pgx 0.7.4

pgx: A Rust framework for creating Postgres extensions
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132

use std::cmp::Ordering;

use crate::{direct_function_call, pg_sys, AnyNumeric, Numeric};

impl PartialEq<AnyNumeric> for AnyNumeric {
    /// Postgres implementation detail:  Unlike in Rust, Postgres considers `NaN` as equal
    #[inline]
    fn eq(&self, other: &AnyNumeric) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_eq, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }

    #[inline]
    fn ne(&self, other: &AnyNumeric) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_ne, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }
}

/// Postgres implementation detail:  Unlike in Rust, Postgres considers `NaN` as equal
impl Eq for AnyNumeric {}

impl PartialOrd for AnyNumeric {
    /// Postgres implementation detail:  Unlike in Rust, Postgres considers `NaN` as equal
    #[inline]
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }

    #[inline]
    fn lt(&self, other: &Self) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_lt, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }

    #[inline]
    fn le(&self, other: &Self) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_le, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }

    #[inline]
    fn gt(&self, other: &Self) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_gt, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }

    #[inline]
    fn ge(&self, other: &Self) -> bool {
        unsafe {
            direct_function_call(pg_sys::numeric_ge, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        }
    }
}

impl Ord for AnyNumeric {
    #[inline]
    fn cmp(&self, other: &Self) -> Ordering {
        let cmp: i32 = unsafe {
            direct_function_call(pg_sys::numeric_cmp, vec![self.as_datum(), other.as_datum()])
                .unwrap()
        };
        if cmp < 0 {
            Ordering::Less
        } else if cmp > 0 {
            Ordering::Greater
        } else {
            Ordering::Equal
        }
    }
}

impl<const P: u32, const S: u32> PartialEq for Numeric<P, S> {
    /// Postgres implementation detail:  Unlike in Rust, Postgres considers `NaN` as equal
    #[inline]
    fn eq(&self, other: &Self) -> bool {
        self.as_anynumeric().eq(other.as_anynumeric())
    }

    #[inline]
    fn ne(&self, other: &Self) -> bool {
        self.as_anynumeric().ne(other.as_anynumeric())
    }
}

/// Postgres implementation detail:  Unlike in Rust, Postgres considers `NaN` as equal
impl<const P: u32, const S: u32> Eq for Numeric<P, S> {}

impl<const P: u32, const S: u32> PartialOrd for Numeric<P, S> {
    #[inline]
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        self.as_anynumeric().partial_cmp(other.as_anynumeric())
    }

    #[inline]
    fn lt(&self, other: &Self) -> bool {
        self.as_anynumeric().lt(other.as_anynumeric())
    }

    #[inline]
    fn le(&self, other: &Self) -> bool {
        self.as_anynumeric().le(other.as_anynumeric())
    }

    #[inline]
    fn gt(&self, other: &Self) -> bool {
        self.as_anynumeric().gt(other.as_anynumeric())
    }

    #[inline]
    fn ge(&self, other: &Self) -> bool {
        self.as_anynumeric().ge(other.as_anynumeric())
    }
}

impl<const P: u32, const S: u32> Ord for Numeric<P, S> {
    #[inline]
    fn cmp(&self, other: &Self) -> Ordering {
        self.as_anynumeric().cmp(other.as_anynumeric())
    }
}