feat: add date functions QUARTER and DAY_OF_YEAR#814
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Add two new date UDFs: - quarter(date): returns the quarter of the year (1-4) - day_of_year(date): returns the day of the year (1-366) Both follow the existing WeekOfYear pattern using Joda-Time. Registered in BuildInSqlFunctionTable. Tests cover quarter boundaries, leap years, year boundaries, and null inputs. Closes apache#791
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Leomrlin
reviewed
Jul 20, 2026
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These tests verify the Java methods directly, but they do not exercise SQL registration, overload resolution, type inference, or runtime invocation.
Could we add an end-to-end SQL test for them there?
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Add two new date UDFs:
Both follow the existing WeekOfYear pattern using Joda-Time. Registered in BuildInSqlFunctionTable.
Tests cover quarter boundaries, leap years, year boundaries, and null inputs.
Closes #791
What changes were proposed in this pull request?
Add two new date UDFs:
quarter(date): returns the quarter of the year (1-4), e.g. quarter('2020-06-05') = 2day_of_year(date): returns the day of the year (1-366), e.g. day_of_year('2020-12-31') = 366Both follow the existing WeekOfYear pattern using Joda-Time DateTime and DateTimeFormatter.
Registered in BuildInSqlFunctionTable.java.
How was this PR tested?