reifydb_routine/function/datetime/
day_of_year.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::{ColumnWithName, buffer::ColumnBuffer, columns::Columns};
5use reifydb_type::value::{date::Date, r#type::Type};
6
7use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
8
9pub struct DateTimeDayOfYear {
10	info: RoutineInfo,
11}
12
13impl Default for DateTimeDayOfYear {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DateTimeDayOfYear {
20	pub fn new() -> Self {
21		Self {
22			info: RoutineInfo::new("datetime::day_of_year"),
23		}
24	}
25}
26
27impl<'a> Routine<FunctionContext<'a>> for DateTimeDayOfYear {
28	fn info(&self) -> &RoutineInfo {
29		&self.info
30	}
31
32	fn return_type(&self, _input_types: &[Type]) -> Type {
33		Type::Int4
34	}
35
36	fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
37		if args.len() != 1 {
38			return Err(RoutineError::FunctionArityMismatch {
39				function: ctx.fragment.clone(),
40				expected: 1,
41				actual: args.len(),
42			});
43		}
44
45		let column = &args[0];
46		let (data, bitvec) = column.unwrap_option();
47		let row_count = data.len();
48
49		let result_data = match data {
50			ColumnBuffer::DateTime(container) => {
51				let mut result = Vec::with_capacity(row_count);
52				let mut res_bitvec = Vec::with_capacity(row_count);
53
54				for i in 0..row_count {
55					if let Some(dt) = container.get(i) {
56						let date = dt.date();
57						let jan1 = Date::new(date.year(), 1, 1).ok_or_else(|| {
58							RoutineError::FunctionExecutionFailed {
59								function: ctx.fragment.clone(),
60								reason: "failed to construct Jan 1 date".to_string(),
61							}
62						})?;
63						let doy = date.to_days_since_epoch() - jan1.to_days_since_epoch() + 1;
64						result.push(doy);
65						res_bitvec.push(true);
66					} else {
67						result.push(0);
68						res_bitvec.push(false);
69					}
70				}
71
72				ColumnBuffer::int4_with_bitvec(result, res_bitvec)
73			}
74			other => {
75				return Err(RoutineError::FunctionInvalidArgumentType {
76					function: ctx.fragment.clone(),
77					argument_index: 0,
78					expected: vec![Type::DateTime],
79					actual: other.get_type(),
80				});
81			}
82		};
83
84		let final_data = if let Some(bv) = bitvec {
85			ColumnBuffer::Option {
86				inner: Box::new(result_data),
87				bitvec: bv.clone(),
88			}
89		} else {
90			result_data
91		};
92
93		Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
94	}
95}
96
97impl Function for DateTimeDayOfYear {
98	fn kinds(&self) -> &[FunctionKind] {
99		&[FunctionKind::Scalar]
100	}
101}
reifydb_routine/function/datetime/day_of_year.rs

reifydb_routine/function/datetime/
day_of_year.rs
