inline void execute(query_context& context) {
size_t i = 0;
while(i < m_len) {
auto ret = context.get_output_buffer();
size_t len = std::min(m_len - i, context.block_size());
ret->resize(1, len);
for (auto& value: *(ret->get_columns()[0])) value = m_value;
context.emit(ret);
i += len;
}
}
inline void execute(query_context& context) {
if (!m_reader) m_reader = m_source->get_reader();
auto start = m_begin_index;
auto block_size = context.block_size();
bool skip_next_block = false;
emit_state state = context.initial_state();
while (start != m_end_index) {
auto rows = context.get_output_buffer();
auto end = std::min(start + block_size, m_end_index);
if (skip_next_block == false) {
m_reader->read_rows(start, end, *rows);
state = context.emit(rows);
} else {
state = context.emit(nullptr);
}
skip_next_block = state == emit_state::SKIP_NEXT_BLOCK;
start = end;
}
}