Repository navigation
Expand file tree
/
Copy pathdata_type.rs
More file actions
124 lines (120 loc) · 4.14 KB
/
Copy pathdata_type.rs
File metadata and controls
124 lines (120 loc) · 4.14 KB
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
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use super::ObjectName;
use std::fmt;
/// SQL data types
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum DataType {
/// Fixed-length character type e.g. CHAR(10)
Char(Option<u64>),
/// Variable-length character type e.g. VARCHAR(10)
Varchar(Option<u64>),
/// Uuid type
Uuid,
/// Large character object e.g. CLOB(1000)
Clob(u64),
/// Fixed-length binary type e.g. BINARY(10)
Binary(u64),
/// Variable-length binary type e.g. VARBINARY(10)
Varbinary(u64),
/// Large binary object e.g. BLOB(1000)
Blob(u64),
/// Decimal type with optional precision and scale e.g. DECIMAL(10,2)
Decimal(Option<u64>, Option<u64>),
/// Floating point with optional precision e.g. FLOAT(8)
Float(Option<u64>),
/// Small integer
SmallInt,
/// Integer
Int,
/// Big integer
BigInt,
/// Floating point e.g. REAL
Real,
/// Double e.g. DOUBLE PRECISION
Double,
/// Boolean
Boolean,
/// Date
Date,
/// Time without time zone
Time,
/// Time with time zone
TimeTz,
/// Timestamp without time zone
Timestamp,
/// Timestamp with time zone
TimestampTz,
/// Interval
Interval,
/// Regclass used in postgresql serial
Regclass,
/// Text
Text,
/// Bytea
Bytea,
/// Custom type such as enums
Custom(ObjectName),
/// Arrays
Array(Box<DataType>),
}
impl fmt::Display for DataType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
DataType::Char(size) => format_type_with_optional_length(f, "char", size),
DataType::Varchar(size) => {
format_type_with_optional_length(f, "character varying", size)
}
DataType::Uuid => write!(f, "uuid"),
DataType::Clob(size) => write!(f, "clob({})", size),
DataType::Binary(size) => write!(f, "binary({})", size),
DataType::Varbinary(size) => write!(f, "varbinary({})", size),
DataType::Blob(size) => write!(f, "blob({})", size),
DataType::Decimal(precision, scale) => {
if let Some(scale) = scale {
write!(f, "numeric({},{})", precision.unwrap(), scale)
} else {
format_type_with_optional_length(f, "numeric", precision)
}
}
DataType::Float(size) => format_type_with_optional_length(f, "float", size),
DataType::SmallInt => write!(f, "smallint"),
DataType::Int => write!(f, "int"),
DataType::BigInt => write!(f, "bigint"),
DataType::Real => write!(f, "real"),
DataType::Double => write!(f, "double"),
DataType::Boolean => write!(f, "boolean"),
DataType::Date => write!(f, "date"),
DataType::Time => write!(f, "time"),
DataType::TimeTz => write!(f, "time with time zone"),
DataType::Timestamp => write!(f, "timestamp"),
DataType::TimestampTz => write!(f, "timestamp with time zone"),
DataType::Interval => write!(f, "interval"),
DataType::Regclass => write!(f, "regclass"),
DataType::Text => write!(f, "text"),
DataType::Bytea => write!(f, "bytea"),
DataType::Array(ty) => write!(f, "{}[]", ty),
DataType::Custom(ty) => write!(f, "{}", ty),
}
}
}
fn format_type_with_optional_length(
f: &mut fmt::Formatter,
sql_type: &'static str,
len: &Option<u64>,
) -> fmt::Result {
write!(f, "{}", sql_type)?;
if let Some(len) = len {
write!(f, "({})", len)?;
}
Ok(())
}