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MySQL fixes/additions/improvements

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- fixed GH #187: MySQL: allow access to the underlying connection handle
- added GH #186: MySQL: support for MYSQL_SECURE_AUTH
- fixed GH #174: MySQL: 4GB allocated when reading any largetext or
largeblob field
This commit is contained in:
Aleksandar Fabijanic
2013-06-09 12:33:38 -05:00
parent f6d9e926d5
commit b95ec4fe53
24 changed files with 302 additions and 32 deletions
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16
Data/MySQL/src/ResultMetadata.cpp
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@@ -189,11 +189,15 @@ void ResultMetadata::init(MYSQL_STMT* stmt)
{for (std::size_t i = 0; i < count; i++)
{
unsigned long size = fieldSize(fields[i]);
unsigned long zero = 0;
if (size == ~zero) size = 0;
_columns.push_back(MetaColumn(
i, // position
fields[i].name, // name
fieldType(fields[i]), // type
fieldSize(fields[i]), // length
size, // length
0, // TODO: precision
!IS_NOT_NULL(fields[i].flags) // nullable
));
@@ -208,19 +212,19 @@ void ResultMetadata::init(MYSQL_STMT* stmt)
std::size_t offset = 0;
{for (std::size_t i = 0; i < count; i++)
for (std::size_t i = 0; i < count; i++)
{
std::memset(&_row[i], 0, sizeof(MYSQL_BIND));
unsigned int len = static_cast<unsigned int>(_columns[i].length());
_row[i].buffer_type = fields[i].type;
_row[i].buffer_length = static_cast<unsigned int>(_columns[i].length());
_row[i].buffer = &_buffer[0] + offset;
_row[i].buffer_length = len;
_row[i].buffer = (len > 0) ? (&_buffer[0] + offset) : 0;
_row[i].length = &_lengths[i];
_row[i].is_null = &_isNull[i];
_row[i].is_unsigned = (fields[i].flags & UNSIGNED_FLAG) > 0;
offset += _row[i].buffer_length;
}}
}
}
std::size_t ResultMetadata::columnsReturned() const