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

reifydb_function/datetime/
now.rs
