reifydb_routine/function/duration/
subtract.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::{container::temporal::TemporalContainer, r#type::Type};
6
7use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
8
9pub struct DurationSubtract {
10	info: RoutineInfo,
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: RoutineInfo::new("duration::subtract"),
23		}
24	}
25}
26
27impl<'a> Routine<FunctionContext<'a>> for DurationSubtract {
28	fn info(&self) -> &RoutineInfo {
29		&self.info
30	}
31
32	fn return_type(&self, _input_types: &[Type]) -> Type {
33		Type::Duration
34	}
35
36	fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
37		if args.len() != 2 {
38			return Err(RoutineError::FunctionArityMismatch {
39				function: ctx.fragment.clone(),
40				expected: 2,
41				actual: args.len(),
42			});
43		}
44
45		let lhs_col = &args[0];
46		let rhs_col = &args[1];
47
48		let (lhs_data, lhs_bv) = lhs_col.unwrap_option();
49		let (rhs_data, rhs_bv) = rhs_col.unwrap_option();
50
51		match (lhs_data, rhs_data) {
52			(ColumnBuffer::Duration(lhs_container), ColumnBuffer::Duration(rhs_container)) => {
53				let row_count = lhs_data.len();
54				let mut container = TemporalContainer::with_capacity(row_count);
55
56				for i in 0..row_count {
57					match (lhs_container.get(i), rhs_container.get(i)) {
58						(Some(lv), Some(rv)) => {
59							container.push(*lv - *rv);
60						}
61						_ => container.push_default(),
62					}
63				}
64
65				let mut result_data = ColumnBuffer::Duration(container);
66				if let Some(bv) = lhs_bv {
67					result_data = ColumnBuffer::Option {
68						inner: Box::new(result_data),
69						bitvec: bv.clone(),
70					};
71				} else if let Some(bv) = rhs_bv {
72					result_data = ColumnBuffer::Option {
73						inner: Box::new(result_data),
74						bitvec: bv.clone(),
75					};
76				}
77				Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), result_data)]))
78			}
79			(ColumnBuffer::Duration(_), other) => Err(RoutineError::FunctionInvalidArgumentType {
80				function: ctx.fragment.clone(),
81				argument_index: 1,
82				expected: vec![Type::Duration],
83				actual: other.get_type(),
84			}),
85			(other, _) => Err(RoutineError::FunctionInvalidArgumentType {
86				function: ctx.fragment.clone(),
87				argument_index: 0,
88				expected: vec![Type::Duration],
89				actual: other.get_type(),
90			}),
91		}
92	}
93}
94
95impl Function for DurationSubtract {
96	fn kinds(&self) -> &[FunctionKind] {
97		&[FunctionKind::Scalar]
98	}
99}
reifydb_routine/function/duration/subtract.rs

reifydb_routine/function/duration/
subtract.rs
