reifydb_routine/function/datetime/
add.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::data::ColumnData;
5use reifydb_type::value::{container::temporal::TemporalContainer, r#type::Type};
6
7use crate::function::{
8	ScalarFunction, ScalarFunctionContext,
9	error::{ScalarFunctionError, ScalarFunctionResult},
10	propagate_options,
11};
12
13pub struct DateTimeAdd;
14
15impl DateTimeAdd {
16	pub fn new() -> Self {
17		Self
18	}
19}
20
21impl ScalarFunction for DateTimeAdd {
22	fn scalar(&self, ctx: ScalarFunctionContext) -> ScalarFunctionResult<ColumnData> {
23		if let Some(result) = propagate_options(self, &ctx) {
24			return result;
25		}
26		let columns = ctx.columns;
27		let row_count = ctx.row_count;
28
29		if columns.len() != 2 {
30			return Err(ScalarFunctionError::ArityMismatch {
31				function: ctx.fragment.clone(),
32				expected: 2,
33				actual: columns.len(),
34			});
35		}
36
37		let dt_col = columns.get(0).unwrap();
38		let dur_col = columns.get(1).unwrap();
39
40		match (dt_col.data(), dur_col.data()) {
41			(ColumnData::DateTime(dt_container), ColumnData::Duration(dur_container)) => {
42				let mut container = TemporalContainer::with_capacity(row_count);
43
44				for i in 0..row_count {
45					match (dt_container.get(i), dur_container.get(i)) {
46						(Some(dt), Some(dur)) => match dt.add_duration(&dur) {
47							Ok(result) => container.push(result),
48							Err(err) => {
49								return Err(ScalarFunctionError::ExecutionFailed {
50									function: ctx.fragment.clone(),
51									reason: format!("{}", err),
52								});
53							}
54						},
55						_ => container.push_default(),
56					}
57				}
58
59				Ok(ColumnData::DateTime(container))
60			}
61			(ColumnData::DateTime(_), other) => Err(ScalarFunctionError::InvalidArgumentType {
62				function: ctx.fragment.clone(),
63				argument_index: 1,
64				expected: vec![Type::Duration],
65				actual: other.get_type(),
66			}),
67			(other, _) => Err(ScalarFunctionError::InvalidArgumentType {
68				function: ctx.fragment.clone(),
69				argument_index: 0,
70				expected: vec![Type::DateTime],
71				actual: other.get_type(),
72			}),
73		}
74	}
75
76	fn return_type(&self, _input_types: &[Type]) -> Type {
77		Type::DateTime
78	}
79}
reifydb_routine/function/datetime/add.rs

reifydb_routine/function/datetime/
add.rs
