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Golang encoding.DecodeTimeAscending函数代码示例

本文整理汇总了Golang中github.com/cockroachdb/cockroach/util/encoding.DecodeTimeAscending函数的典型用法代码示例。如果您正苦于以下问题：Golang DecodeTimeAscending函数的具体用法？Golang DecodeTimeAscending怎么用？Golang DecodeTimeAscending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DecodeTimeAscending函数的5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: GetTime

// GetTime decodes a time value from the bytes field of the receiver. If the
// tag is not TIME an error will be returned.
func (v Value) GetTime() (time.Time, error) {
	if tag := v.GetTag(); tag != ValueType_TIME {
		return time.Time{}, fmt.Errorf("value type is not %s: %s", ValueType_TIME, tag)
	}
	_, t, err := encoding.DecodeTimeAscending(v.dataBytes())
	return t, err
}
开发者ID:GitGoldie，项目名称:cockroach，代码行数:9，代码来源:data.go

示例2: decodeKeyPrint

func decodeKeyPrint(key roachpb.Key) string {
	var buf bytes.Buffer
	for k := 0; len(key) > 0; k++ {
		var err error
		switch encoding.PeekType(key) {
		case encoding.Null:
			key, _ = encoding.DecodeIfNull(key)
			fmt.Fprintf(&buf, "/NULL")
		case encoding.NotNull:
			key, _ = encoding.DecodeIfNotNull(key)
			fmt.Fprintf(&buf, "/#")
		case encoding.Int:
			var i int64
			key, i, err = encoding.DecodeVarintAscending(key)
			if err == nil {
				fmt.Fprintf(&buf, "/%d", i)
			}
		case encoding.Float:
			var f float64
			key, f, err = encoding.DecodeFloatAscending(key, nil)
			if err == nil {
				fmt.Fprintf(&buf, "/%f", f)
			}
		case encoding.Bytes:
			var s string
			key, s, err = encoding.DecodeStringAscending(key, nil)
			if err == nil {
				fmt.Fprintf(&buf, "/%q", s)
			}
		case encoding.BytesDesc:
			var s string
			key, s, err = encoding.DecodeStringDescending(key, nil)
			if err == nil {
				fmt.Fprintf(&buf, "/%q", s)
			}
		case encoding.Time:
			var t time.Time
			key, t, err = encoding.DecodeTimeAscending(key)
			if err == nil {
				fmt.Fprintf(&buf, "/%s", t.UTC().Format(time.UnixDate))
			}
		case encoding.TimeDesc:
			var t time.Time
			key, t, err = encoding.DecodeTimeDescending(key)
			if err == nil {
				fmt.Fprintf(&buf, "/%s", t.UTC().Format(time.UnixDate))
			}
		default:
			// This shouldn't ever happen, but if it does let the loop exit.
			fmt.Fprintf(&buf, "/%q", []byte(key))
			key = nil
		}

		if err != nil {
			fmt.Fprintf(&buf, "/<%v>", err)
			continue
		}
	}
	return buf.String()
}
开发者ID:billhongs，项目名称:cockroach，代码行数:60，代码来源:printer.go

示例3: DecodeTimeValue

// DecodeTimeValue decodes a value encoded by EncodeTimeValue.
func DecodeTimeValue(b []byte) ([]byte, time.Time, error) {
	if len(b) == 0 {
		return nil, time.Time{}, fmt.Errorf("array is empty")
	}
	if tag := ValueType(b[0]); tag != ValueType_TIME {
		return nil, time.Time{}, fmt.Errorf("value type is not %s: %s", ValueType_TIME, tag)
	}
	b = b[1:]
	return encoding.DecodeTimeAscending(b)
}
开发者ID:JKhawaja，项目名称:cockroach，代码行数:11，代码来源:data.go

示例4: DecodeTableKey

// DecodeTableKey decodes a table key/value.
func DecodeTableKey(
	a *DatumAlloc, valType parser.Datum, key []byte, dir encoding.Direction,
) (parser.Datum, []byte, error) {
	if (dir != encoding.Ascending) && (dir != encoding.Descending) {
		return nil, nil, util.Errorf("invalid direction: %d", dir)
	}
	var isNull bool
	if key, isNull = encoding.DecodeIfNull(key); isNull {
		return parser.DNull, key, nil
	}
	var rkey []byte
	var err error
	switch valType.(type) {
	case *parser.DBool:
		var i int64
		if dir == encoding.Ascending {
			rkey, i, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, i, err = encoding.DecodeVarintDescending(key)
		}
		// No need to chunk allocate DBool as MakeDBool returns either
		// parser.DBoolTrue or parser.DBoolFalse.
		return parser.MakeDBool(parser.DBool(i != 0)), rkey, err
	case *parser.DInt:
		var i int64
		if dir == encoding.Ascending {
			rkey, i, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, i, err = encoding.DecodeVarintDescending(key)
		}
		return a.NewDInt(parser.DInt(i)), rkey, err
	case *parser.DFloat:
		var f float64
		if dir == encoding.Ascending {
			rkey, f, err = encoding.DecodeFloatAscending(key)
		} else {
			rkey, f, err = encoding.DecodeFloatDescending(key)
		}
		return a.NewDFloat(parser.DFloat(f)), rkey, err
	case *parser.DDecimal:
		var d *inf.Dec
		if dir == encoding.Ascending {
			rkey, d, err = encoding.DecodeDecimalAscending(key, nil)
		} else {
			rkey, d, err = encoding.DecodeDecimalDescending(key, nil)
		}
		dd := a.NewDDecimal(parser.DDecimal{})
		dd.Set(d)
		return dd, rkey, err
	case *parser.DString:
		var r string
		if dir == encoding.Ascending {
			rkey, r, err = encoding.DecodeUnsafeStringAscending(key, nil)
		} else {
			rkey, r, err = encoding.DecodeUnsafeStringDescending(key, nil)
		}
		return a.NewDString(parser.DString(r)), rkey, err
	case *parser.DBytes:
		var r []byte
		if dir == encoding.Ascending {
			rkey, r, err = encoding.DecodeBytesAscending(key, nil)
		} else {
			rkey, r, err = encoding.DecodeBytesDescending(key, nil)
		}
		return a.NewDBytes(parser.DBytes(r)), rkey, err
	case *parser.DDate:
		var t int64
		if dir == encoding.Ascending {
			rkey, t, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, t, err = encoding.DecodeVarintDescending(key)
		}
		return a.NewDDate(parser.DDate(t)), rkey, err
	case *parser.DTimestamp:
		var t time.Time
		if dir == encoding.Ascending {
			rkey, t, err = encoding.DecodeTimeAscending(key)
		} else {
			rkey, t, err = encoding.DecodeTimeDescending(key)
		}
		return a.NewDTimestamp(parser.DTimestamp{Time: t}), rkey, err
	case *parser.DTimestampTZ:
		var t time.Time
		if dir == encoding.Ascending {
			rkey, t, err = encoding.DecodeTimeAscending(key)
		} else {
			rkey, t, err = encoding.DecodeTimeDescending(key)
		}
		return a.NewDTimestampTZ(parser.DTimestampTZ{Time: t}), rkey, err
	case *parser.DInterval:
		var d duration.Duration
		if dir == encoding.Ascending {
			rkey, d, err = encoding.DecodeDurationAscending(key)
		} else {
			rkey, d, err = encoding.DecodeDurationDescending(key)
		}
		return a.NewDInterval(parser.DInterval{Duration: d}), rkey, err
	default:
		return nil, nil, util.Errorf("TODO(pmattis): decoded index key: %s", valType.Type())
//.........这里部分代码省略.........
开发者ID:GitGoldie，项目名称:cockroach，代码行数:101，代码来源:table.go

示例5: decodeTableKey

func decodeTableKey(valType parser.Datum, key []byte, dir encoding.Direction) (
	parser.Datum, []byte, error) {
	if (dir != encoding.Ascending) && (dir != encoding.Descending) {
		return nil, nil, util.Errorf("invalid direction: %d", dir)
	}
	var isNull bool
	if key, isNull = encoding.DecodeIfNull(key); isNull {
		return parser.DNull, key, nil
	}
	var rkey []byte
	var err error
	switch valType.(type) {
	case parser.DBool:
		var i int64
		if dir == encoding.Ascending {
			rkey, i, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, i, err = encoding.DecodeVarintDescending(key)
		}
		return parser.DBool(i != 0), rkey, err
	case parser.DInt:
		var i int64
		if dir == encoding.Ascending {
			rkey, i, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, i, err = encoding.DecodeVarintDescending(key)
		}
		return parser.DInt(i), rkey, err
	case parser.DFloat:
		var f float64
		if dir == encoding.Ascending {
			rkey, f, err = encoding.DecodeFloatAscending(key, nil)
		} else {
			rkey, f, err = encoding.DecodeFloatDescending(key, nil)
		}
		return parser.DFloat(f), rkey, err
	case *parser.DDecimal:
		var d *inf.Dec
		if dir == encoding.Ascending {
			rkey, d, err = encoding.DecodeDecimalAscending(key, nil)
		} else {
			rkey, d, err = encoding.DecodeDecimalDescending(key, nil)
		}
		dd := &parser.DDecimal{}
		dd.Set(d)
		return dd, rkey, err
	case parser.DString:
		var r string
		if dir == encoding.Ascending {
			rkey, r, err = encoding.DecodeStringAscending(key, nil)
		} else {
			rkey, r, err = encoding.DecodeStringDescending(key, nil)
		}
		return parser.DString(r), rkey, err
	case parser.DBytes:
		var r []byte
		if dir == encoding.Ascending {
			rkey, r, err = encoding.DecodeBytesAscending(key, nil)
		} else {
			rkey, r, err = encoding.DecodeBytesDescending(key, nil)
		}
		return parser.DBytes(r), rkey, err
	case parser.DDate:
		var t int64
		if dir == encoding.Ascending {
			rkey, t, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, t, err = encoding.DecodeVarintDescending(key)
		}
		return parser.DDate(t), rkey, err
	case parser.DTimestamp:
		var t time.Time
		if dir == encoding.Ascending {
			rkey, t, err = encoding.DecodeTimeAscending(key)
		} else {
			rkey, t, err = encoding.DecodeTimeDescending(key)
		}
		return parser.DTimestamp{Time: t}, rkey, err
	case parser.DInterval:
		var d int64
		if dir == encoding.Ascending {
			rkey, d, err = encoding.DecodeVarintAscending(key)
		} else {
			rkey, d, err = encoding.DecodeVarintDescending(key)
		}
		return parser.DInterval{Duration: time.Duration(d)}, rkey, err
	default:
		return nil, nil, util.Errorf("TODO(pmattis): decoded index key: %s", valType.Type())
	}
}
开发者ID:thebrandonstore，项目名称:cockroach，代码行数:90，代码来源:table.go


注：本文中的github.com/cockroachdb/cockroach/util/encoding.DecodeTimeAscending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。