reifydb_routine/function/datetime/
now.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::data::ColumnData;
5use reifydb_type::value::{container::temporal::TemporalContainer, datetime::DateTime, r#type::Type};
6
7use crate::function::{
8	ScalarFunction, ScalarFunctionContext,
9	error::{ScalarFunctionError, ScalarFunctionResult},
10	propagate_options,
11};
12
13pub struct DateTimeNow;
14
15impl DateTimeNow {
16	pub fn new() -> Self {
17		Self
18	}
19}
20
21impl ScalarFunction for DateTimeNow {
22	fn scalar(&self, ctx: ScalarFunctionContext) -> ScalarFunctionResult<ColumnData> {
23		if let Some(result) = propagate_options(self, &ctx) {
24			return result;
25		}
26		let row_count = ctx.row_count;
27
28		if ctx.columns.len() != 0 {
29			return Err(ScalarFunctionError::ArityMismatch {
30				function: ctx.fragment.clone(),
31				expected: 0,
32				actual: ctx.columns.len(),
33			});
34		}
35
36		let millis = ctx.runtime_context.clock.now_millis();
37		let dt = DateTime::from_timestamp_millis(millis)?;
38
39		let mut container = TemporalContainer::with_capacity(row_count);
40		for _ in 0..row_count {
41			container.push(dt);
42		}
43
44		Ok(ColumnData::DateTime(container))
45	}
46
47	fn return_type(&self, _input_types: &[Type]) -> Type {
48		Type::DateTime
49	}
50}
reifydb_routine/function/datetime/now.rs

reifydb_routine/function/datetime/
now.rs
