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Golang field.ColToResultField函数代码示例

本文整理汇总了Golang中github.com/pingcap/tidb/field.ColToResultField函数的典型用法代码示例。如果您正苦于以下问题：Golang ColToResultField函数的具体用法？Golang ColToResultField怎么用？Golang ColToResultField使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了ColToResultField函数的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: TestUnion

func (t *testUnionSuit) TestUnion(c *C) {
	tblPlan := &testTablePlan{t.data, []string{"id", "name"}, 0}
	tblPlan2 := &testTablePlan{t.data2, []string{"id", "name"}, 0}
	cols := []*column.Col{
		{
			ColumnInfo: model.ColumnInfo{
				ID:           0,
				Name:         model.NewCIStr("id"),
				Offset:       0,
				DefaultValue: 0,
				FieldType:    *types.NewFieldType(mysql.TypeLonglong),
			},
		},
		{
			ColumnInfo: model.ColumnInfo{
				ID:           1,
				Name:         model.NewCIStr("name"),
				Offset:       1,
				DefaultValue: nil,
				FieldType:    *types.NewFieldType(mysql.TypeVarchar),
			},
		},
	}

	// Set Flen explicitly here, because following ColToResultField will change Flen to zero.
	// TODO: remove this if ColToResultField update.
	cols[1].FieldType.Flen = 100

	pln := &plans.UnionPlan{
		Srcs: []plan.Plan{
			tblPlan,
			tblPlan2,
		},
		Distincts: []bool{true},
		RFields: []*field.ResultField{
			field.ColToResultField(cols[0], "t"),
			field.ColToResultField(cols[1], "t"),
		},
	}
	rset := rsets.Recordset{
		Plan: pln,
		Ctx:  mock.NewContext()}
	cnt := 0
	rset.Do(func(data []interface{}) (bool, error) {
		cnt++
		return true, nil
	})
	c.Assert(cnt, Equals, 6)
}
开发者ID:kevinhuo88888，项目名称:tidb，代码行数:49，代码来源:union_test.go

示例2: TestUnion

func (t *testUnionSuit) TestUnion(c *C) {
	tblPlan := &testTablePlan{t.data, []string{"id", "name"}}
	tblPlan2 := &testTablePlan{t.data2, []string{"id", "name"}}
	cols := []*column.Col{
		&column.Col{
			ColumnInfo: model.ColumnInfo{
				ID:           0,
				Name:         model.NewCIStr("id"),
				Offset:       0,
				DefaultValue: 0,
				FieldType:    *types.NewFieldType(mysql.TypeLonglong),
			},
		},
		&column.Col{
			ColumnInfo: model.ColumnInfo{
				ID:           1,
				Name:         model.NewCIStr("name"),
				Offset:       1,
				DefaultValue: nil,
				FieldType:    *types.NewFieldType(mysql.TypeVarchar),
			},
		},
	}

	pln := &UnionPlan{
		Srcs: []plan.Plan{
			tblPlan,
			tblPlan2,
		},
		Distincts: []bool{true},
		RFields: []*field.ResultField{
			field.ColToResultField(cols[0], "t"),
			field.ColToResultField(cols[1], "t"),
		},
	}

	cnt := 0
	pln.Do(nil, func(id interface{}, data []interface{}) (bool, error) {
		cnt++
		return true, nil
	})
	c.Assert(cnt, Equals, 6)
}
开发者ID:npk，项目名称:tidb，代码行数:43，代码来源:union_test.go

示例3: Plan

// Plan gets InfoSchemaPlan/TableDefaultPlan.
func (r *TableRset) Plan(ctx context.Context) (plan.Plan, error) {
	if strings.EqualFold(r.Schema, infoschema.Name) {
		return plans.NewInfoSchemaPlan(r.Name)
	}
	is := sessionctx.GetDomain(ctx).InfoSchema()
	t, err := is.TableByName(model.NewCIStr(r.Schema), model.NewCIStr(r.Name))
	if err != nil {
		return nil, errors.Trace(err)
	}
	tdp := &plans.TableDefaultPlan{T: t}
	tdp.Fields = make([]*field.ResultField, 0, len(t.Cols()))
	for _, col := range t.Cols() {
		f := field.ColToResultField(col, t.TableName().O)
		f.DBName = r.Schema
		tdp.Fields = append(tdp.Fields, f)
	}
	return tdp, nil
}
开发者ID:ninefive，项目名称:tidb，代码行数:19，代码来源:from.go

示例4: TestTableDefaultPlan

func (p *testFromSuit) TestTableDefaultPlan(c *C) {
	pln := &plans.TableDefaultPlan{
		T: p.tbl,
		Fields: []*field.ResultField{
			field.ColToResultField(p.cols[0], "t"),
			field.ColToResultField(p.cols[1], "t"),
		},
	}

	ret := map[int64]string{}
	pln.Do(p, func(id interface{}, data []interface{}) (bool, error) {
		ret[data[0].(int64)] = data[1].(string)
		return true, nil
	})
	excepted := map[int64]string{}
	for i := 0; i < 10; i++ {
		excepted[int64(i*10)] = "hello"
	}
	c.Assert(reflect.DeepEqual(ret, excepted), Equals, true)

	// expr: id > 0
	expr := &expressions.BinaryOperation{
		Op: opcode.GE,
		L: &expressions.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: &expressions.Value{
			Val: 5,
		},
	}
	_, filtered, err := pln.FilterForUpdateAndDelete(p, expr)
	c.Assert(err, IsNil)
	c.Assert(filtered, IsFalse)
	// with no index

	idxCol := &column.IndexedCol{
		IndexInfo: model.IndexInfo{
			Name:  model.NewCIStr("id"),
			Table: model.NewCIStr("t"),
			Columns: []*model.IndexColumn{
				{
					Name:   model.NewCIStr("id"),
					Offset: 0,
					Length: 0,
				},
			},
			Unique:  false,
			Primary: false,
		},
		X: kv.NewKVIndex("i", "id", false),
	}
	p.tbl.AddIndex(idxCol)

	expr4 := &expressions.Ident{
		CIStr: model.NewCIStr("id"),
	}
	_, filtered, err = pln.FilterForUpdateAndDelete(p, expr4)
	c.Assert(err, IsNil)
	// with no index
	c.Assert(filtered, IsTrue)

	expr5 := &expressions.IsNull{
		Expr: &expressions.Ident{
			CIStr: model.NewCIStr("id"),
		},
		Not: true,
	}
	_, filtered, err = pln.FilterForUpdateAndDelete(p, expr5)
	c.Assert(err, IsNil)
	// with no index
	c.Assert(filtered, IsTrue)
}
开发者ID:rose1988c，项目名称:tidb，代码行数:72，代码来源:from_test.go

示例5: TestIndexPlan

func (p *testIndexSuit) TestIndexPlan(c *C) {
	pln := &plans.TableDefaultPlan{
		T: p.tbl,
		Fields: []*field.ResultField{
			field.ColToResultField(p.tbl.Cols()[0], "t"),
			field.ColToResultField(p.tbl.Cols()[1], "t"),
		},
	}

	// expr: id > 0
	expr := &expression.BinaryOperation{
		Op: opcode.GE,
		L: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: expression.Value{
			Val: 50,
		},
	}

	expr2 := &expression.BinaryOperation{
		Op: opcode.LT,
		L: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: expression.Value{
			Val: 100,
		},
	}

	expr3 := &expression.BinaryOperation{
		Op: opcode.LE,
		L: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: expression.Value{
			Val: 100,
		},
	}

	expr4 := &expression.BinaryOperation{
		Op: opcode.GE,
		L: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: expression.Value{
			Val: 60,
		},
	}

	expr5 := &expression.Ident{
		CIStr: model.NewCIStr("id"),
	}

	np, _, err := pln.Filter(p.ctx, expr)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)
	np, _, err = np.Filter(p.ctx, expr2)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)
	np, _, err = np.Filter(p.ctx, expr3)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)
	np, _, err = np.Filter(p.ctx, expr4)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)
	np, _, err = np.Filter(p.ctx, expr5)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)

	ret := map[int64][]byte{}
	rset := rsets.Recordset{
		Plan: np,
		Ctx:  p.ctx,
	}
	rset.Do(func(data []interface{}) (bool, error) {
		ret[data[0].(int64)] = data[1].([]byte)
		return true, nil
	})
	excepted := map[int64][]byte{}
	for i := 6; i < 10; i++ {
		excepted[int64(i*10)] = []byte("hello")
	}

	expr6 := &expression.UnaryOperation{
		Op: '!',
		V: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
	}
	np, _, err = np.Filter(p.ctx, expr6)
	c.Assert(err, IsNil)
	c.Assert(np, NotNil)
	c.Assert(ret, DeepEquals, excepted)
}
开发者ID:lovedboy，项目名称:tidb，代码行数:95，代码来源:index_test.go

示例6: TestFinalPlan

func (t *testFinalPlan) TestFinalPlan(c *C) {
	col1 := &column.Col{
		ColumnInfo: model.ColumnInfo{
			ID:           0,
			Name:         model.NewCIStr("id"),
			Offset:       0,
			DefaultValue: 0,
		},
	}

	col2 := &column.Col{
		ColumnInfo: model.ColumnInfo{
			ID:           1,
			Name:         model.NewCIStr("name"),
			Offset:       1,
			DefaultValue: nil,
		},
	}

	col3 := &column.Col{
		ColumnInfo: model.ColumnInfo{
			ID:           2,
			Name:         model.NewCIStr("ok"),
			Offset:       2,
			DefaultValue: false,
		},
	}

	tblPlan := &testTablePlan{finalTestData, []string{"id", "name", "ok"}, 0}

	p := &plans.SelectFinalPlan{
		SelectList: &plans.SelectList{
			HiddenFieldOffset: len(tblPlan.GetFields()),
			ResultFields: []*field.ResultField{
				field.ColToResultField(col1, "t"),
				field.ColToResultField(col2, "t"),
				field.ColToResultField(col3, "t"),
			},
		},
		Src: tblPlan,
	}

	for _, rf := range p.ResultFields {
		c.Assert(rf.Col.Flag, Equals, uint(0))
		c.Assert(rf.Col.Tp, Equals, byte(0))
		c.Assert(rf.Col.Charset, Equals, "")
	}

	p.Do(nil, func(id interface{}, in []interface{}) (bool, error) {
		return true, nil
	})

	for _, rf := range p.ResultFields {
		if rf.Name == "id" {
			c.Assert(rf.Col.Tp, Equals, mysql.TypeLonglong)
			c.Assert(rf.Col.Charset, Equals, charset.CharsetBin)
		}
		if rf.Name == "name" {
			c.Assert(rf.Col.Tp, Equals, mysql.TypeVarchar)
		}
		// TODO add more type tests
	}
}
开发者ID:superwood，项目名称:tidb，代码行数:63，代码来源:final_test.go

示例7: TestTableDefaultPlan

func (p *testFromSuit) TestTableDefaultPlan(c *C) {
	pln := &plans.TableDefaultPlan{
		T: p.tbl,
		Fields: []*field.ResultField{
			field.ColToResultField(p.tbl.Cols()[0], "t"),
			field.ColToResultField(p.tbl.Cols()[1], "t"),
		},
	}

	ret := map[int64][]byte{}
	rset := rsets.Recordset{Ctx: p, Plan: pln}
	rset.Do(func(data []interface{}) (bool, error) {
		ret[data[0].(int64)] = data[1].([]byte)
		return true, nil
	})
	excepted := map[int64][]byte{}
	for i := 0; i < 10; i++ {
		excepted[int64(i*10)] = []byte("hello")
	}
	//c.Assert(reflect.DeepEqual(ret, excepted), Equals, true)
	c.Assert(ret, DeepEquals, excepted)

	// expr: id > 0
	expr := &expression.BinaryOperation{
		Op: opcode.GE,
		L: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		R: &expression.Value{
			Val: 5,
		},
	}
	_, filtered, err := pln.FilterForUpdateAndDelete(p, expr)
	c.Assert(err, IsNil)
	c.Assert(filtered, IsFalse)
	// with no index

	idxCol := &column.IndexedCol{
		IndexInfo: model.IndexInfo{
			Name:  model.NewCIStr("id"),
			Table: model.NewCIStr("t"),
			Columns: []*model.IndexColumn{
				{
					Name:   model.NewCIStr("id"),
					Offset: 0,
					Length: 0,
				},
			},
			Unique:  false,
			Primary: false,
			State:   model.StatePublic,
		},
	}

	idxCol.X = kv.NewKVIndex([]byte("i"), "id", 0, false)

	p.tbl.AddIndex(idxCol)

	expr4 := &expression.Ident{
		CIStr: model.NewCIStr("id"),
	}
	_, filtered, err = pln.FilterForUpdateAndDelete(p, expr4)
	c.Assert(err, IsNil)
	// with no index
	c.Assert(filtered, IsTrue)

	expr5 := &expression.IsNull{
		Expr: &expression.Ident{
			CIStr: model.NewCIStr("id"),
		},
		Not: true,
	}
	_, filtered, err = pln.FilterForUpdateAndDelete(p, expr5)
	c.Assert(err, IsNil)
	// with no index
	c.Assert(filtered, IsTrue)
}
开发者ID:lovedboy，项目名称:tidb，代码行数:77，代码来源:from_test.go


注：本文中的github.com/pingcap/tidb/field.ColToResultField函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。