reifydb_routine/function/duration/
trunc.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, duration::Duration, r#type::Type};
6
7use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
8
9pub struct DurationTrunc {
10	info: RoutineInfo,
11}
12
13impl Default for DurationTrunc {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DurationTrunc {
20	pub fn new() -> Self {
21		Self {
22			info: RoutineInfo::new("duration::trunc"),
23		}
24	}
25}
26
27impl<'a> Routine<FunctionContext<'a>> for DurationTrunc {
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 dur_col = &args[0];
46		let prec_col = &args[1];
47
48		let (dur_data, dur_bv) = dur_col.unwrap_option();
49		let (prec_data, _) = prec_col.unwrap_option();
50
51		match (dur_data, prec_data) {
52			(
53				ColumnBuffer::Duration(dur_container),
54				ColumnBuffer::Utf8 {
55					container: prec_container,
56					..
57				},
58			) => {
59				let row_count = dur_data.len();
60				let mut container = TemporalContainer::with_capacity(row_count);
61
62				for i in 0..row_count {
63					match (dur_container.get(i), prec_container.is_defined(i)) {
64						(Some(dur), true) => {
65							let precision = prec_container.get(i).unwrap();
66							let months = dur.get_months();
67							let days = dur.get_days();
68							let nanos = dur.get_nanos();
69
70							let truncated = match precision {
71								"year" => Duration::new((months / 12) * 12, 0, 0)?,
72								"month" => Duration::new(months, 0, 0)?,
73								"day" => Duration::new(months, days, 0)?,
74								"hour" => Duration::new(
75									months,
76									days,
77									(nanos / 3_600_000_000_000) * 3_600_000_000_000,
78								)?,
79								"minute" => Duration::new(
80									months,
81									days,
82									(nanos / 60_000_000_000) * 60_000_000_000,
83								)?,
84								"second" => Duration::new(
85									months,
86									days,
87									(nanos / 1_000_000_000) * 1_000_000_000,
88								)?,
89								"millis" => Duration::new(
90									months,
91									days,
92									(nanos / 1_000_000) * 1_000_000,
93								)?,
94								other => {
95									return Err(
96										RoutineError::FunctionExecutionFailed {
97											function: ctx.fragment.clone(),
98											reason: format!(
99												"invalid precision: '{}'",
100												other
101											),
102										},
103									);
104								}
105							};
106							container.push(truncated);
107						}
108						_ => container.push_default(),
109					}
110				}
111
112				let mut result_data = ColumnBuffer::Duration(container);
113				if let Some(bv) = dur_bv {
114					result_data = ColumnBuffer::Option {
115						inner: Box::new(result_data),
116						bitvec: bv.clone(),
117					};
118				}
119				Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), result_data)]))
120			}
121			(ColumnBuffer::Duration(_), other) => Err(RoutineError::FunctionInvalidArgumentType {
122				function: ctx.fragment.clone(),
123				argument_index: 1,
124				expected: vec![Type::Utf8],
125				actual: other.get_type(),
126			}),
127			(other, _) => Err(RoutineError::FunctionInvalidArgumentType {
128				function: ctx.fragment.clone(),
129				argument_index: 0,
130				expected: vec![Type::Duration],
131				actual: other.get_type(),
132			}),
133		}
134	}
135}
136
137impl Function for DurationTrunc {
138	fn kinds(&self) -> &[FunctionKind] {
139		&[FunctionKind::Scalar]
140	}
141}
reifydb_routine/function/duration/trunc.rs

reifydb_routine/function/duration/
trunc.rs
