reifydb_routine/function/math/
floor.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use num_traits::ToPrimitive;
5use reifydb_core::value::column::{Column, columns::Columns, data::ColumnData};
6use reifydb_type::value::{
7	container::number::NumberContainer,
8	decimal::Decimal,
9	r#type::{Type, input_types::InputTypes},
10};
11
12use crate::function::{Function, FunctionCapability, FunctionContext, FunctionInfo, error::FunctionError};
13
14pub struct Floor {
15	info: FunctionInfo,
16}
17
18impl Default for Floor {
19	fn default() -> Self {
20		Self::new()
21	}
22}
23
24impl Floor {
25	pub fn new() -> Self {
26		Self {
27			info: FunctionInfo::new("math::floor"),
28		}
29	}
30}
31
32impl Function for Floor {
33	fn info(&self) -> &FunctionInfo {
34		&self.info
35	}
36
37	fn capabilities(&self) -> &[FunctionCapability] {
38		&[FunctionCapability::Scalar]
39	}
40
41	fn return_type(&self, input_types: &[Type]) -> Type {
42		input_types.first().cloned().unwrap_or(Type::Float8)
43	}
44
45	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
46		if args.len() != 1 {
47			return Err(FunctionError::ArityMismatch {
48				function: ctx.fragment.clone(),
49				expected: 1,
50				actual: args.len(),
51			});
52		}
53
54		let column = &args[0];
55		let (data, bitvec) = column.data().unwrap_option();
56		let row_count = data.len();
57
58		let result_data = match data {
59			ColumnData::Float4(container) => {
60				let mut data = Vec::with_capacity(row_count);
61				let mut res_bitvec = Vec::with_capacity(row_count);
62				for i in 0..row_count {
63					if let Some(&value) = container.get(i) {
64						data.push(value.floor());
65						res_bitvec.push(true);
66					} else {
67						data.push(0.0);
68						res_bitvec.push(false);
69					}
70				}
71				ColumnData::float4_with_bitvec(data, res_bitvec)
72			}
73			ColumnData::Float8(container) => {
74				let mut data = Vec::with_capacity(row_count);
75				let mut res_bitvec = Vec::with_capacity(row_count);
76				for i in 0..row_count {
77					if let Some(&value) = container.get(i) {
78						data.push(value.floor());
79						res_bitvec.push(true);
80					} else {
81						data.push(0.0);
82						res_bitvec.push(false);
83					}
84				}
85				ColumnData::float8_with_bitvec(data, res_bitvec)
86			}
87			ColumnData::Decimal {
88				container,
89				precision,
90				scale,
91			} => {
92				let mut data = Vec::with_capacity(row_count);
93				for i in 0..row_count {
94					if let Some(value) = container.get(i) {
95						let f = value.0.to_f64().unwrap_or(0.0);
96						data.push(Decimal::from(f.floor()));
97					} else {
98						data.push(Decimal::default());
99					}
100				}
101				ColumnData::Decimal {
102					container: NumberContainer::new(data),
103					precision: *precision,
104					scale: *scale,
105				}
106			}
107			other if other.get_type().is_number() => data.clone(),
108			other => {
109				return Err(FunctionError::InvalidArgumentType {
110					function: ctx.fragment.clone(),
111					argument_index: 0,
112					expected: InputTypes::numeric().expected_at(0).to_vec(),
113					actual: other.get_type(),
114				});
115			}
116		};
117
118		let final_data = if let Some(bv) = bitvec {
119			ColumnData::Option {
120				inner: Box::new(result_data),
121				bitvec: bv.clone(),
122			}
123		} else {
124			result_data
125		};
126
127		Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), final_data)]))
128	}
129}
reifydb_routine/function/math/floor.rs

reifydb_routine/function/math/
floor.rs
