public ReadOnlySpan <byte> ColumnBlob(int index)
{
// https://www.sqlite.org/c3ref/column_blob.html
// "The safest policy is to invoke these routines in one of the following ways:"
// "sqlite3_column_blob() followed by sqlite3_column_bytes()"
var pointer = _sqlite3.ColumnBlob(_statement, index);
var byteCount = _sqlite3.ColumnBytes(_statement, index);
if (byteCount > 0 && pointer.IsValid())
{
unsafe
{
return(new ReadOnlySpan <byte>(
pointer.ToPointer(),
byteCount));
}
}
return(ReadOnlySpan <byte> .Empty);
}
