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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
use mz_avro::schema::{SchemaPiece, SchemaPieceOrNamed};
mod decode;
mod encode;
pub mod envelope_cdc_v2;
mod schema;
pub use envelope_cdc_v2 as cdc_v2;
pub use self::decode::{Decoder, DiffPair};
pub use self::encode::{
encode_datums_as_avro, encode_debezium_transaction_unchecked, get_debezium_transaction_schema,
AvroEncoder, AvroSchemaGenerator,
};
pub use self::schema::{parse_schema, schema_to_relationdesc, ConfluentAvroResolver};
fn is_null(schema: &SchemaPieceOrNamed) -> bool {
matches!(schema, SchemaPieceOrNamed::Piece(SchemaPiece::Null))
}
#[cfg(test)]
mod tests {
use chrono::{DateTime, NaiveDate, NaiveDateTime, NaiveTime, Utc};
use ordered_float::OrderedFloat;
use mz_avro::types::{DecimalValue, Value};
use repr::adt::numeric;
use repr::{Datum, RelationDesc, ScalarType};
use super::*;
#[test]
fn record_without_fields() -> anyhow::Result<()> {
let schema = r#"{
"type": "record",
"name": "test",
"fields": []
}"#;
let desc = schema_to_relationdesc(parse_schema(schema)?)?;
assert_eq!(desc.arity(), 0, "empty record produced rows");
Ok(())
}
#[test]
fn basic_record() -> anyhow::Result<()> {
let schema = r#"{
"type": "record",
"name": "test",
"fields": [
{ "name": "f1", "type": "int" },
{ "name": "f2", "type": "string" }
]
}"#;
let desc = schema_to_relationdesc(parse_schema(schema)?)?;
let expected_desc = RelationDesc::empty()
.with_column("f1", ScalarType::Int32.nullable(false))
.with_column("f2", ScalarType::String.nullable(false));
assert_eq!(desc, expected_desc);
Ok(())
}
#[test]
fn test_diff_pair_to_avro_primitive_types() -> anyhow::Result<()> {
use numeric::Numeric;
let date = NaiveDate::from_ymd(2020, 1, 8);
let date_time = NaiveDateTime::new(date, NaiveTime::from_hms(1, 1, 1));
let bytes: Vec<u8> = vec![0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10];
let string = String::from("test");
let valid_pairings = vec![
(ScalarType::Bool, Datum::True, Value::Boolean(true)),
(ScalarType::Bool, Datum::False, Value::Boolean(false)),
(ScalarType::Int32, Datum::Int32(1), Value::Int(1)),
(ScalarType::Int64, Datum::Int64(1), Value::Long(1)),
(
ScalarType::Float32,
Datum::Float32(OrderedFloat::from(1f32)),
Value::Float(1f32),
),
(
ScalarType::Float64,
Datum::Float64(OrderedFloat::from(1f64)),
Value::Double(1f64),
),
(ScalarType::Date, Datum::Date(date), Value::Date(date)),
(
ScalarType::Timestamp,
Datum::Timestamp(date_time),
Value::Timestamp(date_time),
),
(
ScalarType::TimestampTz,
Datum::TimestampTz(DateTime::from_utc(date_time, Utc)),
Value::Timestamp(date_time),
),
(
ScalarType::Numeric { scale: Some(1) },
Datum::from(Numeric::from(1)),
Value::Decimal(DecimalValue {
unscaled: bytes.clone(),
precision: 39,
scale: 1,
}),
),
(
ScalarType::Numeric { scale: None },
Datum::from(Numeric::from(1)),
Value::Decimal(DecimalValue {
unscaled: vec![
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 240, 80, 254, 147, 137,
67, 172, 196, 95, 101, 86, 128, 0, 0, 0, 0,
],
precision: 81,
scale: 39,
}),
),
(
ScalarType::Bytes,
Datum::Bytes(&bytes),
Value::Bytes(bytes.clone()),
),
(
ScalarType::String,
Datum::String(&string),
Value::String(string.clone()),
),
];
for (typ, datum, expected) in valid_pairings {
let desc = RelationDesc::empty().with_column("column1", typ.nullable(false));
let schema_generator = AvroSchemaGenerator::new(None, None, None, desc, false);
let avro_value =
encode_datums_as_avro(std::iter::once(datum), schema_generator.value_columns());
assert_eq!(
Value::Record(vec![("column1".into(), expected)]),
avro_value
);
}
Ok(())
}
}