reifydb_function/duration/
trunc.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, duration::Duration, r#type::Type};
6
7use crate::{ScalarFunction, ScalarFunctionContext, error::ScalarFunctionError, propagate_options};
8
9pub struct DurationTrunc;
10
11impl DurationTrunc {
12	pub fn new() -> Self {
13		Self
14	}
15}
16
17impl ScalarFunction for DurationTrunc {
18	fn scalar(&self, ctx: ScalarFunctionContext) -> crate::error::ScalarFunctionResult<ColumnData> {
19		if let Some(result) = propagate_options(self, &ctx) {
20			return result;
21		}
22		let columns = ctx.columns;
23		let row_count = ctx.row_count;
24
25		if columns.len() != 2 {
26			return Err(ScalarFunctionError::ArityMismatch {
27				function: ctx.fragment.clone(),
28				expected: 2,
29				actual: columns.len(),
30			});
31		}
32
33		let dur_col = columns.get(0).unwrap();
34		let prec_col = columns.get(1).unwrap();
35
36		match (dur_col.data(), prec_col.data()) {
37			(
38				ColumnData::Duration(dur_container),
39				ColumnData::Utf8 {
40					container: prec_container,
41					..
42				},
43			) => {
44				let mut container = TemporalContainer::with_capacity(row_count);
45
46				for i in 0..row_count {
47					match (dur_container.get(i), prec_container.is_defined(i)) {
48						(Some(dur), true) => {
49							let precision = &prec_container[i];
50							let months = dur.get_months();
51							let days = dur.get_days();
52							let nanos = dur.get_nanos();
53
54							let truncated = match precision.as_str() {
55								"year" => Duration::new((months / 12) * 12, 0, 0),
56								"month" => Duration::new(months, 0, 0),
57								"day" => Duration::new(months, days, 0),
58								"hour" => Duration::new(
59									months,
60									days,
61									(nanos / 3_600_000_000_000) * 3_600_000_000_000,
62								),
63								"minute" => Duration::new(
64									months,
65									days,
66									(nanos / 60_000_000_000) * 60_000_000_000,
67								),
68								"second" => Duration::new(
69									months,
70									days,
71									(nanos / 1_000_000_000) * 1_000_000_000,
72								),
73								"millis" => Duration::new(
74									months,
75									days,
76									(nanos / 1_000_000) * 1_000_000,
77								),
78								other => {
79									return Err(
80										ScalarFunctionError::ExecutionFailed {
81											function: ctx.fragment.clone(),
82											reason: format!(
83												"invalid precision: '{}'",
84												other
85											),
86										},
87									);
88								}
89							};
90							container.push(truncated);
91						}
92						_ => container.push_default(),
93					}
94				}
95
96				Ok(ColumnData::Duration(container))
97			}
98			(ColumnData::Duration(_), other) => Err(ScalarFunctionError::InvalidArgumentType {
99				function: ctx.fragment.clone(),
100				argument_index: 1,
101				expected: vec![Type::Utf8],
102				actual: other.get_type(),
103			}),
104			(other, _) => Err(ScalarFunctionError::InvalidArgumentType {
105				function: ctx.fragment.clone(),
106				argument_index: 0,
107				expected: vec![Type::Duration],
108				actual: other.get_type(),
109			}),
110		}
111	}
112
113	fn return_type(&self, _input_types: &[Type]) -> Type {
114		Type::Duration
115	}
116}
reifydb_function/duration/trunc.rs

reifydb_function/duration/
trunc.rs
