reifydb_routine/function/duration/
scale.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 DurationScale {
10	info: FunctionInfo,
11}
12
13impl Default for DurationScale {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DurationScale {
20	pub fn new() -> Self {
21		Self {
22			info: FunctionInfo::new("duration::scale"),
23		}
24	}
25}
26
27fn extract_i64(data: &ColumnData, i: usize) -> Option<i64> {
28	match data {
29		ColumnData::Int1(c) => c.get(i).map(|&v| v as i64),
30		ColumnData::Int2(c) => c.get(i).map(|&v| v as i64),
31		ColumnData::Int4(c) => c.get(i).map(|&v| v as i64),
32		ColumnData::Int8(c) => c.get(i).copied(),
33		ColumnData::Int16(c) => c.get(i).map(|&v| v as i64),
34		ColumnData::Uint1(c) => c.get(i).map(|&v| v as i64),
35		ColumnData::Uint2(c) => c.get(i).map(|&v| v as i64),
36		ColumnData::Uint4(c) => c.get(i).map(|&v| v as i64),
37		ColumnData::Uint8(c) => c.get(i).map(|&v| v as i64),
38		ColumnData::Uint16(c) => c.get(i).map(|&v| v as i64),
39		_ => None,
40	}
41}
42
43fn is_integer_type(data: &ColumnData) -> bool {
44	matches!(
45		data,
46		ColumnData::Int1(_)
47			| ColumnData::Int2(_) | ColumnData::Int4(_)
48			| ColumnData::Int8(_) | ColumnData::Int16(_)
49			| ColumnData::Uint1(_)
50			| ColumnData::Uint2(_)
51			| ColumnData::Uint4(_)
52			| ColumnData::Uint8(_)
53			| ColumnData::Uint16(_)
54	)
55}
56
57impl Function for DurationScale {
58	fn info(&self) -> &FunctionInfo {
59		&self.info
60	}
61
62	fn capabilities(&self) -> &[FunctionCapability] {
63		&[FunctionCapability::Scalar]
64	}
65
66	fn return_type(&self, _input_types: &[Type]) -> Type {
67		Type::Duration
68	}
69
70	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
71		if args.len() != 2 {
72			return Err(FunctionError::ArityMismatch {
73				function: ctx.fragment.clone(),
74				expected: 2,
75				actual: args.len(),
76			});
77		}
78
79		let dur_col = &args[0];
80		let scalar_col = &args[1];
81
82		let (dur_data, dur_bv) = dur_col.data().unwrap_option();
83		let (scalar_data, scalar_bv) = scalar_col.data().unwrap_option();
84
85		match dur_data {
86			ColumnData::Duration(dur_container) => {
87				if !is_integer_type(scalar_data) {
88					return Err(FunctionError::InvalidArgumentType {
89						function: ctx.fragment.clone(),
90						argument_index: 1,
91						expected: vec![
92							Type::Int1,
93							Type::Int2,
94							Type::Int4,
95							Type::Int8,
96							Type::Int16,
97							Type::Uint1,
98							Type::Uint2,
99							Type::Uint4,
100							Type::Uint8,
101							Type::Uint16,
102						],
103						actual: scalar_data.get_type(),
104					});
105				}
106
107				let row_count = dur_data.len();
108				let mut container = TemporalContainer::with_capacity(row_count);
109
110				for i in 0..row_count {
111					match (dur_container.get(i), extract_i64(scalar_data, i)) {
112						(Some(dur), Some(scalar)) => {
113							container.push(*dur * scalar);
114						}
115						_ => container.push_default(),
116					}
117				}
118
119				let mut result_data = ColumnData::Duration(container);
120				if let Some(bv) = dur_bv {
121					result_data = ColumnData::Option {
122						inner: Box::new(result_data),
123						bitvec: bv.clone(),
124					};
125				} else if let Some(bv) = scalar_bv {
126					result_data = ColumnData::Option {
127						inner: Box::new(result_data),
128						bitvec: bv.clone(),
129					};
130				}
131				Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), result_data)]))
132			}
133			other => Err(FunctionError::InvalidArgumentType {
134				function: ctx.fragment.clone(),
135				argument_index: 0,
136				expected: vec![Type::Duration],
137				actual: other.get_type(),
138			}),
139		}
140	}
141}
reifydb_routine/function/duration/scale.rs

reifydb_routine/function/duration/
scale.rs
