text: Title: Slow query with ARRAY in SELECT and in WHERE .. ANY
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  * **asyncpg version**: 0.25.0
  * **PostgreSQL version**: PostgreSQL 12.9 (Debian 12.9-1.pgdg110+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
  * **Do you use a PostgreSQL SaaS?  If so, which?  Can you reproduce
    the issue with a local PostgreSQL install?**: PostgreSQL is local, I can reproduce the issue
  * **Python version**: 3.9
  * **Platform**: Debian 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](https://github.com/magicstack/uvloop)?**: YES
  
  <!-- Enter your issue details below this comment. -->
  
  Two essentially identical requests are executed at different times and it depends on:
  1. The presence of the ARRAY-field in the SELECT section 
  2. The presence of the ANY expression in the WHERE section and the parameter of List type 
  
  The code below reproduces the described problem by showing:
  
  ```
  (venv) root@hq77-01-dev01:/opt/scapsule-back# python t.py
  Time 1 is 0:00:00.001613
  Time 2 is 0:00:02.937298
  ```
  
  Thank you.
  
  ```
  import asyncio
  from datetime import datetime
  import asyncpg
  from app.config import DB_URL
  import uvloop
  
  
  async def main():
      conn = await asyncpg.connect(DB_URL)
      await conn.execute('''
          CREATE TABLE IF NOT EXISTS public.records
          (
              pk bigint NOT NULL,
              errors integer[] DEFAULT ARRAY[]::integer[],
              CONSTRAINT records_pkey PRIMARY KEY (pk)
          ) TABLESPACE pg_default;
      ''')
  
      await conn.execute('''
          INSERT INTO records (pk, errors) VALUES
              (1, ARRAY[1,2]), (2, ARRAY[1,2]), (3, ARRAY[1,2]), (4, ARRAY[1,2]),
              (5, ARRAY[1,2]), (6, ARRAY[1,2]), (7, ARRAY[1,2]), (8, ARRAY[1,2]),
              (9, ARRAY[1,2]), (10, ARRAY[1,2]), (11, ARRAY[1,2]), (12, ARRAY[1,2]);
      ''')
  
      a = datetime.now()
      await conn.execute('SELECT pk, errors FROM records WHERE pk=ANY(ARRAY[1,2,3,4]);')
      b = datetime.now()
      print(f'Time 1 is {b - a}')
      await conn.execute('SELECT pk, errors FROM records WHERE pk=ANY($1);', [1,2,3,4])
      c = datetime.now()
      print(f'Time 2 is {c - b}')
  
      await conn.execute('DROP TABLE records;')
  
      await conn.close()
  
  
  if __name__ == '__main__':
      uvloop.install()
      asyncio.run(main())
  
  ```