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Postgres interval with date/time expression arithmetic.

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go-jet 2019-12-01 18:26:01 +01:00
parent d1970b3a55
commit 4a3579e7f9
10 changed files with 313 additions and 76 deletions
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59
postgres/interval_test.go Normal file
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package postgres
import (
"testing"
"time"
)
func TestINTERVAL(t *testing.T) {
assertSerialize(t, INTERVAL(1, YEAR), "INTERVAL '1 YEAR'")
assertSerialize(t, INTERVAL(1, MONTH), "INTERVAL '1 MONTH'")
assertSerialize(t, INTERVAL(1, WEEK), "INTERVAL '1 WEEK'")
assertSerialize(t, INTERVAL(1, DAY), "INTERVAL '1 DAY'")
assertSerialize(t, INTERVAL(1, HOUR), "INTERVAL '1 HOUR'")
assertSerialize(t, INTERVAL(1, MINUTE), "INTERVAL '1 MINUTE'")
assertSerialize(t, INTERVAL(1, SECOND), "INTERVAL '1 SECOND'")
assertSerialize(t, INTERVAL(1, MILLISECOND), "INTERVAL '1 MILLISECOND'")
assertSerialize(t, INTERVAL(1, MICROSECOND), "INTERVAL '1 MICROSECOND'")
assertSerialize(t, INTERVAL(1, DECADE), "INTERVAL '1 DECADE'")
assertSerialize(t, INTERVAL(1, CENTURY), "INTERVAL '1 CENTURY'")
assertSerialize(t, INTERVAL(1, MILLENNIUM), "INTERVAL '1 MILLENNIUM'")
assertSerialize(t, INTERVAL(1, YEAR, 10, MONTH), "INTERVAL '1 YEAR 10 MONTH'")
assertSerialize(t, INTERVAL(1, YEAR, 10, MONTH, 20, DAY), "INTERVAL '1 YEAR 10 MONTH 20 DAY'")
assertSerialize(t, INTERVAL(1, YEAR, 10, MONTH, 20, DAY, 3, HOUR), "INTERVAL '1 YEAR 10 MONTH 20 DAY 3 HOUR'")
assertSerialize(t, INTERVAL(1, YEAR).IS_NOT_NULL(), "INTERVAL '1 YEAR' IS NOT NULL")
assertProjectionSerialize(t, INTERVAL(1, YEAR).AS("one year"), `INTERVAL '1 YEAR' AS "one year"`)
}
func TestINTERVALd(t *testing.T) {
assertSerialize(t, INTERVALd(0), "INTERVAL '0 MICROSECOND'")
assertSerialize(t, INTERVALd(1*time.Microsecond), "INTERVAL '1 MICROSECOND'")
assertSerialize(t, INTERVALd(1*time.Millisecond), "INTERVAL '1000 MICROSECOND'")
assertSerialize(t, INTERVALd(1*time.Second), "INTERVAL '1 SECOND'")
assertSerialize(t, INTERVALd(1*time.Minute), "INTERVAL '1 MINUTE'")
assertSerialize(t, INTERVALd(1*time.Hour), "INTERVAL '1 HOUR'")
assertSerialize(t, INTERVALd(24*time.Hour), "INTERVAL '1 DAY'")
assertSerialize(t, INTERVALd(24*time.Hour+2*time.Hour+3*time.Minute+4*time.Second+5*time.Microsecond),
"INTERVAL '1 DAY 2 HOUR 3 MINUTE 4 SECOND 5 MICROSECOND'")
}
func TestINTERVAL_InvalidParams(t *testing.T) {
assertPanicErr(t, func() { INTERVAL(1) }, "jet: invalid number of quantity and unit fields")
assertPanicErr(t, func() { INTERVAL(1, 2) }, "jet: invalid INTERVAL unit type")
}
func TestIntervalArithmetic(t *testing.T) {
assertSerialize(t, table2ColDate.ADD(INTERVAL(1, HOUR)), "(table2.col_date + INTERVAL '1 HOUR')")
assertSerialize(t, table2ColDate.SUB(INTERVAL(1, HOUR)), "(table2.col_date - INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTime.ADD(INTERVAL(1, HOUR)), "(table2.col_time + INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTime.SUB(INTERVAL(1, HOUR)), "(table2.col_time - INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimez.ADD(INTERVAL(1, HOUR)), "(table2.col_timez + INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimez.SUB(INTERVAL(1, HOUR)), "(table2.col_timez - INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimestamp.ADD(INTERVAL(1, HOUR)), "(table2.col_timestamp + INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimestamp.SUB(INTERVAL(1, HOUR)), "(table2.col_timestamp - INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimestampz.ADD(INTERVAL(1, HOUR)), "(table2.col_timestampz + INTERVAL '1 HOUR')")
assertSerialize(t, table2ColTimestampz.SUB(INTERVAL(1, HOUR)), "(table2.col_timestampz - INTERVAL '1 HOUR')")
}