reifydb_routine/function/time/
now.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::{Column, columns::Columns, data::ColumnData};
5use reifydb_type::value::{container::temporal::TemporalContainer, datetime::DateTime, r#type::Type};
6
7use crate::function::{Function, FunctionCapability, FunctionContext, FunctionInfo, error::FunctionError};
8
9pub struct TimeNow {
10	info: FunctionInfo,
11}
12
13impl Default for TimeNow {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl TimeNow {
20	pub fn new() -> Self {
21		Self {
22			info: FunctionInfo::new("time::now"),
23		}
24	}
25}
26
27impl Function for TimeNow {
28	fn info(&self) -> &FunctionInfo {
29		&self.info
30	}
31
32	fn capabilities(&self) -> &[FunctionCapability] {
33		&[FunctionCapability::Scalar]
34	}
35
36	fn return_type(&self, _input_types: &[Type]) -> Type {
37		Type::Time
38	}
39
40	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
41		if !args.is_empty() {
42			return Err(FunctionError::ArityMismatch {
43				function: ctx.fragment.clone(),
44				expected: 0,
45				actual: args.len(),
46			});
47		}
48
49		let millis = ctx.runtime_context.clock.now_millis();
50		let dt = DateTime::from_timestamp_millis(millis)?;
51		let time = dt.time();
52
53		// For zero-arg functions, we produce a single row
54		let mut container = TemporalContainer::with_capacity(1);
55		container.push(time);
56
57		let result_data = ColumnData::Time(container);
58		Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), result_data)]))
59	}
60}
reifydb_routine/function/time/now.rs

reifydb_routine/function/time/
now.rs
