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timestamp.go
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timestamp.go
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package value
import (
"time"
"github.com/deepfabric/vectorsql/pkg/vm/types"
)
func NewTimestamp(v time.Time) *Timestamp {
r := Timestamp(v.Unix())
return &r
}
func (a *Timestamp) String() string {
return time.Unix(int64(*a), 0).UTC().Format(TimestampOutputFormat)
}
func (_ *Timestamp) ResolvedType() types.T {
return types.T_timestamp
}
// ParseTimestamp parses and returns the *Timestamp value represented by
// the provided string in UTC, or an error if parsing is unsuccessful.
func ParseTimestamp(s string) (*Timestamp, error) {
t, err := time.Parse(TimestampOutputFormat, s)
if err != nil {
return nil, err
}
return NewTimestamp(t), nil
}
func (a *Timestamp) Compare(v Value) int {
var x, y int64
x = int64(*a)
switch b := v.(type) {
case *Timestamp:
y = int64(*b)
default:
panic(makeUnsupportedComparisonMessage(a, v))
}
switch {
case x < y:
return -1
case x > y:
return 1
default:
return 0
}
}
func (_ *Timestamp) Size() int { return 9 }
func (_ *Timestamp) IsLogical() bool { return false }
func (_ *Timestamp) IsAndOnly() bool { return true }
func (_ *Timestamp) Attributes() []string { return []string{} }