reifydb_routine/function/datetime/
time.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 DateTimeTime {
10	info: RoutineInfo,
11}
12
13impl Default for DateTimeTime {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DateTimeTime {
20	pub fn new() -> Self {
21		Self {
22			info: RoutineInfo::new("datetime::time"),
23		}
24	}
25}
26
27impl<'a> Routine<FunctionContext<'a>> for DateTimeTime {
28	fn info(&self) -> &RoutineInfo {
29		&self.info
30	}
31
32	fn return_type(&self, _input_types: &[Type]) -> Type {
33		Type::Time
34	}
35
36	fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
37		if args.len() != 1 {
38			return Err(RoutineError::FunctionArityMismatch {
39				function: ctx.fragment.clone(),
40				expected: 1,
41				actual: args.len(),
42			});
43		}
44
45		let column = &args[0];
46		let (data, bitvec) = column.unwrap_option();
47		let row_count = data.len();
48
49		let result_data = match data {
50			ColumnBuffer::DateTime(container) => {
51				let mut result = TemporalContainer::with_capacity(row_count);
52
53				for i in 0..row_count {
54					if let Some(dt) = container.get(i) {
55						result.push(dt.time());
56					} else {
57						result.push_default();
58					}
59				}
60
61				ColumnBuffer::Time(result)
62			}
63			other => {
64				return Err(RoutineError::FunctionInvalidArgumentType {
65					function: ctx.fragment.clone(),
66					argument_index: 0,
67					expected: vec![Type::DateTime],
68					actual: other.get_type(),
69				});
70			}
71		};
72
73		let final_data = if let Some(bv) = bitvec {
74			ColumnBuffer::Option {
75				inner: Box::new(result_data),
76				bitvec: bv.clone(),
77			}
78		} else {
79			result_data
80		};
81
82		Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
83	}
84}
85
86impl Function for DateTimeTime {
87	fn kinds(&self) -> &[FunctionKind] {
88		&[FunctionKind::Scalar]
89	}
90}
reifydb_routine/function/datetime/time.rs

reifydb_routine/function/datetime/
time.rs
