void SQLiteStatement::getColumnBlobAsVector(int col, Vector<char>& result)
{
    ASSERT(col >= 0);

    if (!m_statement && prepareAndStep() != SQLITE_ROW) {
        result.clear();
        return;
    }

    if (columnCount() <= col) {
        result.clear();
        return;
    }

    const void* blob = sqlite3_column_blob(m_statement, col);
    if (!blob) {
        result.clear();
        return;
    }

    int size = sqlite3_column_bytes(m_statement, col);
    result.resize((size_t)size);
    for (int i = 0; i < size; ++i)
        result[i] = (static_cast<const unsigned char*>(blob))[i];
}

String SQLiteStatement::getColumnText(int col)
{
    ASSERT(col >= 0);
    if (!m_statement)
        if (prepareAndStep() != SQLITE_ROW)
            return String();
    if (columnCount() <= col)
        return String();
    return String(reinterpret_cast<const UChar*>(sqlite3_column_text16(m_statement, col)), sqlite3_column_bytes16(m_statement, col) / sizeof(UChar));
}