reifydb_routine/function/duration/
subtract.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::{Column, columns::Columns, data::ColumnData};
5use reifydb_type::value::{container::temporal::TemporalContainer, r#type::Type};
6
7use crate::function::{Function, FunctionCapability, FunctionContext, FunctionInfo, error::FunctionError};
8
9pub struct DurationSubtract {
10	info: FunctionInfo,
11}
12
13impl Default for DurationSubtract {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DurationSubtract {
20	pub fn new() -> Self {
21		Self {
22			info: FunctionInfo::new("duration::subtract"),
23		}
24	}
25}
26
27impl Function for DurationSubtract {
28	fn info(&self) -> &FunctionInfo {
29		&self.info
30	}
31
32	fn capabilities(&self) -> &[FunctionCapability] {
33		&[FunctionCapability::Scalar]
34	}
35
36	fn return_type(&self, _input_types: &[Type]) -> Type {
37		Type::Duration
38	}
39
40	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
41		if args.len() != 2 {
42			return Err(FunctionError::ArityMismatch {
43				function: ctx.fragment.clone(),
44				expected: 2,
45				actual: args.len(),
46			});
47		}
48
49		let lhs_col = &args[0];
50		let rhs_col = &args[1];
51
52		let (lhs_data, lhs_bv) = lhs_col.data().unwrap_option();
53		let (rhs_data, rhs_bv) = rhs_col.data().unwrap_option();
54
55		match (lhs_data, rhs_data) {
56			(ColumnData::Duration(lhs_container), ColumnData::Duration(rhs_container)) => {
57				let row_count = lhs_data.len();
58				let mut container = TemporalContainer::with_capacity(row_count);
59
60				for i in 0..row_count {
61					match (lhs_container.get(i), rhs_container.get(i)) {
62						(Some(lv), Some(rv)) => {
63							container.push(*lv - *rv);
64						}
65						_ => container.push_default(),
66					}
67				}
68
69				let mut result_data = ColumnData::Duration(container);
70				if let Some(bv) = lhs_bv {
71					result_data = ColumnData::Option {
72						inner: Box::new(result_data),
73						bitvec: bv.clone(),
74					};
75				} else if let Some(bv) = rhs_bv {
76					result_data = ColumnData::Option {
77						inner: Box::new(result_data),
78						bitvec: bv.clone(),
79					};
80				}
81				Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), result_data)]))
82			}
83			(ColumnData::Duration(_), other) => Err(FunctionError::InvalidArgumentType {
84				function: ctx.fragment.clone(),
85				argument_index: 1,
86				expected: vec![Type::Duration],
87				actual: other.get_type(),
88			}),
89			(other, _) => Err(FunctionError::InvalidArgumentType {
90				function: ctx.fragment.clone(),
91				argument_index: 0,
92				expected: vec![Type::Duration],
93				actual: other.get_type(),
94			}),
95		}
96	}
97}
reifydb_routine/function/duration/subtract.rs

reifydb_routine/function/duration/
subtract.rs
