51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package jet
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import (
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"strconv"
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"time"
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)
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type intervalExpression struct {
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expressionInterfaceImpl
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duration time.Duration
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}
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const intervalSep = ":"
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func (c *intervalExpression) serialize(statement statementType, out *queryData, options ...serializeOption) error {
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out.writeString("INTERVAL '")
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duration := c.duration
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if duration < 0 {
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duration = -duration
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out.writeString("-")
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}
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hours := duration / time.Hour
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minutes := (duration % time.Hour) / time.Minute
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sec := (duration % time.Minute) / time.Second
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msec := (duration % time.Second) / time.Microsecond
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out.writeString(strconv.FormatInt(int64(hours), 10))
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out.writeString(intervalSep)
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out.writeString(strconv.FormatInt(int64(minutes), 10))
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out.writeString(intervalSep)
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out.writeString(strconv.FormatInt(int64(sec), 10))
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out.writeString(intervalSep)
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out.writeString(strconv.FormatInt(int64(msec), 10))
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out.writeString("' HOUR_MICROSECOND")
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return nil
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}
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//// Interval returns a representation of duration
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//func Interval(duration time.Duration) expressions {
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// intervalExp := &intervalExpression{
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// duration: duration,
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// }
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//
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// intervalExp.expressionInterfaceImpl.parent = intervalExp
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//
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// return intervalExp
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//}
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