psycopg2.errors.SyntaxError: each UNION query must have the same number of columns

[pcoccoli]

Traceback (most recent call last):
  File "/home/pcoccoli/.pyenv/versions/gh392/bin/kestrel", line 7, in <module>
    exec(compile(f.read(), __file__, 'exec'))
  File "/home/pcoccoli/github/kestrel-lang/bin/kestrel", line 8, in <module>
    runpy.run_module('kestrel', run_name='__main__')
  File "/home/pcoccoli/.pyenv/versions/3.9.2/lib/python3.9/runpy.py", line 213, in run_module
    return _run_code(code, {}, init_globals, run_name, mod_spec)
  File "/home/pcoccoli/.pyenv/versions/3.9.2/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/__main__.py", line 54, in <module>
    outputs = session.execute(huntflow)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/session.py", line 262, in execute
    return self._execute_ast(ast)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/session.py", line 437, in _execute_ast
    output_var_struct, display = execute_cmd(stmt, self)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/codegen/commands.py", line 92, in wrapper
    return func(stmt, session)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/codegen/commands.py", line 60, in wrapper
    ret = func(stmt, session)
  File "/home/pcoccoli/github/kestrel-lang/src/kestrel/codegen/commands.py", line 262, in get
    session.store.merge(
  File "/home/pcoccoli/github/firepit/firepit/sqlstorage.py", line 532, in merge
    cursor = self._create_view(viewname, stmt, sco_type, deps=input_views)
  File "/home/pcoccoli/github/firepit/firepit/pgstorage.py", line 141, in _create_view
    self._execute(f'CREATE OR REPLACE VIEW "{viewname}" AS {select}', cursor)
  File "/home/pcoccoli/github/firepit/firepit/sqlstorage.py", line 82, in _execute
    cursor.execute(statement)
  File "/home/pcoccoli/.pyenv/versions/3.9.2/envs/gh392/lib/python3.9/site-packages/psycopg2/extras.py", line 236, in execute
    return super().execute(query, vars)
psycopg2.errors.SyntaxError: each UNION query must have the same number of columns
LINE 43: ...mbership.var = 'cmd_local'::text))) UNION  SELECT process.ty...
                                                              ^