You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
3.6 KiB
86 lines
3.6 KiB
// Copyright 2018 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package memo
|
|
|
|
import (
|
|
. "github.com/pingcap/check"
|
|
plannercore "github.com/pingcap/tidb/planner/core"
|
|
)
|
|
|
|
func (s *testMemoSuite) TestGetOperand(c *C) {
|
|
c.Assert(GetOperand(&plannercore.LogicalJoin{}), Equals, OperandJoin)
|
|
c.Assert(GetOperand(&plannercore.LogicalAggregation{}), Equals, OperandAggregation)
|
|
c.Assert(GetOperand(&plannercore.LogicalProjection{}), Equals, OperandProjection)
|
|
c.Assert(GetOperand(&plannercore.LogicalSelection{}), Equals, OperandSelection)
|
|
c.Assert(GetOperand(&plannercore.LogicalApply{}), Equals, OperandApply)
|
|
c.Assert(GetOperand(&plannercore.LogicalMaxOneRow{}), Equals, OperandMaxOneRow)
|
|
c.Assert(GetOperand(&plannercore.LogicalTableDual{}), Equals, OperandTableDual)
|
|
c.Assert(GetOperand(&plannercore.DataSource{}), Equals, OperandDataSource)
|
|
c.Assert(GetOperand(&plannercore.LogicalUnionScan{}), Equals, OperandUnionScan)
|
|
c.Assert(GetOperand(&plannercore.LogicalUnionAll{}), Equals, OperandUnionAll)
|
|
c.Assert(GetOperand(&plannercore.LogicalSort{}), Equals, OperandSort)
|
|
c.Assert(GetOperand(&plannercore.LogicalTopN{}), Equals, OperandTopN)
|
|
c.Assert(GetOperand(&plannercore.LogicalLock{}), Equals, OperandLock)
|
|
c.Assert(GetOperand(&plannercore.LogicalLimit{}), Equals, OperandLimit)
|
|
}
|
|
|
|
func (s *testMemoSuite) TestOperandMatch(c *C) {
|
|
c.Assert(OperandAny.Match(OperandLimit), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandSelection), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandJoin), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandMaxOneRow), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandAny), IsTrue)
|
|
|
|
c.Assert(OperandLimit.Match(OperandAny), IsTrue)
|
|
c.Assert(OperandSelection.Match(OperandAny), IsTrue)
|
|
c.Assert(OperandJoin.Match(OperandAny), IsTrue)
|
|
c.Assert(OperandMaxOneRow.Match(OperandAny), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandAny), IsTrue)
|
|
|
|
c.Assert(OperandLimit.Match(OperandLimit), IsTrue)
|
|
c.Assert(OperandSelection.Match(OperandSelection), IsTrue)
|
|
c.Assert(OperandJoin.Match(OperandJoin), IsTrue)
|
|
c.Assert(OperandMaxOneRow.Match(OperandMaxOneRow), IsTrue)
|
|
c.Assert(OperandAny.Match(OperandAny), IsTrue)
|
|
|
|
c.Assert(OperandLimit.Match(OperandSelection), IsFalse)
|
|
c.Assert(OperandLimit.Match(OperandJoin), IsFalse)
|
|
c.Assert(OperandLimit.Match(OperandMaxOneRow), IsFalse)
|
|
}
|
|
|
|
func (s *testMemoSuite) TestNewPattern(c *C) {
|
|
p := NewPattern(OperandAny, EngineAll)
|
|
c.Assert(p.Operand, Equals, OperandAny)
|
|
c.Assert(p.Children, IsNil)
|
|
|
|
p = NewPattern(OperandJoin, EngineAll)
|
|
c.Assert(p.Operand, Equals, OperandJoin)
|
|
c.Assert(p.Children, IsNil)
|
|
}
|
|
|
|
func (s *testMemoSuite) TestPatternSetChildren(c *C) {
|
|
p := NewPattern(OperandAny, EngineAll)
|
|
p.SetChildren(NewPattern(OperandLimit, EngineAll))
|
|
c.Assert(len(p.Children), Equals, 1)
|
|
c.Assert(p.Children[0].Operand, Equals, OperandLimit)
|
|
c.Assert(p.Children[0].Children, IsNil)
|
|
|
|
p = NewPattern(OperandJoin, EngineAll)
|
|
p.SetChildren(NewPattern(OperandProjection, EngineAll), NewPattern(OperandSelection, EngineAll))
|
|
c.Assert(len(p.Children), Equals, 2)
|
|
c.Assert(p.Children[0].Operand, Equals, OperandProjection)
|
|
c.Assert(p.Children[0].Children, IsNil)
|
|
c.Assert(p.Children[1].Operand, Equals, OperandSelection)
|
|
c.Assert(p.Children[1].Children, IsNil)
|
|
}
|
|
|