cloud-fan commented on a change in pull request #26132: [SPARK-29387][SQL]
Support `*` and `/` operators for intervals
URL: https://github.com/apache/spark/pull/26132#discussion_r341947808
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File path:
common/unsafe/src/main/java/org/apache/spark/unsafe/types/CalendarInterval.java
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@@ -59,6 +59,27 @@ public CalendarInterval subtract(CalendarInterval that) {
return new CalendarInterval(months, days, microseconds);
}
+ private static CalendarInterval fromDoubles(
+ double monthsWithFraction,
+ double daysWithFraction,
+ double microsWithFraction) {
+ int truncatedMonths = Math.toIntExact((long)(monthsWithFraction));
+ // Using 30 days per month as PostgreSQL does.
+ double days = daysWithFraction + 30 * (monthsWithFraction -
truncatedMonths);
Review comment:
is this consistent with pgsql? i.e. we convert the truncated months to days.
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