mihaibudiu commented on code in PR #3653:
URL: https://github.com/apache/calcite/pull/3653#discussion_r1468017641
##########
core/src/main/java/org/apache/calcite/util/format/FormatElementEnum.java:
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@@ -132,17 +133,41 @@ public enum FormatElementEnum implements FormatElement {
sb.append(String.format(Locale.ROOT, "%02d",
calendar.get(Calendar.HOUR_OF_DAY)));
}
},
+ ID("u", "The weekday (Monday as the first day of the week) as a decimal
number (1-7)") {
+ @Override public void format(StringBuilder sb, Date date) {
+ final Calendar calendar = Work.get().calendar;
+ calendar.setTime(date);
+ int weekDay = calendar.get(Calendar.DAY_OF_WEEK);
+ sb.append(String.format(Locale.ROOT, "%d", weekDay == 1 ? 7 : weekDay -
1));
Review Comment:
The DOW function implementation assumes that Sunday = 1.
In Postgres DOW assumes that Sunday = 0.
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