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#3153: Poco::Data::ODBC [N]VARCHAR(MAX) wrong maxDataSize() result

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This commit is contained in:
Günter Obiltschnig
2020-11-27 19:32:00 +01:00
parent dd3fcc0fd1
commit 7380087176
1 changed files with 11 additions and 11 deletions
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22
Data/ODBC/src/Preparator.cpp
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@@ -25,10 +25,10 @@ namespace Data {
namespace ODBC {
Preparator::Preparator(const StatementHandle& rStmt,
const std::string& statement,
Preparator::Preparator(const StatementHandle& rStmt,
const std::string& statement,
std::size_t maxFieldSize,
DataExtraction dataExtraction):
DataExtraction dataExtraction):
_rStmt(rStmt),
_maxFieldSize(maxFieldSize),
_dataExtraction(dataExtraction)
@@ -39,7 +39,7 @@ Preparator::Preparator(const StatementHandle& rStmt,
}
Preparator::Preparator(const Preparator& other):
Preparator::Preparator(const Preparator& other):
_rStmt(other._rStmt),
_maxFieldSize(other._maxFieldSize),
_dataExtraction(other._dataExtraction)
@@ -151,14 +151,14 @@ std::size_t Preparator::maxDataSize(std::size_t pos) const
std::size_t sz = 0;
std::size_t maxsz = getMaxFieldSize();
try
try
{
ODBCMetaColumn mc(_rStmt, pos);
sz = mc.length();
// accomodate for terminating zero (non-bulk only!)
MetaColumn::ColumnDataType type = mc.type();
if (!isBulk() && ((ODBCMetaColumn::FDT_WSTRING == type) || (ODBCMetaColumn::FDT_STRING == type))) ++sz;
if (sz && !isBulk() && ((ODBCMetaColumn::FDT_WSTRING == type) || (ODBCMetaColumn::FDT_STRING == type))) ++sz;
}
catch (StatementException&) { }
@@ -194,11 +194,11 @@ void Preparator::prepareBoolArray(std::size_t pos, SQLSMALLINT valueType, std::s
_lenLengths[pos].resize(length);
_varLengthArrays.insert(IndexMap::value_type(pos, DT_BOOL_ARRAY));
if (Utility::isError(SQLBindCol(_rStmt,
(SQLUSMALLINT) pos + 1,
valueType,
(SQLPOINTER) pArray,
(SQLINTEGER) sizeof(bool),
if (Utility::isError(SQLBindCol(_rStmt,
(SQLUSMALLINT) pos + 1,
valueType,
(SQLPOINTER) pArray,
(SQLINTEGER) sizeof(bool),
&_lenLengths[pos][0])))
{
throw StatementException(_rStmt, "SQLBindCol()");