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Core/DataStores: Added temporary workaround for buggy db2 metadata in build 10.0.7.48999

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Shauren
2023-04-18 19:35:49 +02:00
parent ffc06b27d0
commit 25a1d436c8
1 changed files with 25 additions and 4 deletions
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29
src/common/DataStores/DB2FileLoader.cpp
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@@ -26,6 +26,10 @@
#include <utility>
#include <cstring>
class Temporary_10_0_7_metadata_bug_workaround : public std::exception
{
};
enum class DB2ColumnCompression : uint32
{
None,
@@ -226,7 +230,7 @@ public:
char const* GetExpectedSignMismatchReason(uint32 field) const override;
private:
void FillParentLookup(char* dataTable);
void FillParentLookup(char* dataTable, char** indexTable);
uint32 GetRecordSection(uint32 recordNumber) const;
unsigned char const* GetRawRecordData(uint32 recordNumber, uint32 const* section) const override;
uint32 RecordGetId(uint8 const* record, uint32 recordIndex) const override;
@@ -427,6 +431,8 @@ char* DB2FileLoaderRegularImpl::AutoProduceData(uint32& indexTableSize, char**&
++fieldIndex;
}
try
{
for (uint32 x = 0; x < _header->FieldCount; ++x)
{
for (uint32 z = 0; z < _loadInfo->Meta->Fields[x].ArraySize; ++z)
@@ -498,11 +504,17 @@ char* DB2FileLoaderRegularImpl::AutoProduceData(uint32& indexTableSize, char**&
++fieldIndex;
}
}
}
catch (Temporary_10_0_7_metadata_bug_workaround const&)
{
// pretend this record doesnt exist, has overflown column
indexTable[indexVal] = nullptr;
}
}
}
if (!_parentIndexes.empty())
FillParentLookup(dataTable);
FillParentLookup(dataTable, indexTable);
return dataTable;
}
@@ -638,7 +650,7 @@ void DB2FileLoaderRegularImpl::AutoProduceRecordCopies(uint32 records, char** in
}
}
void DB2FileLoaderRegularImpl::FillParentLookup(char* dataTable)
void DB2FileLoaderRegularImpl::FillParentLookup(char* dataTable, char** indexTable)
{
int32 parentIdOffset = _loadInfo->Meta->GetParentIndexFieldOffset();
uint32 recordSize = _loadInfo->Meta->GetRecordSize();
@@ -651,7 +663,13 @@ void DB2FileLoaderRegularImpl::FillParentLookup(char* dataTable)
for (std::size_t j = 0; j < _parentIndexes[i][0].Entries.size(); ++j)
{
uint32 parentId = _parentIndexes[i][0].Entries[j].ParentId;
char* recordData = &dataTable[(_parentIndexes[i][0].Entries[j].RecordIndex + recordIndexOffset) * recordSize];
uint32 recordIndex = _parentIndexes[i][0].Entries[j].RecordIndex + recordIndexOffset;
char* recordData = &dataTable[recordIndex * recordSize];
// temporary workaround
uint32 id = GetRecord(recordIndex).GetId();
if (!indexTable[id])
continue;
switch (_loadInfo->Meta->Fields[_loadInfo->Meta->ParentIndexField].Type)
{
@@ -816,6 +834,9 @@ T DB2FileLoaderRegularImpl::RecordGetVarInt(uint8 const* record, uint32 field, u
EndianConvert(immediateValue);
T value;
memcpy(&value, &immediateValue, std::min(sizeof(T), sizeof(immediateValue)));
if constexpr (std::is_integral_v<T>)
if (_columnMeta[field].CompressionData.immediate.BitWidth > sizeof(T) * 8 && int64(value) != int64(immediateValue))
throw Temporary_10_0_7_metadata_bug_workaround();
return value;
}
case DB2ColumnCompression::CommonData: