Fixes #142

[loren]

• When through_tables are explicitly specified, the table gets added to the tree when it shouldn't.

[toluaina]

I believe this will break a test case.
Can you please try the main branch again and see if this issue was fixed?

[mpaolino]

@toluaina can you elaborate on your fix or point to the commit that fixed it? I did try this and it fixed this exact same issue for me and I'll like to contribute if possible, your main branch is getting a different error if I try it:

2022-10-17 22:15:57.859:ERROR:pgsync.elastichelper: Exception list index out of range
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/pgsync/elastichelper.py", line 140, in bulk
    raise_on_error=raise_on_error,
  File "/usr/local/lib/python3.7/site-packages/pgsync/elastichelper.py", line 195, in _bulk
    ignore_status=ignore_status,
  File "/usr/local/lib/python3.7/site-packages/elasticsearch/helpers/actions.py", line 484, in parallel_bulk
    actions, chunk_size, max_chunk_bytes, client.transport.serializer
  File "/usr/local/lib/python3.7/multiprocessing/pool.py", line 748, in next
    raise value
  File "/usr/local/lib/python3.7/multiprocessing/pool.py", line 121, in worker
    result = (True, func(*args, **kwds))
  File "/usr/local/lib/python3.7/multiprocessing/pool.py", line 140, in _helper_reraises_exception
    raise ex
  File "/usr/local/lib/python3.7/multiprocessing/pool.py", line 292, in _guarded_task_generation
    for i, x in enumerate(iterable):
  File "/usr/local/lib/python3.7/site-packages/elasticsearch/helpers/actions.py", line 155, in _chunk_actions
    for action, data in actions:
  File "/usr/local/lib/python3.7/site-packages/pgsync/sync.py", line 809, in _payloads
    payloads,
  File "/usr/local/lib/python3.7/site-packages/pgsync/sync.py", line 482, in _insert_op
    if key == foreign_keys[node.parent.name][i]:
IndexError: list index out of range