reifydb_routine/function/datetime/
date.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, r#type::Type};
6
7use crate::function::{Function, FunctionCapability, FunctionContext, FunctionInfo, error::FunctionError};
8
9pub struct DateTimeDate {
10	info: FunctionInfo,
11}
12
13impl Default for DateTimeDate {
14	fn default() -> Self {
15		Self::new()
16	}
17}
18
19impl DateTimeDate {
20	pub fn new() -> Self {
21		Self {
22			info: FunctionInfo::new("datetime::date"),
23		}
24	}
25}
26
27impl Function for DateTimeDate {
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::Date
38	}
39
40	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
41		if args.len() != 1 {
42			return Err(FunctionError::ArityMismatch {
43				function: ctx.fragment.clone(),
44				expected: 1,
45				actual: args.len(),
46			});
47		}
48
49		let column = &args[0];
50		let (data, bitvec) = column.data().unwrap_option();
51		let row_count = data.len();
52
53		let result_data = match data {
54			ColumnData::DateTime(container) => {
55				let mut result = TemporalContainer::with_capacity(row_count);
56
57				for i in 0..row_count {
58					if let Some(dt) = container.get(i) {
59						result.push(dt.date());
60					} else {
61						result.push_default();
62					}
63				}
64
65				ColumnData::Date(result)
66			}
67			other => {
68				return Err(FunctionError::InvalidArgumentType {
69					function: ctx.fragment.clone(),
70					argument_index: 0,
71					expected: vec![Type::DateTime],
72					actual: other.get_type(),
73				});
74			}
75		};
76
77		let final_data = if let Some(bv) = bitvec {
78			ColumnData::Option {
79				inner: Box::new(result_data),
80				bitvec: bv.clone(),
81			}
82		} else {
83			result_data
84		};
85
86		Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), final_data)]))
87	}
88}
reifydb_routine/function/datetime/date.rs

reifydb_routine/function/datetime/
date.rs
