nestedLoopJoin - 2023.2 English

Vitis Libraries

Release Date
2023-12-20
Version
2023.2 English
#include "xf_database/nested_loop_join.hpp"
template <
    int CMP_NUM,
    typename KEY_T,
    typename LEFT_FIELD_T,
    typename RIGHT_FIELD_T
    >
void nestedLoopJoin (
    hls::stream <KEY_T>& strm_in_left_key,
    hls::stream <LEFT_FIELD_T>& strm_in_left_field,
    hls::stream <bool>& strm_in_left_e,
    hls::stream <KEY_T>& strm_in_right_key,
    hls::stream <RIGHT_FIELD_T>& strm_in_right_field,
    hls::stream <bool>& strm_in_right_e,
    hls::stream <KEY_T> strm_out_left_key [CMP_NUM],
    hls::stream <LEFT_FIELD_T> strm_out_left_field [CMP_NUM],
    hls::stream <KEY_T> strm_out_right_key [CMP_NUM],
    hls::stream <RIGHT_FIELD_T> strm_out_right_field [CMP_NUM],
    hls::stream <bool> strm_out_e [CMP_NUM]
    )

Nested loop join function.

Parameters:

CMP_NUM number of key compraring unit in parallel
KEY_T the type of the key of left table
LEFT_FIELD_T the type of the field of left table
RIGHT_FIELD_T the type of the field of right table
strm_in_left_key the key stream of the left input table
strm_in_left_field the field stream of the left input table
strm_in_left_e the end flag stream to mark the end of left input table
strm_in_right_key the key stream of the right input table
strm_in_right_field the field stream of the right input table
strm_in_right_e the end flag stream to mark the end of right input table
strm_out_left_key the output key stream of left table
strm_out_left_field the output field stream of left table
strm_out_right_key the output key stream of right table
strm_out_right_field the output field stream of right
strm_out_e the end flag stream to mark the end of out table