/**
* Buffer logical tiles got from executing child executors
* This will also initialize a new join row set that belongs
* to the new result tile
*/
void AbstractJoinExecutor::BufferLeftTile(LogicalTile *left_tile) {
assert(join_type_ != JOIN_TYPE_INVALID);
left_result_tiles_.emplace_back(left_tile);
switch (join_type_) {
case JOIN_TYPE_LEFT:
case JOIN_TYPE_OUTER:
UpdateLeftJoinRowSets();
break;
default:
break;
}
}
/**
* Update join row sets depending on types of join.
* When new result tile is buffered, matching status of the
* rows in the new tile should be tracked.
* This is called by BufferTile routines, as join row sets
* should be updated when new result tile is buffered
*/
void AbstractJoinExecutor::UpdateJoinRowSets() {
PL_ASSERT(join_type_ != JoinType::INVALID);
switch (join_type_) {
case JoinType::LEFT:
UpdateLeftJoinRowSets();
break;
case JoinType::RIGHT:
UpdateRightJoinRowSets();
break;
case JoinType::OUTER:
UpdateFullJoinRowSets();
break;
default:
break;
}
}
/**
* Update join row sets depending on types of join.
* When new result tile is buffered, matching status of the
* rows in the new tile should be tracked.
* This is called by BufferTile routines, as join row sets
* should be updated when new result tile is buffered
*/
void AbstractJoinExecutor::UpdateJoinRowSets() {
assert(join_type_ != JOIN_TYPE_INVALID);
switch (join_type_) {
case JOIN_TYPE_LEFT:
UpdateLeftJoinRowSets();
break;
case JOIN_TYPE_RIGHT:
UpdateRightJoinRowSets();
break;
case JOIN_TYPE_OUTER:
UpdateFullJoinRowSets();
break;
default:
break;
}
}
/**
* Update the row set with all rows from the last tile from both child
*/
void AbstractJoinExecutor::UpdateFullJoinRowSets() {
UpdateLeftJoinRowSets();
UpdateRightJoinRowSets();
}
