reifydb_function/datetime/
date.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, r#type::Type};
6
7use crate::{ScalarFunction, ScalarFunctionContext, error::ScalarFunctionError, propagate_options};
8
9pub struct DateTimeDate;
10
11impl DateTimeDate {
12	pub fn new() -> Self {
13		Self
14	}
15}
16
17impl ScalarFunction for DateTimeDate {
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() != 1 {
26			return Err(ScalarFunctionError::ArityMismatch {
27				function: ctx.fragment.clone(),
28				expected: 1,
29				actual: columns.len(),
30			});
31		}
32
33		let col = columns.get(0).unwrap();
34
35		match col.data() {
36			ColumnData::DateTime(container) => {
37				let mut result = TemporalContainer::with_capacity(row_count);
38
39				for i in 0..row_count {
40					if let Some(dt) = container.get(i) {
41						result.push(dt.date());
42					} else {
43						result.push_default();
44					}
45				}
46
47				Ok(ColumnData::Date(result))
48			}
49			other => Err(ScalarFunctionError::InvalidArgumentType {
50				function: ctx.fragment.clone(),
51				argument_index: 0,
52				expected: vec![Type::DateTime],
53				actual: other.get_type(),
54			}),
55		}
56	}
57
58	fn return_type(&self, _input_types: &[Type]) -> Type {
59		Type::Date
60	}
61}
reifydb_function/datetime/date.rs

reifydb_function/datetime/
date.rs
