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描述文字

Golang types.MakeDatums函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/pingcap/tidb/util/types.MakeDatums函数的典型用法代码示例。如果您正苦于以下问题：Golang MakeDatums函数的具体用法？Golang MakeDatums怎么用？Golang MakeDatums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MakeDatums函数的20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，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: checkDropDeleteOnly

func (s *testIndexChangeSuite) checkDropDeleteOnly(d *ddl, ctx context.Context, writeTbl, delTbl table.Table) error {
	// WriteOnlyTable insert t values (9, 9)
	_, err := writeTbl.AddRecord(ctx, types.MakeDatums(9, 9))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, writeTbl, 9, 9, true)
	// DeleteOnlyTable insert t values (10, 10)
	_, err = delTbl.AddRecord(ctx, types.MakeDatums(10, 10))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, writeTbl, 10, 10, false)
	if err != nil {
		return errors.Trace(err)
	}
	// DeleteOnlyTable update t set c2 = 10 where c1 = 9
	err = delTbl.UpdateRecord(ctx, 9, types.MakeDatums(9, 9), types.MakeDatums(9, 10), touchedMap(delTbl))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, writeTbl, 9, 9, false)
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, writeTbl, 10, 9, false)
	if err != nil {
		return errors.Trace(err)
	}
	return nil
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:31，代码来源:index_change_test.go


示例2: fetchShowIndex

func (e *ShowExec) fetchShowIndex() error {
	tb, err := e.getTable()
	if err != nil {
		return errors.Trace(err)
	}
	if tb.Meta().PKIsHandle {
		var pkCol *table.Column
		for _, col := range tb.Cols() {
			if mysql.HasPriKeyFlag(col.Flag) {
				pkCol = col
				break
			}
		}
		data := types.MakeDatums(
			tb.Meta().Name.O, // Table
			0,                // Non_unique
			"PRIMARY",        // Key_name
			1,                // Seq_in_index
			pkCol.Name.O,     // Column_name
			"utf8_bin",       // Colation
			0,                // Cardinality
			nil,              // Sub_part
			nil,              // Packed
			"",               // Null
			"BTREE",          // Index_type
			"",               // Comment
			"",               // Index_comment
		)
		e.rows = append(e.rows, &Row{Data: data})
	}
	for _, idx := range tb.Indices() {
		for i, col := range idx.Meta().Columns {
			nonUniq := 1
			if idx.Meta().Unique {
				nonUniq = 0
			}
			var subPart interface{}
			if col.Length != types.UnspecifiedLength {
				subPart = col.Length
			}
			data := types.MakeDatums(
				tb.Meta().Name.O,  // Table
				nonUniq,           // Non_unique
				idx.Meta().Name.O, // Key_name
				i+1,               // Seq_in_index
				col.Name.O,        // Column_name
				"utf8_bin",        // Colation
				0,                 // Cardinality
				subPart,           // Sub_part
				nil,               // Packed
				"YES",             // Null
				idx.Meta().Tp.String(), // Index_type
				"",                 // Comment
				idx.Meta().Comment, // Index_comment
			)
			e.rows = append(e.rows, &Row{Data: data})
		}
	}
	return nil
}
开发者ID:jmptrader，项目名称:tidb，代码行数:60，代码来源:show.go


示例3: TestUniqueIndexMultipleNullEntries

func (ts *testSuite) TestUniqueIndexMultipleNullEntries(c *C) {
	_, err := ts.se.Execute("CREATE TABLE test.t (a int primary key auto_increment, b varchar(255) unique)")
	c.Assert(err, IsNil)
	ctx := ts.se.(context.Context)
	dom := sessionctx.GetDomain(ctx)
	tb, err := dom.InfoSchema().TableByName(model.NewCIStr("test"), model.NewCIStr("t"))
	c.Assert(err, IsNil)
	c.Assert(tb.Meta().ID, Greater, int64(0))
	c.Assert(tb.Meta().Name.L, Equals, "t")
	c.Assert(tb.Meta(), NotNil)
	c.Assert(tb.Indices(), NotNil)
	c.Assert(string(tb.FirstKey()), Not(Equals), "")
	c.Assert(string(tb.IndexPrefix()), Not(Equals), "")
	c.Assert(string(tb.RecordPrefix()), Not(Equals), "")
	c.Assert(tables.FindIndexByColName(tb, "b"), NotNil)

	autoid, err := tb.AllocAutoID()
	c.Assert(err, IsNil)
	c.Assert(autoid, Greater, int64(0))

	_, err = tb.AddRecord(ctx, types.MakeDatums(1, nil))
	c.Assert(err, IsNil)
	_, err = tb.AddRecord(ctx, types.MakeDatums(2, nil))
	c.Assert(err, IsNil)
	_, err = ts.se.Execute("drop table test.t")
	c.Assert(err, IsNil)
}
开发者ID:xxwwbb3，项目名称:tidb，代码行数:27，代码来源:tables_test.go


示例4: checkAddPublic

func (s *testColumnChangeSuite) checkAddPublic(d *ddl, ctx context.Context, writeOnlyTable, publicTable table.Table) error {
	// publicTable Insert t values (4, 4, 4)
	h, err := publicTable.AddRecord(ctx, types.MakeDatums(4, 4, 4))
	if err != nil {
		return errors.Trace(err)
	}
	err = ctx.CommitTxn()
	if err != nil {
		return errors.Trace(err)
	}
	// writeOnlyTable update t set c1 = 3 where c1 = 4
	oldRow, err := writeOnlyTable.RowWithCols(ctx, h, writeOnlyTable.WritableCols())
	if err != nil {
		return errors.Trace(err)
	}
	if len(oldRow) != 3 {
		return errors.Errorf("%v", oldRow)
	}
	newRow := types.MakeDatums(3, 4, oldRow[2].GetValue())
	err = writeOnlyTable.UpdateRecord(ctx, h, oldRow, newRow, touchedMap(writeOnlyTable))
	if err != nil {
		return errors.Trace(err)
	}
	err = ctx.CommitTxn()
	if err != nil {
		return errors.Trace(err)
	}
	// publicTable select * from t, make sure the new c3 value 4 is not overwritten to default value 3.
	err = checkResult(ctx, publicTable, testutil.RowsWithSep(" ", "2 3 3", "3 4 4"))
	if err != nil {
		return errors.Trace(err)
	}
	return nil
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:34，代码来源:column_change_test.go


示例5: TestCombineIndexSeek

func (s *testIndexSuite) TestCombineIndexSeek(c *C) {
	defer testleak.AfterTest(c)()
	tblInfo := &model.TableInfo{
		ID: 1,
		Indices: []*model.IndexInfo{
			{
				ID:   2,
				Name: model.NewCIStr("test"),
				Columns: []*model.IndexColumn{
					{},
					{},
				},
			},
		},
	}
	index := tables.NewIndex(tblInfo, tblInfo.Indices[0])

	txn, err := s.s.Begin()
	c.Assert(err, IsNil)

	values := types.MakeDatums("abc", "def")
	_, err = index.Create(txn, values, 1)
	c.Assert(err, IsNil)

	index2 := tables.NewIndex(tblInfo, tblInfo.Indices[0])
	iter, hit, err := index2.Seek(txn, types.MakeDatums("abc", nil))
	c.Assert(err, IsNil)
	defer iter.Close()
	c.Assert(hit, IsFalse)
	_, h, err := iter.Next()
	c.Assert(err, IsNil)
	c.Assert(h, Equals, int64(1))
}
开发者ID:pingcap，项目名称:tidb，代码行数:33，代码来源:index_test.go


示例6: TestCurrentTime

func (s *testEvaluatorSuite) TestCurrentTime(c *C) {
	defer testleak.AfterTest(c)()
	tfStr := "15:04:05"

	last := time.Now()
	v, err := builtinCurrentTime(types.MakeDatums(nil), nil)
	c.Assert(err, IsNil)
	n := v.GetMysqlDuration()
	c.Assert(n.String(), HasLen, 8)
	c.Assert(n.String(), GreaterEqual, last.Format(tfStr))

	v, err = builtinCurrentTime(types.MakeDatums(3), nil)
	c.Assert(err, IsNil)
	n = v.GetMysqlDuration()
	c.Assert(n.String(), HasLen, 12)
	c.Assert(n.String(), GreaterEqual, last.Format(tfStr))

	v, err = builtinCurrentTime(types.MakeDatums(6), nil)
	c.Assert(err, IsNil)
	n = v.GetMysqlDuration()
	c.Assert(n.String(), HasLen, 15)
	c.Assert(n.String(), GreaterEqual, last.Format(tfStr))

	v, err = builtinCurrentTime(types.MakeDatums(-1), nil)
	c.Assert(err, NotNil)

	v, err = builtinCurrentTime(types.MakeDatums(7), nil)
	c.Assert(err, NotNil)
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:29，代码来源:builtin_time_test.go


示例7: TestRepeat

func (s *testEvaluatorSuite) TestRepeat(c *C) {
	defer testleak.AfterTest(c)()
	args := []interface{}{"a", int64(2)}
	v, err := builtinRepeat(types.MakeDatums(args...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "aa")

	args = []interface{}{"a", uint64(2)}
	v, err = builtinRepeat(types.MakeDatums(args...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "aa")

	args = []interface{}{"a", int64(-1)}
	v, err = builtinRepeat(types.MakeDatums(args...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "")

	args = []interface{}{"a", int64(0)}
	v, err = builtinRepeat(types.MakeDatums(args...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "")

	args = []interface{}{"a", uint64(0)}
	v, err = builtinRepeat(types.MakeDatums(args...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "")
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:27，代码来源:builtin_string_test.go


示例8: TestLeft

func (s *testEvaluatorSuite) TestLeft(c *C) {
	defer testleak.AfterTest(c)()
	args := types.MakeDatums([]interface{}{"abcdefg", int64(2)}...)
	v, err := builtinLeft(args, nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "ab")

	args = types.MakeDatums([]interface{}{"abcdefg", int64(-1)}...)
	v, err = builtinLeft(args, nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "")

	args = types.MakeDatums([]interface{}{"abcdefg", int64(100)}...)
	v, err = builtinLeft(args, nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetString(), Equals, "abcdefg")

	args = types.MakeDatums([]interface{}{1, int64(1)}...)
	_, err = builtinLeft(args, nil)
	c.Assert(err, IsNil)

	args = types.MakeDatums([]interface{}{"abcdefg", "xxx"}...)
	_, err = builtinLeft(args, nil)
	c.Assert(err, NotNil)
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:25，代码来源:builtin_string_test.go


示例9: checkDropWriteOnly

func (s *testIndexChangeSuite) checkDropWriteOnly(d *ddl, ctx context.Context, publicTbl, writeTbl table.Table) error {
	// WriteOnlyTable insert t values (8, 8)
	_, err := writeTbl.AddRecord(ctx, types.MakeDatums(8, 8))
	if err != nil {
		return errors.Trace(err)
	}

	err = checkIndexExists(ctx, publicTbl, 8, 8, true)
	if err != nil {
		return errors.Trace(err)
	}

	// WriteOnlyTable update t set c2 = 7 where c1 = 8 and c2 = 8
	err = writeTbl.UpdateRecord(ctx, 8, types.MakeDatums(8, 8), types.MakeDatums(8, 7), touchedMap(writeTbl))
	if err != nil {
		return errors.Trace(err)
	}

	err = checkIndexExists(ctx, publicTbl, 7, 8, true)
	if err != nil {
		return errors.Trace(err)
	}

	// WriteOnlyTable delete t where c1 = 8
	err = writeTbl.RemoveRecord(ctx, 8, types.MakeDatums(8, 7))
	if err != nil {
		return errors.Trace(err)
	}

	err = checkIndexExists(ctx, publicTbl, 7, 8, false)
	if err != nil {
		return errors.Trace(err)
	}
	return nil
}
开发者ID:jmptrader，项目名称:tidb，代码行数:35，代码来源:index_change_test.go


示例10: TestLowerAndUpper

func (s *testEvaluatorSuite) TestLowerAndUpper(c *C) {
	defer testleak.AfterTest(c)()
	d, err := builtinLower(types.MakeDatums([]interface{}{nil}...), nil)
	c.Assert(err, IsNil)
	c.Assert(d.Kind(), Equals, types.KindNull)

	d, err = builtinUpper(types.MakeDatums([]interface{}{nil}...), nil)
	c.Assert(err, IsNil)
	c.Assert(d.Kind(), Equals, types.KindNull)

	tbl := []struct {
		Input  interface{}
		Expect string
	}{
		{"abc", "abc"},
		{1, "1"},
	}

	dtbl := tblToDtbl(tbl)

	for _, t := range dtbl {
		d, err = builtinLower(t["Input"], nil)
		c.Assert(err, IsNil)
		c.Assert(d, testutil.DatumEquals, t["Expect"][0])

		d, err = builtinUpper(t["Input"], nil)
		c.Assert(err, IsNil)
		c.Assert(d.GetString(), Equals, strings.ToUpper(t["Expect"][0].GetString()))
	}
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:30，代码来源:builtin_string_test.go


示例11: TestASCII

func (s *testEvaluatorSuite) TestASCII(c *C) {
	defer testleak.AfterTest(c)()
	v, err := builtinASCII(types.MakeDatums([]interface{}{nil}...), nil)
	c.Assert(err, IsNil)
	c.Assert(v.Kind(), Equals, types.KindNull)

	for _, t := range []struct {
		Input    interface{}
		Expected int64
	}{
		{"", 0},
		{"A", 65},
		{"你好", 228},
		{1, 49},
		{1.2, 49},
		{true, 49},
		{false, 48},
	} {
		v, err = builtinASCII(types.MakeDatums(t.Input), nil)
		c.Assert(err, IsNil)
		c.Assert(v.GetInt64(), Equals, t.Expected)
	}

	v, err = builtinASCII(types.MakeDatums([]interface{}{errors.New("must error")}...), nil)
	c.Assert(err, NotNil)
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:26，代码来源:builtin_string_test.go


示例12: TestTable

func (s *testTableSuite) TestTable(c *C) {
	d := s.d

	ctx := testNewContext(c, d)
	defer ctx.FinishTxn(true)

	tblInfo := testTableInfo(c, d, "t", 3)

	job := testCreateTable(c, ctx, d, s.dbInfo, tblInfo)
	testCheckTableState(c, d, s.dbInfo, tblInfo, model.StatePublic)
	testCheckJobDone(c, d, job, true)

	newTblInfo := testTableInfo(c, d, "t", 3)
	job = &model.Job{
		SchemaID: s.dbInfo.ID,
		TableID:  newTblInfo.ID,
		Type:     model.ActionCreateTable,
		Args:     []interface{}{newTblInfo},
	}

	err := d.startDDLJob(ctx, job)
	c.Assert(err, NotNil)
	testCheckJobCancelled(c, d, job)

	tbl := testGetTable(c, d, s.dbInfo.ID, tblInfo.ID)

	_, err = tbl.AddRecord(ctx, types.MakeDatums(1, 1, 1))
	c.Assert(err, IsNil)

	_, err = tbl.AddRecord(ctx, types.MakeDatums(2, 2, 2))
	c.Assert(err, IsNil)

	job = testDropTable(c, ctx, d, s.dbInfo, tblInfo)
	testCheckJobDone(c, d, job, false)
}
开发者ID:astaxie，项目名称:tidb，代码行数:35，代码来源:table_test.go


示例13: checkAddPublic

func (s *testIndexChangeSuite) checkAddPublic(d *ddl, ctx context.Context, writeTbl, publicTbl table.Table) error {
	// WriteOnlyTable: insert t values (6, 6)
	_, err := writeTbl.AddRecord(ctx, types.MakeDatums(6, 6))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, publicTbl, 6, 6, true)
	if err != nil {
		return errors.Trace(err)
	}
	// PublicTable: insert t values (7, 7)
	_, err = publicTbl.AddRecord(ctx, types.MakeDatums(7, 7))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, publicTbl, 7, 7, true)
	if err != nil {
		return errors.Trace(err)
	}

	// WriteOnlyTable: update t set c2 = 5 where c1 = 7 and c2 = 7
	err = writeTbl.UpdateRecord(ctx, 7, types.MakeDatums(7, 7), types.MakeDatums(7, 5), touchedMap(writeTbl))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, publicTbl, 5, 7, true)
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, publicTbl, 7, 7, false)
	if err != nil {
		return errors.Trace(err)
	}
	// WriteOnlyTable: delete t where c1 = 6
	err = writeTbl.RemoveRecord(ctx, 6, types.MakeDatums(6, 6))
	if err != nil {
		return errors.Trace(err)
	}
	err = checkIndexExists(ctx, publicTbl, 6, 6, false)

	var rows [][]types.Datum
	publicTbl.IterRecords(ctx, publicTbl.FirstKey(), publicTbl.Cols(),
		func(h int64, data []types.Datum, cols []*table.Column) (bool, error) {
			rows = append(rows, data)
			return true, nil
		})
	if len(rows) == 0 {
		return errors.New("table is empty")
	}
	for _, row := range rows {
		idxVal := row[1].GetInt64()
		handle := row[0].GetInt64()
		err = checkIndexExists(ctx, publicTbl, idxVal, handle, true)
		if err != nil {
			return errors.Trace(err)
		}
	}
	return nil
}
开发者ID:XuHuaiyu，项目名称:tidb，代码行数:59，代码来源:index_change_test.go


示例14: dataForColltions

func dataForColltions() (records [][]types.Datum) {
	records = append(records,
		types.MakeDatums("ascii_general_ci", "ascii", 1, "Yes", "Yes", 1),
		types.MakeDatums("binary", "binary", 2, "Yes", "Yes", 1),
		types.MakeDatums("latin1_swedish_ci", "latin1", 3, "Yes", "Yes", 1),
		types.MakeDatums("utf8_general_ci", "utf8", 4, "Yes", "Yes", 1),
		types.MakeDatums("utf8mb4_general_ci", "utf8mb4", 5, "Yes", "Yes", 1),
	)
	return records
}
开发者ID:anywhy，项目名称:tidb，代码行数:10，代码来源:tables.go


示例15: TestCheck

func (s *testColumnSuite) TestCheck(c *C) {
	col := newCol("a")
	col.Flag = mysql.AutoIncrementFlag
	cols := []*Col{col, col}
	CheckOnce(cols)
	cols = cols[:1]
	CheckNotNull(cols, types.MakeDatums(nil))
	cols[0].Flag |= mysql.NotNullFlag
	CheckNotNull(cols, types.MakeDatums(nil))
}
开发者ID:astaxie，项目名称:tidb，代码行数:10，代码来源:column_test.go


示例16: dataForCharacterSets

func dataForCharacterSets() (records [][]types.Datum) {
	records = append(records,
		types.MakeDatums("ascii", "ascii_general_ci", "US ASCII", 1),
		types.MakeDatums("binary", "binary", "Binary pseudo charset", 1),
		types.MakeDatums("latin1", "latin1_swedish_ci", "cp1252 West European", 1),
		types.MakeDatums("utf8", "utf8_general_ci", "UTF-8 Unicode", 3),
		types.MakeDatums("utf8mb4", "utf8mb4_general_ci", "UTF-8 Unicode", 4),
	)
	return records
}
开发者ID:anywhy，项目名称:tidb，代码行数:10，代码来源:tables.go


示例17: TestDatabase

func (s *testEvaluatorSuite) TestDatabase(c *C) {
	ctx := mock.NewContext()
	d, err := builtinDatabase(types.MakeDatums(), ctx)
	c.Assert(err, IsNil)
	c.Assert(d.Kind(), Equals, types.KindNull)

	db.BindCurrentSchema(ctx, "test")
	d, err = builtinDatabase(types.MakeDatums(), ctx)
	c.Assert(err, IsNil)
	c.Assert(d.GetString(), Equals, "test")
}
开发者ID:astaxie，项目名称:tidb，代码行数:11，代码来源:builtin_info_test.go


示例18: TestFoundRows

func (s *testEvaluatorSuite) TestFoundRows(c *C) {
	ctx := mock.NewContext()
	d, err := builtinFoundRows(types.MakeDatums(), ctx)
	c.Assert(err, NotNil)

	variable.BindSessionVars(ctx)

	d, err = builtinFoundRows(types.MakeDatums(), ctx)
	c.Assert(err, IsNil)
	c.Assert(d.GetUint64(), Equals, uint64(0))
}
开发者ID:astaxie，项目名称:tidb，代码行数:11，代码来源:builtin_info_test.go


示例19: TestIsNullFunc

func (s *testEvaluatorSuite) TestIsNullFunc(c *C) {
	defer testleak.AfterTest(c)()

	v, err := builtinIsNull(types.MakeDatums(1), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetInt64(), Equals, int64(0))

	v, err = builtinIsNull(types.MakeDatums(nil), nil)
	c.Assert(err, IsNil)
	c.Assert(v.GetInt64(), Equals, int64(1))
}
开发者ID:yubobo，项目名称:tidb，代码行数:11，代码来源:builtin_test.go


示例20: TestCoalesce

func (s *testEvaluatorSuite) TestCoalesce(c *C) {
	args := types.MakeDatums(1, nil)
	v, err := builtinCoalesce(args, nil)
	c.Assert(err, IsNil)
	c.Assert(v, DatumEquals, types.NewDatum(1))

	args = types.MakeDatums(nil, nil)
	v, err = builtinCoalesce(args, nil)
	c.Assert(err, IsNil)
	c.Assert(v, DatumEquals, types.NewDatum(nil))
}
开发者ID:astaxie，项目名称:tidb，代码行数:11，代码来源:builtin_test.go



注：本文中的github.com/pingcap/tidb/util/types.MakeDatums函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，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。

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Golang types.MaxValueDatum函数代码示例发布时间：2022-05-28
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