forked from databendlabs/databend
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtypes.rs
More file actions
139 lines (130 loc) · 5 KB
/
Copy pathtypes.rs
File metadata and controls
139 lines (130 loc) · 5 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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
// Copyright 2021 Datafuse Labs
//
// 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 databend_common_expression::types::decimal::DecimalSize;
use databend_common_expression::types::DataType;
use databend_common_expression::types::NumberDataType;
use rand::Rng;
use crate::sql_gen::SqlGenerator;
impl<R: Rng> SqlGenerator<'_, R> {
pub(crate) fn gen_data_type(&mut self) -> DataType {
if self.rng.gen_bool(0.8) {
self.gen_simple_data_type()
} else {
self.gen_nested_data_type()
}
}
pub(crate) fn gen_all_number_data_type(&mut self) -> DataType {
if self.rng.gen_bool(0.8) {
self.gen_number_data_type()
} else {
self.gen_decimal_data_type()
}
}
pub(crate) fn gen_number_data_type(&mut self) -> DataType {
match self.rng.gen_range(0..=20) {
0 => DataType::Number(NumberDataType::UInt8),
1 => DataType::Number(NumberDataType::UInt16),
2 => DataType::Number(NumberDataType::UInt32),
3..=8 => DataType::Number(NumberDataType::UInt64),
9 => DataType::Number(NumberDataType::Int8),
10 => DataType::Number(NumberDataType::Int16),
11 => DataType::Number(NumberDataType::Int32),
12..=13 => DataType::Number(NumberDataType::Int64),
14 => DataType::Number(NumberDataType::Float32),
15..=20 => DataType::Number(NumberDataType::Float64),
_ => unreachable!(),
}
}
pub(crate) fn gen_decimal_data_type(&mut self) -> DataType {
let precision = self.rng.gen_range(1..=76);
let scale = self.rng.gen_range(0..=precision);
let size = DecimalSize::new_unchecked(precision, scale);
DataType::Decimal(size)
}
pub(crate) fn gen_simple_common_data_type(&mut self) -> DataType {
let ty = match self.rng.gen_range(0..=7) {
0 => DataType::String,
1..=5 => self.gen_all_number_data_type(),
6 => DataType::Timestamp,
7 => DataType::Date,
_ => unreachable!(),
};
if self.rng.gen_bool(0.5) {
ty
} else {
DataType::Nullable(Box::new(ty))
}
}
pub(crate) fn gen_simple_data_type(&mut self) -> DataType {
match self.rng.gen_range(0..=13) {
0 => DataType::Null,
1 => DataType::Boolean,
2 => DataType::String,
3..=5 => self.gen_all_number_data_type(),
6 => DataType::Timestamp,
7 => DataType::Date,
8 => DataType::Bitmap,
9 => DataType::Variant,
10 => DataType::Binary,
11 => DataType::Geometry,
12 => DataType::Interval,
13 => {
let inner_ty = self.gen_simple_data_type();
if !inner_ty.is_nullable_or_null() {
DataType::Nullable(Box::new(inner_ty))
} else {
inner_ty
}
}
_ => unreachable!(),
}
}
pub(crate) fn gen_nested_data_type(&mut self) -> DataType {
match self.rng.gen_range(0..=8) {
0 => DataType::EmptyArray,
1 => DataType::EmptyMap,
2..=3 => DataType::Array(Box::new(self.gen_data_type())),
4..=5 => {
let key_ty = DataType::String;
let val_ty = match self.rng.gen_range(0..=3) {
0 => DataType::String,
1 => DataType::Number(NumberDataType::UInt64),
2 => DataType::Number(NumberDataType::Int64),
3 => DataType::Number(NumberDataType::Float64),
// TODO: boolean, date, timestamp
_ => unreachable!(),
};
let inner_ty = DataType::Tuple(vec![key_ty, val_ty]);
DataType::Map(Box::new(inner_ty))
}
6..=7 => {
let len = self.rng.gen_range(1..=5);
let mut inner_tys = Vec::with_capacity(len);
for _ in 0..len {
inner_tys.push(self.gen_data_type());
}
DataType::Tuple(inner_tys)
}
8 => {
let inner_ty = self.gen_nested_data_type();
if !inner_ty.is_nullable_or_null() {
DataType::Nullable(Box::new(inner_ty))
} else {
inner_ty
}
}
_ => unreachable!(),
}
}
}