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#3166: Fix PostgresSQL BLOB extractor

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This commit is contained in:
Günter Obiltschnig 2021-06-15 07:22:18 +02:00
parent f6a0ede79a
commit 8bf57d48e0
1 changed files with 5 additions and 4 deletions
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9
Data/PostgreSQL/src/Extractor.cpp
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@ -316,16 +316,17 @@ bool Extractor::extract(std::size_t pos, Poco::Data::BLOB& val)
// //
const char * pBLOB = reinterpret_cast<const char*>(outputParameter.pData()); const char * pBLOB = reinterpret_cast<const char*>(outputParameter.pData());
std::size_t BLOBSize = outputParameter.size(); std::size_t blobSize = outputParameter.size();
val = Poco::Data::BLOB(); // don't share contents with _default
if ( '\\' == pBLOB[0] if ( '\\' == pBLOB[0]
&& 'x' == pBLOB[1] // preamble to BYTEA data format in text form is \x && 'x' == pBLOB[1] // preamble to BYTEA data format in text form is \x
) )
{ {
BLOBSize -= 2; // lose the preamble blobSize -= 2; // lose the preamble
BLOBSize /= 2; // each byte is encoded as two text characters blobSize /= 2; // each byte is encoded as two text characters
for (int i = 0; i < BLOBSize * 2; i += 2) for (int i = 0; i < blobSize * 2; i += 2)
{ {
std::string buffer(&pBLOB[i + 2], 2); std::string buffer(&pBLOB[i + 2], 2);
unsigned int binaryBuffer = 0; unsigned int binaryBuffer = 0;