class xf::database::gqe::PartJoinConfig¶

#include "gqe_partjoin_config.hpp"

Overview¶

class PartJoinConfig: protected xf::database::gqe::BaseConfig

Methods¶

ShuffleWritePart¶

std::vector <int8_t> ShuffleWritePart (
    Table& tab_,
    std::vector <int8_t> sw_shuffle_scan_part
    )

setup the sw-shuffle for write out in partition kernel

PartJoinConfig¶

PartJoinConfig (
    Table a,
    std::string filter_a,
    Table b,
    std::string filter_b,
    std::string join_str,
    Table c,
    std::string output_str,
    int join_Type = INNER_JOIN
    )

constructor of PartJoinConfig .

The class generates join configure bits by parsing the join .run() arguments,

Parameters:

a	left table
filter_a	filter condition of left table
b	right table
filter_b	filter condition of right table
join_str	join condition(s)
evals	eval expressions list
evals_const	eval expression constant list
c	result table
output_str	output column mapping
join_type	INNER_JOIN(default) \| SEMI_JOIN \| ANTI_JOIN.
part_tag	if use partition kernel

getJoinConfigBits¶

ap_uint <512>* getJoinConfigBits () const

get the gqeJoin kernel config

Returns:

join config bits

getPartConfigBits¶

ap_uint <512>* getPartConfigBits () const

get the gqePart kernel config

Returns:

join config bits

getShuffleScanHJ¶

std::vector <std::vector <int8_t>> getShuffleScanHJ () const

get the sw-shuffle config of scan in L3 join kernel

Returns:

return the scan sw_shuffle cfg

getShuffleWriteHJ¶

std::vector <int8_t> getShuffleWriteHJ () const

get the sw-shuffle config of write in L3 join kernel

Returns:

return the write sw_shuffle cfg

getShuffleScanPart¶

std::vector <std::vector <int8_t>> getShuffleScanPart () const

get the sw-shuffle config of scan in L3 part kernel

Returns:

return the scan sw_shuffle cfg

getShuffleWritePart¶

std::vector <std::vector <int8_t>> getShuffleWritePart () const

get the sw-shuffle config of write in L3 part kernel

Returns:

return the write sw_shuffle cfg