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
165
166
167
168
169
170
171
use super::{
Connection, Put, PutRequest, Result, TransactWriteItem, Value, WriteRequest, db, stmt,
};
use std::collections::HashMap;
use toasty_core::driver::Response;
impl Connection {
pub(crate) async fn exec_insert(
&mut self,
schema: &db::Schema,
insert: stmt::Insert,
) -> Result<Response> {
assert!(insert.returning.is_none());
let insert_table = insert.target.as_table_unwrap();
let table = &schema.table(insert_table.table);
let unique_indices = table
.indices
.iter()
.filter(|index| {
if !index.primary_key && index.unique {
// Don't update the index if the value is not included.
index.columns.iter().all(|index_column| {
let column = schema.column(index_column.column);
insert_table.columns.contains(&column.id)
})
} else {
false
}
})
.collect::<Vec<_>>();
// Create the item map
let mut insert_items = vec![];
let source = insert.source.body.into_values();
for row in source.rows {
let mut items = HashMap::new();
for (i, column_id) in insert_table.columns.iter().enumerate() {
let column = schema.column(*column_id);
let entry = row.entry(i).unwrap();
let value = entry.as_value_unwrap();
if !value.is_null() {
items.insert(column.name.clone(), Value::from(value.clone()).to_ddb());
}
}
insert_items.push(items);
}
let count = insert_items.len();
match &unique_indices[..] {
[] => {
if insert_items.len() == 1 {
tracing::trace!(table_name = %table.name, "inserting single item");
let insert_items = insert_items.into_iter().next().unwrap();
self.client
.put_item()
.table_name(&table.name)
.set_item(Some(insert_items))
.send()
.await
.map_err(toasty_core::Error::driver_operation_failed)?;
} else {
tracing::trace!(table_name = %table.name, item_count = insert_items.len(), "batch inserting items");
let mut request_items = HashMap::new();
request_items.insert(
table.name.clone(),
insert_items
.into_iter()
.map(|insert_item| {
WriteRequest::builder()
.put_request(
PutRequest::builder()
.set_item(Some(insert_item))
.build()
.unwrap(),
)
.build()
})
.collect(),
);
self.client
.batch_write_item()
.set_request_items(Some(request_items))
.send()
.await
.map_err(toasty_core::Error::driver_operation_failed)?;
}
}
[index] => {
let mut transact_items = vec![];
for insert_items in insert_items {
let mut index_insert_items = HashMap::new();
let mut expression_names = HashMap::new();
let mut condition_expression = String::new();
let mut nullable = false;
for index_column in &index.columns {
let column = schema.column(index_column.column);
if !insert_items.contains_key(&column.name) {
nullable = true;
break;
}
index_insert_items
.insert(column.name.clone(), insert_items[&column.name].clone());
if condition_expression.is_empty() {
let name = format!("#{}", column.id.index);
condition_expression = format!("attribute_not_exists({name})");
expression_names.insert(name, column.name.clone());
}
}
if !nullable {
// Add primary key values
for column in table.primary_key_columns() {
let name = &column.name;
index_insert_items.insert(name.clone(), insert_items[name].clone());
}
transact_items.push(
TransactWriteItem::builder()
.put(
Put::builder()
.table_name(&index.name)
.set_item(Some(index_insert_items))
.condition_expression(condition_expression)
.set_expression_attribute_names(Some(expression_names))
.build()
.unwrap(),
)
.build(),
);
}
transact_items.push(
TransactWriteItem::builder()
.put(
Put::builder()
.table_name(&table.name)
.set_item(Some(insert_items))
.build()
.unwrap(),
)
.build(),
);
}
self.client
.transact_write_items()
.set_transact_items(Some(transact_items))
.send()
.await
.map_err(toasty_core::Error::driver_operation_failed)?;
}
_ => todo!(),
}
Ok(Response::count(count as _))
}
}