crash when create view

[fy0]

• asyncpg version: 0.12 (current pip version)
• PostgreSQL version: 9.6
• Python version: 3.6
• Platform: Windows 10
• Do you use pgbouncer?: No
• Did you install asyncpg with pip?: Yes
• If you built asyncpg locally, which version of Cython did you use?:
• Can the issue be reproduced under both asyncio and
  uvloop?: No

Code:

async def func():
    asyncpg_conn = await asyncpg.connect('postgresql://postgres@localhost/test')
    sql = 'create view aaa (a) as select 1 from "one_table" where id = $1', (123,)
    print(await asyncpg_conn.fetch(sql[0], *sql[1]))

asyncio.get_event_loop().run_until_complete(func())

Error:

  File "E:\codes\2017\28.stage-two-backend\view\common\association.py", line 163, in func
    print(await asyncpg_conn.fetch(sql[0], *sql[1]))
  File "C:\Anaconda3\lib\site-packages\asyncpg\connection.py", line 341, in fetch
    return await self._execute(query, args, 0, timeout)
  File "C:\Anaconda3\lib\site-packages\asyncpg\connection.py", line 1188, in _execute
    return await self._do_execute(query, executor, timeout)
  File "C:\Anaconda3\lib\site-packages\asyncpg\connection.py", line 1209, in _do_execute
    result = await executor(stmt, None)
  File "asyncpg\protocol\protocol.pyx", line 181, in bind_execute (asyncpg/protocol/protocol.c:66715)
  File "asyncpg\protocol\prepared_stmt.pyx", line 103, in asyncpg.protocol.protocol.PreparedStatementState._encode_bind_msg (asyncpg/protocol/protocol.c:62407)
ValueError: number of arguments (1) does not match number of parameters (0)

Wow, what happened?

[elprans]

The main issue is that CREATE VIEW does not accept parameters:

# create view aaa (a) as select 1 from "pg_type" where oid = $1;
ERROR:  there is no parameter $1
LINE 1: ...eate view aaa (a) as select 1 from "pg_type" where oid = $1;

We'll check if it's possible to handle this better than now.