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Add QUARTER and DAY_OF_YEAR date functions with tests and docs #804

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Add QUARTER and DAY_OF_YEAR date functions with tests and docs
Alperenu0 Jun 18, 2026
457d90b
Merge branch 'master' into add-quarter-and-day-of-year
Alperenu0 Jul 28, 2026
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29 changes: 29 additions & 0 deletions docs/docs-en/source/5.application-development/2.dsl/3.build-in/date.md
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Expand Up @@ -12,6 +12,8 @@ GeaFlow support the following date function:
* [lastday](#lastday)
* [day_of_month](#day_of_month)
* [week_of_year](#week_of_year)
* [quarter](#quarter)
* [day_of_year](#day_of_year)
* [date_add](#date_add)
* [date_sub](#date_sub)
* [date_diff](#date_diff)
Expand Down Expand Up @@ -205,7 +207,34 @@ Returns the week of the year of the given date. The default format is "yyyy-MM-d
```sql
week_of_year('1987-06-05 00:11:22') = 23
```
## quarter
**Syntax**

```sql
int quarter(string dateString)
```

**Description**
Returns the quarter of the year of the given date (1-4). The default format is "yyyy-MM-dd" or "yyyy-MM-dd HH:mm:ss". Returns null if the input is null.

**Example**
```sql
quarter('1987-06-05 00:11:22') = 2
```
## day_of_year

**Syntax**

```sql
int day_of_year(string dateString)
```
**Description**
Returns the day of the year of the given date (1-366). The default format is "yyyy-MM-dd" or "yyyy-MM-dd HH:mm:ss". Returns null if the input is null.

**Example**
```sql
day_of_year('1987-06-05 00:11:22') = 156
```

## date_add
**Syntax**
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5 changes: 5 additions & 0 deletions ...sl-plan/src/main/java/org/apache/geaflow/dsl/schema/function/BuildInSqlFunctionTable.java
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Expand Up @@ -83,6 +83,8 @@
import org.apache.geaflow.dsl.udf.table.date.UnixTimeStampMillis;
import org.apache.geaflow.dsl.udf.table.date.WeekDay;
import org.apache.geaflow.dsl.udf.table.date.WeekOfYear;
import org.apache.geaflow.dsl.udf.table.date.Quarter;
import org.apache.geaflow.dsl.udf.table.date.DayOfYear;
import org.apache.geaflow.dsl.udf.table.date.Year;
import org.apache.geaflow.dsl.udf.table.math.Cbrt;
import org.apache.geaflow.dsl.udf.table.math.E;
Expand Down Expand Up @@ -132,6 +134,7 @@
import org.apache.geaflow.dsl.udf.table.string.UrlEncode;
import org.apache.geaflow.dsl.util.FunctionUtil;


/**
* SQL build-in {@link SqlFunction}s.
*/
Expand Down Expand Up @@ -167,6 +170,8 @@ public class BuildInSqlFunctionTable extends ListSqlOperatorTable {
.add(GeaFlowFunction.of(UnixTimeStampMillis.class))
.add(GeaFlowFunction.of(WeekDay.class))
.add(GeaFlowFunction.of(WeekOfYear.class))
.add(GeaFlowFunction.of(Quarter.class))
.add(GeaFlowFunction.of(DayOfYear.class))
.add(GeaFlowFunction.of(Year.class))

// udf.table.array
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2 changes: 1 addition & 1 deletion ...w-dsl/geaflow-dsl-plan/src/main/java/org/apache/geaflow/dsl/udf/table/date/DayOfYear.java
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@@ -1,4 +1,4 @@
/*
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
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2 changes: 1 addition & 1 deletion ...-dsl/geaflow-dsl-plan/src/main/java/org/apache/geaflow/dsl/udf/table/date/WeekOfYear.java
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@@ -1,4 +1,4 @@
/*
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
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2 changes: 2 additions & 0 deletions ...aflow-dsl/geaflow-dsl-plan/src/test/java/org/apache/geaflow/dsl/udf/date/UDFDateTest.java
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Expand Up @@ -48,6 +48,8 @@
import org.apache.geaflow.dsl.udf.table.date.UnixTimeStampMillis;
import org.apache.geaflow.dsl.udf.table.date.WeekDay;
import org.apache.geaflow.dsl.udf.table.date.WeekOfYear;
import org.apache.geaflow.dsl.udf.table.date.Quarter;
import org.apache.geaflow.dsl.udf.table.date.DayOfYear;
import org.apache.geaflow.dsl.udf.table.date.Year;
import org.testng.annotations.Test;

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