where c1 = 1", "UpdateTableRange"},
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{"update label set c3 = 3 where c2 = 1", "UpdateIndexRange"},
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{"update label set c3 = 3 where c2 = 1 order by c3 limit 1", "UpdateIndexRangeOrderLimit"},
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}
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for _, ca := range cases {
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stmtNode, err := parser.New().ParseOneStmt(ca.sql, "", "")
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c.Check(err, IsNil)
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is := executor.GetInfoSchema(tk.Se)
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c.Assert(plan.Preprocess(stmtNode, is, tk.Se), IsNil)
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p, err := plan.Optimize(tk.Se, stmtNode, is)
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c.Assert(err, IsNil)
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c.Assert(executor.StatementLabel(stmtNode, p), Equals, ca.label)
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}
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}
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