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msdasql: IColumnsRowset::GetAvailableColumns return 3 meta columns to allow updating of a row.
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@ -1202,6 +1202,7 @@ static ULONG WINAPI column_rs_Release(IColumnsRowset *iface)
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static HRESULT WINAPI column_rs_GetAvailableColumns(IColumnsRowset *iface, DBORDINAL *count, DBID **columns)
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{
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struct msdasql_rowset *rowset = impl_from_IColumnsRowset( iface );
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const DBORDINAL extra_columns = 3;
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TRACE("%p, %p, %p\n", rowset, count, columns);
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@ -1209,7 +1210,14 @@ static HRESULT WINAPI column_rs_GetAvailableColumns(IColumnsRowset *iface, DBORD
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return E_INVALIDARG;
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*count = 0;
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*columns = NULL;
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*columns = CoTaskMemAlloc(sizeof(DBID) * extra_columns);
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if (!*columns)
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return E_OUTOFMEMORY;
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*count = extra_columns;
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*columns[0] = DBCOLUMN_BASETABLENAME;
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*columns[1] = DBCOLUMN_BASECOLUMNNAME;
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*columns[2] = DBCOLUMN_KEYCOLUMN;
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return S_OK;
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}
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