Error 'ProgrammingError: no results to fetch' under 'NodeConnection.execute' method call that executes utility query that doesn't return any result

[maksm90]

This fragment:

with node.connect() as con:
      con.execute('create table range_partitioned as select generate_series(1, 1e4) i')

fails with error:

Traceback (most recent call last):
  ...
  File ".../lib/python2.7/site-packages/testgres/testgres.py", line 132, in execute
    return self.cursor.fetchall()
ProgrammingError: no results to fetch

[vadv]

fetchall() must return rows. Need to implement PERFORM analog.

[funbringer]

fixed in 0.1.15