reifydb_function/duration/
subtract.rs

1// SPDX-License-Identifier: AGPL-3.0-or-later
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::{
8	ScalarFunction, ScalarFunctionContext,
9	error::{ScalarFunctionError, ScalarFunctionResult},
10	propagate_options,
11};
12
13pub struct DurationSubtract;
14
15impl DurationSubtract {
16	pub fn new() -> Self {
17		Self
18	}
19}
20
21impl ScalarFunction for DurationSubtract {
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 lhs_col = columns.get(0).unwrap();
38		let rhs_col = columns.get(1).unwrap();
39
40		match (lhs_col.data(), rhs_col.data()) {
41			(ColumnData::Duration(lhs_container), ColumnData::Duration(rhs_container)) => {
42				let mut container = TemporalContainer::with_capacity(row_count);
43
44				for i in 0..row_count {
45					match (lhs_container.get(i), rhs_container.get(i)) {
46						(Some(lv), Some(rv)) => {
47							container.push(*lv - *rv);
48						}
49						_ => container.push_default(),
50					}
51				}
52
53				Ok(ColumnData::Duration(container))
54			}
55			(ColumnData::Duration(_), other) => Err(ScalarFunctionError::InvalidArgumentType {
56				function: ctx.fragment.clone(),
57				argument_index: 1,
58				expected: vec![Type::Duration],
59				actual: other.get_type(),
60			}),
61			(other, _) => Err(ScalarFunctionError::InvalidArgumentType {
62				function: ctx.fragment.clone(),
63				argument_index: 0,
64				expected: vec![Type::Duration],
65				actual: other.get_type(),
66			}),
67		}
68	}
69
70	fn return_type(&self, _input_types: &[Type]) -> Type {
71		Type::Duration
72	}
73}
reifydb_function/duration/subtract.rs

reifydb_function/duration/
subtract.rs
