def get_result(self):
join_index, left_indexer, right_indexer = self._get_join_info()
# this is a bit kludgy
ldata, rdata = self.left._data, self.right._data
lsuf, rsuf = self.suffixes
llabels, rlabels = items_overlap_with_suffix(ldata.items, lsuf,
rdata.items, rsuf)
if self.fill_method == 'ffill':
left_join_indexer = _algos.ffill_indexer(left_indexer)
right_join_indexer = _algos.ffill_indexer(right_indexer)
else:
left_join_indexer = left_indexer
right_join_indexer = right_indexer
lindexers = {
1: left_join_indexer} if left_join_indexer is not None else {}
rindexers = {
1: right_join_indexer} if right_join_indexer is not None else {}
result_data = concatenate_block_managers(
[(ldata, lindexers), (rdata, rindexers)],
axes=[llabels.append(rlabels), join_index],
concat_axis=0, copy=self.copy)
typ = self.left._constructor
result = typ(result_data).__finalize__(self, method='ordered_merge')
self._maybe_add_join_keys(result, left_indexer, right_indexer)
return result
def get_result(self):
if self.indicator:
self.left, self.right = self._indicator_pre_merge(
self.left, self.right)
join_index, left_indexer, right_indexer = self._get_join_info()
ldata, rdata = self.left._data, self.right._data
lsuf, rsuf = self.suffixes
llabels, rlabels = items_overlap_with_suffix(ldata.items, lsuf,
rdata.items, rsuf)
lindexers = {1: left_indexer} if left_indexer is not None else {}
rindexers = {1: right_indexer} if right_indexer is not None else {}
result_data = concatenate_block_managers(
[(ldata, lindexers), (rdata, rindexers)],
axes=[llabels.append(rlabels), join_index],
concat_axis=0, copy=self.copy)
typ = self.left._constructor
result = typ(result_data).__finalize__(self, method='merge')
if self.indicator:
result = self._indicator_post_merge(result)
self._maybe_add_join_keys(result, left_indexer, right_indexer)
return result
def _get_merge_data(self):
"""
Handles overlapping column names etc.
"""
ldata, rdata = self.left._data, self.right._data
lsuf, rsuf = self.suffixes
llabels, rlabels = items_overlap_with_suffix(ldata.items, lsuf, rdata.items, rsuf)
if not llabels.equals(ldata.items):
ldata = ldata.copy(deep=False)
ldata.set_axis(0, llabels)
if not rlabels.equals(rdata.items):
rdata = rdata.copy(deep=False)
rdata.set_axis(0, rlabels)
return ldata, rdata
def _get_merge_data(self):
"""
Handles overlapping column names etc.
"""
ldata, rdata = self.left._data, self.right._data
lsuf, rsuf = self.suffixes
llabels, rlabels = items_overlap_with_suffix(
ldata.items, lsuf, rdata.items, rsuf)
if not llabels.equals(ldata.items):
ldata = ldata.copy(deep=False)
ldata.set_axis(0, llabels)
if not rlabels.equals(rdata.items):
rdata = rdata.copy(deep=False)
rdata.set_axis(0, rlabels)
return ldata, rdata
