blob: 761bf0bbb1e818c3ebac2cad6d0e4c2a7d7b6cfc (
plain)
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
|
#include "pq-binarycolumn.h"
#include "column.h"
#include "dbTypes.h"
#include "pq-column.h"
#include <bit>
#include <cstdint>
#include <endian.h>
#include <error.h>
#include <server/catalog/pg_type_d.h>
PQ::BinaryColumn::BinaryColumn(const PQ::SelectBase * s, unsigned int f) : PQ::Column(s, f) { }
template<std::integral T>
inline T
PQ::BinaryColumn::valueAs() const
{
T v {};
std::memcpy(&v, value(), sizeof(T));
if constexpr (std::endian::native != std::endian::big && sizeof(T) > 1) {
return std::byteswap(v);
}
return v;
}
void
PQ::BinaryColumn::apply(DB::HandleField & h) const
{
if (isNull()) {
h.null();
return;
}
switch (oid) {
case CHAROID:
case VARCHAROID:
case TEXTOID:
case XMLOID:
h.string({value(), length()});
break;
case BOOLOID:
h.boolean(valueAs<bool>());
break;
case INT2OID:
h.integer(valueAs<int16_t>());
break;
case INT4OID:
h.integer(valueAs<int32_t>());
break;
case INT8OID:
h.integer(valueAs<int64_t>());
break;
case BYTEAOID:
h.blob(DB::Blob(value(), length()));
break;
default:
throw DB::ColumnTypeNotSupported();
}
}
|
